November 2016 PLAIN SAILING Portsmouth HQ flies the flag for Sir Ben Ainslie's America's Cup challenge
SOUND PRINCIPLES HEAT OF THE DEBATE Acoustic design hits Decarbonising the right note in music venue UK heating supply
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p02_CIBSEMagNov16.indd 2 17/10/2016 11:57 Contents
NEWS 34 8 News Hydrogen could replace gas; HFC agreement hailed; construction must reform its ‘dysfunctional training’; energy storage encouraged
14 CIBSE News Institutions sign agreement; Employer of the Year Awards coverage; Institute of Refrigeration signs MoU
OPINION
18 Feedback Considerations on cost-benefit analysis and the role of FMs 20 The decade with a flair for innovation Mike Holmes says today’s software tools were built on 1970s technology 62 Cost model 22 Zero London Comparison of fan coil units and Hywel Davies discusses the London chilled ceilings Plan’s zero carbon requirement Features 65 Prevention or cure 24 Building on Brexit Avoiding legionella in district Julie Godefroy presents her manifesto 28 Winner takes it all heating systems for a post-Brexit low carbon Britain The Young Graduate of the Year is unveiled 26 Engineering our 71 Risk averse 30 People power How a CHP contract can help meet post-Brexit future Six CIBSE conference speakers explain how low-carbon targets Facing the post-referendum buildings can be improved for occupants challenges head on 76 Pipe dreams 32 Building ties Enhancing dehumidification with CIBSE ASHRAE 40th anniversary seminar coverage heat pipes
LEARNING 34 Wrestling with the future of heat Debate on the future energy mix 81 CPD Offsite manufacture for building 38 Fresh thinking CLASSIFIED services A single-sided ventilation strategy that meets environmental criteria for schools 86 Products A round-up of systems and services 44 COVER FEATURE for the industry Raising the bar Land Rover BAR’s Portsmouth headquarters
51 Sound of success PEOPLE AND JOBS Acoustic design at Stowe Music School 91 Appointments 54 On the up Jobs at jobs.cibsejournal.com Topics covered at the 2016 Symposium on Lift and 93 Q&A Escalator Technologies Poppy Szkiler, of Quiet Mark, discusses the low-noise HVAC SPECIAL FEATURES certification G Industrial/commercial heating & cooling 94 Looking ahead Building Performance Conference 57 High stakes and Exhibition; CPD training; CIBSE A hybrid air conditioning system for tall buildings Groups, Regions and Societies
www.cibsejournal.com November 2016 CIBSE Journal 3
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p04_CIBSEMagNov16.indd 4 17/10/2016 11:58 EDITORIAL
Change of tack rexit might mean Brexit, but as far as emissions are
www.cibsejournal.com concerned, leaving the EU doesn’t affect Britain’s requirement to meet carbon reduction targets set out in Editorial B 2008 Editor: Alex Smith the Climate Change Act. This commits the UK to reducing Tel: 01223 378034 Email: [email protected] emissions by at least 80% in 2050 from 1990 levels. Deputy editor: Liza Young Tel: 01223 378048 This target was based on advice from the Climate Change Email: [email protected] Designer: James Baldwin Committee (CCC) report Building a low-carbon economy and, last Technical editor: Tim Dwyer month, the CCC published a new report –Next steps for UK heat Advertisement sales Sales manager: Jim Folley policy – that considers the best ways of decarbonising the heat used in Tel: 020 7324 2786, [email protected] Sales executive: Darren Hale our buildings. The report concludes that a combination of hydrogen, Tel: 020 7880 6206 [email protected] heat pumps and heat networks will help deliver the necessary cuts Sales executive: Patrick Lynn Tel: 020 7880 7614 in carbon. However, it concedes that there are plenty of barriers to [email protected] Senior sales executive: Paul Wade overcome, including the development of large-scale carbon-capture Tel: 020 7880 6212 [email protected] and storage technology if hydrogen is to succeed. Advertising production: Jane Easterman Tel: 020 7880 6248 Our debate on page 34, between consultant Phil Jones and WSP [email protected] Parsons Brinckerhoff’s Barny Evans, offers some excellent insight For CIBSE Journal production manager: Nicola Hurley into the issues around each technology. One thing is clear – it’s not an Tel: 020 8772 3697, [email protected] Editorial advisory panel electricity versus gas debate. It’s much more nuanced than that ; for George Adams, engineering director, example, the gas grid is still likely to be an important part of our heat Spie Matthew Hall Patrick Conaghan, partner, Hoare Lea energy mix, but it will be carrying decarbonised gas in the form of Consulting Engineers Rowan Crowley, managing director, CIBSE hydrogen or biomethane. Services Chris Jones, Flakt Woods The CCC report warns that the targets will Philip King, director, Hilson Moran Nick Mead, engineering consultant One thing is clear – not be met unless we improve the energy Jonathan Page, building services consultant engineer, MLM it’s not an electricity effi ciency of existing and new buildings. Geoff rey Palmer, director, Sweco Dave Pitman, director, Arup versus gas debate. It’s One standard bearer of energy effi ciency is Christopher Pountney, senior engineer, Aecom much more nuanced the headquarters building of the Land Rover Paul Reeve, director, ECA Alan Tulla, independent lighting consultant than that BAR sailing team, which is taking part in the Ged Tyrrell, managing director, Tyrrell Systems Hannah Williams, mechanical engineer, Atkins America’s Cup in B ermuda next year. The Ant Wilson, director, Aecom team was founded by multi-Olympic gold Terry Wyatt, consultant to Hoare Lea medal winner Sir Ben Ainslie, and he has put sustainability at the
CIBSE Journal is written and produced by CPL (Cambridge Publishers Ltd) Tel: +44 (0)1223 378000. www.cpl.co.uk heart of his challenge – not just in terms of energy use and resource 1 Cambridge Technopark, Newmarket Road, Cambridge CB5 8PB. effi ciency, but also when it comes to giving local people opportunities Editorial copy deadline: First day of the month preceding the publication month to work in marine technology, and in promoting STEM subjects as Printed by: Warners Midlands PLC widely as possible to young people. The opinions expressed in editorial material do not necessarily represent the views of the Chartered Institution of Building The new HQ building in Portsmouth encapsulates the team’s Services Engineers (CIBSE). Unless specifi cally stated, goods or services mentioned in editorial or advertisements are not formally endorsed by CIBSE, which does not guarantee or philosophy, with natural ventilation to the main workshop, extensive endorse or accept any liability for any goods and/or services featured in this publication. use of renewables, and provision for adding seawater cooling and CIBSE, 222 Balham High Road, London SW12 9BS Tel: +44 (0)20 8675 5211. www.cibse.org ©CIBSE Services Ltd. ISSN 1759-846X CHP in the future. What you can’t see is how quickly the building
Subscription enquiries had to be designed and built, and this could only be If you are not a CIBSE member but would like to receive CIBSE Journal, subscribe now! Costs are £80 (UK) and £100 achieved in time for the fi rst America’s Cup heats (international). For subscription enquiries, and any change of address information, please contact Nicola Hurley at nhurley@ cibse.org or telephone +44 (0) 20 8772 3697. Individual copies through close collaboration between the team are also available at a cost of £7 per copy plus postage. The 2016 US annual subscription price is £100. Airfreight and members, and extensive use of BIM. It’s a good mailing in the US by Air Business, C/O Worldnet Shipping NY Inc, C/O Air Business Ltd / 155-11 146th Street, Jamaica, New sign for the team’s chances next year. York, NY11434. Periodical postage pending at Jamaica NY 11431. US Postmaster: Send address changes to CIBSE Journal, C/O Air Business Ltd / 155-11 146th Street, Jamaica, New York, NY11434. Alex Smith, editor Cover image: Harry KH/Land Rover BAR [email protected]
ABC audited circulation: 18,625 January to December 2015
www.cibsejournal.com November 2016 CIBSE Journal 5
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p06-07_CIBSEMagNov16.indd 6 17/10/2016 12:00 T AT THE E WORLD. ssentials right from the get-go.
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p06-07_CIBSEMagNov16.indd 7 17/10/2016 12:00 NEWS All the latest news from around the building industry
MAX FORDHAM ENGINEERS’ SOUND AND VISION FOR RIBA PRIZE WINNER
Building engineers at Max Fordham played a key role in the design of this year’s RIBA Stirling Prize winning building. Damien Hirst’s Newport Street Gallery, in Vauxhall, London, was designed by architects Caruso St John to house the artist’s private collection. Max Fordham designed the environmental engineering, the acoustics and lighting for the refurbishment of three listed former theatre-scenery workshops and the addition of extensive gallery space. The building’s saw-tooth roof was positioned to allow indirect sunlight into the galleries, and natural daylight was used wherever possible. However, the roof design also meant most of the M&E plant had to be installed in the basement. The building is next to a busy railway, so particular attention had to be paid to the acoustic design, with high-performance sound insulation and low-noise air conditioning used.
Digital tech not big Spanish star hits Vegas jackpot in construction Antoni Sapina Grau has been crowned with Scott Mason, of Lochinvar and Building engineering companies CIBSE ASHRAE Graduate of the Year the University of Northampton, are not taking full advantage of 2016. Grau, who works for WSP Parsons in third place. The other fi nalists digital technologies , according Brinckerhoff , is the 21st winner of the were Samantha Carlsson, Cardiff to accountants KPMG. Its Global Construction Survey 2016 found annual award and the fi rst Spanish University and Hoare Lea; Richard that just 8% of respondents could graduate to secure the top prize . He Garthwaite, the Royal School of be described as ‘cutting-edge wins a trip to the ASHRAE Winter Military Engineering; Monica Madrigal, visionaries’ and only about 20% Meeting, which next year takes place in Universidad Politécnica Madrid/ were radically changing their Las Vegas. Foster & Partners; Farai Mwashita , business approach as a result of Grau completed his MSc in Antoni Sapina Grau Loughborough/Hilson Moran; and digital tech – primarily, they say, building services engineering with Samima Saqib , Heriot-Watt (Dubai). because they lack the necessary sustainable energy at Brunel University, Ewing received £500 and Mason £300 skills and resources. London, having completed a BEng in architectural from The Rumford Club , while the Manly Trust made a KPMG analyst Geno Armstrong engineering at the Polytechnic University of Valencia. presentation of £100 to each of the other fi ve fi nalists. suggested most firms were ‘content to follow rather than He is a qualifi ed B reeam Associate and Low Carbon The graduate prize was part of the CIBSE Young lead’. ‘Many lack a clear Consultant, and was part of the team that won this Engineers’ Awards – including the Employee of the technology strategy, and either year’s Teambuild Construction Competition. Year awards – held at the Institution of Mechanical adopt it in a piecemeal fashion, Atkins’ Katie Ewing, who graduated from the Engineers last month. To fi nd out the winners, see or not at all,’ he added. University of Bath, was runner-up in the competition, page 15.
Movers and makers Send your job moves to [email protected] Philips appoints Nicholl Dickinson moves to Rehau appoints Ng Philips Lighting has named TSP Projects Rehau has appointed Vincent David Nicholl as its CEO John Dickinson has been Ng as specifi cations manager, for the U K and Ireland. He appointed business specialising in heating and succeeds Peter Maskell, development director cooling systems, including who will be retiring at the of TSP Projects, based in underfl oor heating, thermally end of this year. Nicholl Manchester. He has held activated building structure joins from Rockwell Automation, where senior operational and business development (TABS) and chilled ceiling solutions. Based at he was country director for the UK and positions with Aecom and, most recently, the Rehau hub at the London Building Centre, Ireland, having previously spent 13 years Hoare Lea . A chartered electrical engineer, Ng will advise on integrating the fi rm’s systems with Schneider Electric, where he held Dickinson has 30 years’ experience in sectors into new-build and refurbishment projects. senior positions in the UK, Romania and such as health, education, rail, process He will also deliver Rehau’s RIBA- and CIBSE- Sweden. chemicals, pharma, commercial and retail. accredited CPD seminars to specifi ers.
8 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp08-09 News.indd 8 21/10/2016 13:12 NEWS
Act now to secure future of In brief HEAT NETWORK FUNDING ON OFFER UK heat, report warns MPs The government has released the first part of a £320m fund to storage (CCS) technology – but upgrade heating in towns and G Politicians must decide what ministers cancelled a flagship CCS cities using networks supplying role hydrogen will play in policy abruptly last November. low carbon and recycled heat. hitting climate targets Distribution grid owner The Heat Networks Investment Northern Gas Networks has Project (HNIP) will be rolled out Hydrogen could be used instead proposed the use of hydrogen, over five years to help build of natural gas to heat UK homes, which would require new more networks and improve the according to a Committee on household appliances, but could efficiency of existing low carbon schemes in England and Wales Climate Change (CCC) report. be distributed in existing gas – but it is kicking off with a £39m Next steps for UK heat policy, grids. It has drawn up plans to pilot project. published last month, identified convert the city of Leeds to run The department for Business, replacing natural gas in the UK’s on hydrogen, as a precursor to a Energy and Industrial Strategy grid as one of the main options for £50bn national rollout. said heat networks could reduce decarbonising heat supplies. The government has earmarked heating costs – in some cases The committee also said £320m for investment in heat by more than 30% – by recycling heat pumps and heat networks networks up to 2020. And to waste heat from factories, power could, potentially, be the biggest decarbonise heat using heat stations and even the London generators of low carbon heat. It pumps alone, the current 20,000 Underground, as well as CHP and biomass schemes. said heat pumps would be most installations per year would need For details of how to apply for suitable for areas that are off the CCC chair Lord Deben to rise 50-fold, to one million, from the HNIP pilot project finance, visit gas grid, while heat networks are the mid-2030s, the CCC said. It hnip.salixfinance.co.uk suited to cities. They can use to be done if you are going to meet would also require investment in waste heat, large-scale heat your targets… It is for government additional zero carbon electricity- pumps that draw warmth from to decide the mix between generating capacity. SOLAR POWER rivers and, potentially, hydrogen, regulation and incentives.’ CIBSE CHP/District Heating OVERTAKES COAL The UK generated more energy said the CCC. The government will have to Group chair, Phil Jones, said: ‘This from solar power than coal-fired According to the report, policy decide what role hydrogen will is a significant change – almost power stations in the past six needs strengthening now to play by 2025, if it is to implement a U-turn – from the single magic months. Analysts Carbon Brief increase the implementation of its chosen plan in time to hit its bullet of 100% electricity and said an estimated 6,964GWh of low carbon measures in the next 2050 climate targets, the CCC said. heat pumps, which was the policy electricity was produced from decade. The CCC’s scenarios Hydrogen could be produced thinking over the past five years. solar cells, 10% higher than the include around a 15% reduction in using spare renewable electricity Now we need to install heat 6,342GWh generated by coal, energy used for heating existing from biofuels or from fossil fuels. networks with even stronger local and equivalent to solar providing buildings by 2030, through For the latter to represent a low planning to integrate them into 5.2% of UK electricity demand, efficiency improvements. carbon fuel source, the carbon the built environment.’ compared to 4.7% for coal. The researchers did point out Lord Deben, CCC chair, said: dioxide would need to be disposed Read our 'future of heat’ debate the significant seasonal effect, ‘[Improving energy efficiency] has of using carbon capture and on page 34. with less demand for energy in the spring and summer months. Solar power generation overtook coal for the whole month of May and for a whole quarter from ‘Get a move on’ with energy storage June to September.
and demand response, ministers told SHAPE UP TO GET THE MOST EFFICIENT BUILDINGS The UK government has been advised to give as of the committee, which has now been disbanded Energy demand in new homes much support as possible to energy storage and following the closure of the Department for Energy could be halved if more focus demand-response innovation, at the expense of new and Climate Change (DECC). is put on the shape and form power generation. ‘There is an incredible opportunity for the UK of housing, claims the NHBC In the final report produced by the Energy and to become a world leader in these disruptive Foundation. Its latest report Climate Change Committee (ECC), ministers were technologies. Yet our current energy security shows that, for the same floor urged to redesign the UK’s Capacity Market to subsidies favour dirty diesel generation over smart, area, mid-floor apartments send out a ‘clear signal’ that demand response is a new, clean tech solutions,’ he added. may have less than half the energy demand of detached preferred option to diesel generation plants. They ‘Getting demand response right will empower homes and bungalows. Further were also advised to remove the regulatory barriers consumers, reduce bills, ease pressure on the grid, improvements in energy faced by energy storage quickly. and lower carbon dioxide emissions. efficiency can be demonstrated ‘The government must get a move on and ‘Energy storage is a vital keystone in building a for simply-shaped – rectangular, encourage the energy market to embrace smart clean electricity system. It will mean we won’t have rather than ‘L’ or ‘T’ shaped – technological solutions such as energy storage and to wait for the sun to shine or the wind to blow to get buildings. For more details, visit demand-side response,’ said Angus MacNeil, chair our energy from renewables.’ www.nhbcfoundation.org
www.cibsejournal.com November 2016 CIBSE Journal 9
CIBSE Nov16 pp08-09 News.indd 9 21/10/2016 13:13 NEWS
Client satisfaction Construction must reform hits new high More projects are being finished on time and to budget, its ‘dysfunctional training’ according to a new survey by the
research group Glenigan. SPEEDKINGZ / S Its 2016 UK Performance Report G for the CITB included feedback Report proposes levy on from more than 1,000 people those who don’t commission HUTTER S involved in projects completed in a ‘more responsible way’ in 2015. The results showed TOC K positive scores against most key Clients should be penalised if they performance indicators (KPIs), employ contractors who fail to including the fact that 64% of invest in training and research projects came in on budget, an and development, according 8% improvement on 2014. to a hard-hitting, government- Overall satisfaction with the commissioned report. finished product was rated at According to the Farmer or above eight out of 10 by 85% of clients, while contractor Review of the UK Construction quality,’ said the author, Mark who proposed a levy on clients satisfaction with the performance Labour Model, the industry Farmer. ‘This needs to happen equal to 0.5% of a scheme’s of their client and consultancy has a ‘dysfunctional training more in construction, so that the construction cost, which could teams also rose, to 74%. model’, lacks innovation investors, developers or building be avoided by commissioning in a However, rising labour and and collaboration, and faces owners hiring construction ‘more responsible way’. material costs meant industry ‘inexorable decline’ unless drastic firms dictate the use of modern ‘Carrying on as we are is simply profitability took a dip, from 2.8% changes are made. methods of delivery and invest not an option,’ he added. ‘With to 2.5%. ‘If you buy a new car, you appropriately in the skills agenda.’ digital technology advancements expect it to have been built in a There are more similarities in almost every other industry, factory to exacting standards, to between manufacturing and and with the construction labour IAQ expert offers be delivered on time, to an agreed construction than people are pool under serious pressure, the ‘smart’ answers price and to a predetermined led to believe, said Farmer, time has come for action.’ The world-renowned indoor air quality (IAQ) expert Max DESIGNING TO EXTREMES IN CENTRAL ASIA Sherman will address a UK seminar and webinar on 9 November, starting at 6pm. The senior scientist at the Lawrence Berkeley National Laboratory, in California, will be speaking live from the US about the challenges engineers face when trying to balance a healthy IAQ with lower HVAC power and energy consumption. The event – being hosted by the Building Engineering Services Association (BESA) and organised by the CIBSE ASHRAE Aecom has designed the services for a university the rest of the country. Aecom developed a ground Group – is free to attend. campus in the Krygyz Republic that experiences source heating and cooling system, which uses the Sherman, an ASHRAE temperatures ranging from -30°C to 30°C. The University aquifer beneath the campus as a low-grade energy Distinguished Lecturer, is a board of Central Asia campus opened last month in Naryn, source. Local people usually resort to burning coal or member of the Air Infiltration and which – as well as having extreme weather – lies in a dried animal waste in the winter because of the lack Ventilation Centre, an annex of seismically active, mountainous region, isolated from of infrastructure and utilities. the Brussels-based International Energy Agency. He believes a more harmonious relationship between IAQ and energy Cities’ energy independence vital consumption can be achieved by being ‘smarter’ about how Arup has advised city governments to take more up opportunities for cities to secure their own and when ventilation occurs. responsibility for their energy, in a report for the energy using developments such as advanced power The session will be chaired 23rd World Energy Congress. The global engineering electronics, smart metering and local generation. by BESA technical director Tim consultant said local authorities could not afford to It urged urban planners to invest in ‘transactive Rook, and a limited number of ‘physical’ places are available rely on centralised energy generation and should take energy’, which combines economic and control in London for anyone wanting to greater control to meet demand, as cities expand to mechanisms. This would allow cities to develop more join the discussion in person. For consume more than 50% of the world’s power. integrated and lower-cost networks, capable of more details, email: ewenrose@ Arup said new technologies, innovative financing handling a much greater share of renewable sources, as btinternet.com mechanisms and political changes were opening well as district heating and hydrogen gas networks.
10 CIBSE Journal October 2016 www.cibsejournal.com
CIBSE Nov16 pp10 News.indd 10 21/10/2016 13:14 L CIA SY R S E T M E M M
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10 YEARS
2 0 0 6 -20 1 6
www.cibsejournal.com November 2016 CIBSE Journal 11
p11_CIBSEMagNov16.indd 11 17/10/2016 12:01 NEWS
In brief HFC deal hailed, but critics WSP ACQUIRES MOUCHEL CONSULTING Kier Group has sold its Mouchel say it’s too little too late Consulting arm to WSP Parsons Brinckerhoff for £75m. real difference to global warming. forward’. However, UK negotiator Kier acquired the Mouchel G Accord could help to prevent As the use of air conditioning Clare Perry, of the Environmental Group in June 2015, for £265m, half a degree of warming has increased worldwide, so Investigation Agency, said but announced earlier this year consumption of HFC gases has ‘compromises had to be made’. that it intended to dispose of the Almost 200 countries have signed soared, but climate change She pointed out that 85% consultancy part of the business, an agreement in Rwanda to campaigners say their use of developing countries had which employs around 2,000 staff. reduce the amount of global- threatens the aims of the Paris committed to the early schedule, Last year, Mouchel Consulting warming refrigerant gases used in Agreement, signed last year by 195 starting in 2024 – ‘which is a very reported £125m in revenue and air conditioning systems. countries. The global-warming significant achievement’ – adding The complex Kigali Agreement potential of HFCs is thousands of that ‘according to our initial an operating profit of £8m. Its is an amendment to the times greater than carbon dioxide. calculations, this deal will avoid gross assets were valued at £29m. Montreal Protocol and states that President Obama called the more than 70 billion tonnes of
developed countries will begin deal ‘an ambitious and far- CO2-equivalent emissions by 2050, FLÄKT WOODS AND removing HFCs from use in 2019. reaching solution’, and Kerry which will be close to avoiding a DENCOHAPPEL JOIN FORCES Developing countries will start called it ‘a monumental step half a degree of warming’. Air movement specialist Fläkt to restrict use in 2024 and begin Woods has merged with the reductions in 2029 – although, air conditioning and filtration confusingly, this second category manufacturer DencoHappel. includes China, which is the The combined company, which world’s largest manufacturer and will operate under the FläktGroup consumer of HFCs. name, is owned by Triton. Several other countries – In 2015, the companies had including India, Kuwait, Pakistan, combined revenues of €700m and Saudi Arabia – will cap consumption in 2028 and start and employed 3,800 people. making cuts in use in 2032. PHOTO
The agreement was hailed H OUSE / S SWEGON BUYS RUSKIN by US President Barack Obama
Swedish indoor climate control and his Secretary of State, John HUTTERSTOCK manufacturer Swegon has Kerry, but it was labelled a ‘fudge’ acquired air distribution, by some scientists, who said it fire and smoke control, and would start too late to make any ventilation manufacturer Ruskin Air Management from Johnson Controls International. Ruskin has operations in Whitstable, Kent, and Bridgnorth, BRA insists flammable gases will Shropshire, and the company employs 220 people. ‘This acquisition gives us a be needed to achieve F-Gas targets very strong local presence The European F-Gas Regulation, enacted to reduce the were the only pure compounds with a very low GWP, and identity in the UK, through amount of global-warming gas in the atmosphere, and ‘significantly less flammable than current Class the well-known Ruskin brands,’ will not be workable unless increasing amounts of 2 and Class 3 refrigerants’. ‘The F-Gas regulation will said Swegon CEO Hannu flammable alternatives for air conditioning and require the use of refrigerants with significantly lower Saastmoinen. He added that refrigeration projects are used, claims the British GWP to meet phase-down requirements,’ he said. Swegon was also gaining a new Refrigeration Association (BRA). ‘While HFO blends can be made non-flammable, there area of ‘competence’ through Its president, John Smith, told a briefing at the will always be a GWP penalty. Ruskin’s ‘extensive fire and smoke British Library that to achieve the ‘significantly ‘The F-Gas Regulations will not work without the product knowledge’. lower’ global warming potential (GWP) targets in introduction of A2L refrigerants – and the biggest ‘As a long-term industrial the legislation, the industry must ‘face up to the challenge will be in air conditioning, where there is no investor, our aim is to reinforce need to make use of these fluids and understand the non-flammable alternative to [popular gas] R410A.’ and further develop the implications [of using flammable substances]’. Many manufacturers now offer A2L refrigerants local manufacturing base in Discussions are under way with the Health and as alternatives to most HFCs – the subject of a major Whitstable and Bridgnorth,’ Safety Executive (HSE) to clarify safety concerns about global phase-down announcement (see above). said Saastmoinen. the use, storage and transportation of these gases. A However, Smith pointed out that A2L refrigerants Ruskin managing director new refrigerant classification – A2L – has also been were not suitable for retrofit applications, so end Kevin Munson said the deal was created to differentiate between levels of flammability. users would have to invest in new equipment and the ‘a perfect match’. Smith explained that hydrofluoroolefins (HFOs) industry – develop new skills.
12 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp12 News.indd 12 21/10/2016 13:16 ARKTIK offers a diffuse and subtle Add in the rated component life of RIDI ARKTIK leads light source, with none of the normal up to 50,000 hours and the potential harshness expected of LED luminaires savings are obvious. the way with more light designed for commercial spaces. Smart systems show the way to from fewer luminaires. Inspired by the energy-enhancing even greater savings. and stimulating light found in the Arctic ARKTIK is compatible with RIDI’s highly regions, ARKTIK emits a quality of light efficient, IP-based control system. that increases alertness, well-being This can be controlled from your smart and productivity for all those who work phone and autonomously monitors beneath it. ambient light and occupancy levels. The multiprismatic central diffuser and 5-star service frosted wings establish shadow-free, even light distribution. A choice of Our experienced Technical Advisors warm or cool light maximises visual will guide you at every stage of your comfort for the end user. project, optimising the performance of your system to suit your needs. With ARKTIK, fewer luminaires They’ll show you how ARKTIK can mean lower costs. deliver a better quality of light at the Careful design gives greater output same time as lower costs. from fewer LEDs. This translates to wider coverage which, in turn, means Featured is the PSQ version of ARKTIK. fewer luminaires and less cost. This is one of 4 versions available – see website.
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www.cibsejournal.com November 2016 CIBSE Journal 13
p13_CIBSEMagNov16.indd 13 17/10/2016 12:02 CIBSE NEWS Tel: 020 8675 5211 | Fax: 020 8675 5449 | Email: [email protected] President: John Field CEng FCIBSE | Chief executive: Stephen Matthews
BSERT Journal CIBSE and ASHRAE sign focuses on U-values and overheating historic joint agreement The difficulty of predicting cooperation between overheating and the G Organisations mark 40th ASHRAE chapters and CIBSE consequences of making the wrong assumptions anniversary by agreeing regions, coordinating the about U-values are two of the greater collaboration programmes of similar issues addressed in the latest groups – such as Women issue of the Building Services CIBSE and ASHRAE have in Building Services Engineering Research & signed a partnership Engineering (WiBSE) and Technology (BSERT) Journal. agreement to mark the Women in ASHRAE (WIA) – A paper by M E Eames 40th anniversary of their aligning activity for young demonstrates a method relationship. engineers , and working of creating probabilistic The organisations met together on topics such as design summer years (DSYs), in London to implement legionella, resilienc e and containing overheating events, that can be used a range of initiatives , ASHRAE president Tim Wentz (left) cyber security. to inform designers of the including: working together and CIBSE President John Field John Field, CIBSE overheating risk. strategically on projects President, said: ‘This is an The paper on retrofit solutions in each other’s regions; unprecedented opportunity for solid-wall dwellings in creating a staff -exchange their mutual global interests , to spread the benefi ts of our England, by Loucari et al, found programme; encouraging and agreed to a range of work together, through every that uncertainties in the solid- collaboration between activities and goals to promote level of our organisations. ’ wall U-value could lead to a regions, groups and chapters; a more sustainable world. Tim Wentz, ASHRAE president, gap between anticipated and and mutually promoting the A s well as a commitment added: ‘Collaboration and actual energy performance. publication of new codes and to improve knowledge sharing of knowledge are BSERT is available free to standards. sharing – including jointly key to advancing the built CIBSE members at www.cibse. org The journal covers energy CIBSE and ASHRAE have presenting work to industry, environment industry.’ and environmental services in work ed closely together for members and legislators – the For a report on the CIBSE / buildings, including: heating, four decades, but this is the fi rst organisations have agreed to ASHRAE seminar marking ventilation, air conditioning, time they have committed to work at a grass-roots level. the 40th anniversary of their electrical services, acoustics, a joint approach to promoting This includes encouraging relationship, see page 32. water supply and sanitation, and vertical transport.
Podcast tackles Institutes come together to indoor air quality promote excellence in industry This month’s Build2Perform podcast focuses on indoor CIBSE has signed a memorandum of understanding air quality: what is it, why it’s with the Institute of Refrigeration (IoR). The important and what engineers document forms an agreement to commit can do about it. The podcast features to working together to develop and promote sustainability consultant Julie excellence in the refrigeration, air conditioning and Godefroy and Alan Fogarty, heat pumps aspects of building services. of Cundall, both experts in air CIBSE members who register on the IoR website quality, and you can access it will get access to specifi c publications at IoR from the CIBSE soundcloud at: member rate, and an open invite to attend national, soundcloud.com/cibse-admin regional or special interest group events, also at IoR The latest CIBSE blog features member rates. Mat Colmer, built environment The organisations will also cooperate on new specialist at the Digital Catapult publications, and develop joint publications. Centre, and Nick Winser CBE, chair of the Energy Systems CIBSE and the IoR also signed a registration Catapult. Both will be speaking agreement, which enables eligible members of at this year’s CIBSE Building the IoR to join the Engineering Council (EngC) (Clockwise, from left) John Field, CIBSE President; Miriam Rodway, Institute of Refrigeration chief executive; Stephen Performance Conference. Visit register, at the appropriate level, via CIBSE’s license Matthews, CIBSE chief executive; Stephen Gill MCIBSE, www.cibseblog.co.uk from the EngC. Institute of Refrigeration president
14 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp14-16 Cibse News.indd 14 21/10/2016 13:17 CIBSE NEWS
TÜV SÜD Wallace Whittle shines at Employer of the Year awards
Beverly Quinn accepts the Employer of the each year to undertake further Year award from CIBSE President John Field G Firm has staff development education – covering fees and on behalf of TÜV SÜD Wallace Whittle scheme involving school- supporting study time – employs leavers and graduates students for summer placements and provides work experience for Atkins, Method Consulting and upper school-aged children. TÜV SÜD Wallace Whittle were Method Consulting claimed recognised for their exceptional the small employer category. commitment to supporting The firm puts young engineers and mentoring newly qualified at the heart of its business, engineers at the Employer of the believing training and support Year Awards 2016. The winners of are necessary to maintain skills, the accolades were announced and to increase staff motivation. to a full house at the Institution of Employees are encouraged Mechanical Engineers (IMechE) to dedicate a day each year to in October, as part of the wider a project that improves their CIBSE Young Engineers Awards. Atkins won the large ‘The firm draws employer category, showing its from the widest commitment to young engineers with the 300 graduates and 80 possible range of apprentices who joined them last candidates’ year. Employees in the early stages of their career are supported community or to run a charitable by several staff members, and event, and Method has two STEM encouraged to drive their own Ambassadors. development through training TÜV SÜD Wallace Whittle’s and work opportunities. programme earned it the Anthony Bursey picked up the small Sarah Pusey accepted the large Last year, more than 500 overall prize. The judges said: employer award for Method Consulting employer accolade on behalf of Atkins of Atkins’ STEM ambassadors ‘It demonstrated excellent interacted with over 350 schools, community engagement and hosting a building services after- proved it draws from the widest school club. possible range of candidates.’ TÜV SÜD Wallace Whittle came The Employer of the Year top in the medium-sized employer Awards are sponsored by Andrews category, and took the overall Water Heaters, Ruskin Air champion crown. The firm aims to Management and Waterloo Air ensure young engineers – who are Products, and supported by the each allocated a mentor – work CIBSE Patrons. on a variety of projects and cover The IMechE Construction and IMechE president Jon a range of technical learning skills. Building Services Division award Hilton (left) and Doug Ward It also sponsors up to four juniors was given to Doug Ward FCIBSE.
The Employer of the Year award winners and sponsors
www.cibsejournal.com November 2016 CIBSE Journal 15
CIBSE Nov16 pp14-16 Cibse News.indd 15 21/10/2016 17:56 CIBSE NEWS
Humidifying the UK New members and fellows
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Specialist advice and system design CIBSE puts the call out for volunteer referees
The Technical Symposium team email [email protected] will shortly commission around The CIBSE ASHRAE Technical 70 authors to submit papers or Symposium will take place posters – all of which will need on 5 and 6 April 2017 at to be peer-reviewed – so CIBSE Loughborough University. is seeking volunteer referees to For more information about Dedicated humidier spares department help with this task. the event, visit the website Any members or fellows www.cibse.org/symposium willing to review papers should contact us, and include a few 2016 symposium Contact us for free expert advice words about their areas of Tel: +44 (0)1903 850 200 technical expertise. Email: [email protected] As well as helping to ensure Web: www.condair.co.uk the papers to be presented are of a high standard, referees will have a chance to find out about some of the Humidication and developments that will be Evaporative Cooling presented at the event. If you are interested, please
16 CIBSE Journal November 2016 www.cibsejournal.com
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www.cibsejournal.com November 2016 CIBSE Journal 17
p17_CIBSEMagNov16.indd 17 17/10/2016 12:04 OPINION
Feedback of their environmental and health Why a cost-benefit analysis should pay more attention to impact benefits instead. on the environment – and CIBSE’s LinkedIn Group responds to Lara Gill Geoff Prudence’s #Build2Perform blog on building performance On point with Hinkley Point C In a topic with as much vested Numbers game interest and spin around it as this, I’ve recently read texts from outside choose your words wisely. Hinkley the building services mainstream Point C will meet 7% of Britain’s – including Post-Capitalism by Paul electricity needs, not ‘energy needs’ Mason and The limits of Neoliberalism (CIBSE Journal, October 2016). It will by William Davies – and it got me meet just over 1% of primary energy thinking about economics and demand. Quite a difference. cost-benefit analysis, and whole-life Steven Wallman, engineer at costing of different technologies. Skelly and Couch When I was doing these calculations I thought I was just dealing with numbers – and, as an CIBSE LinkedIn Group engineer, I love numbers. But in discusses the case for economics, numbers don’t play by FMs as guardians of the rules of physics; they play by the rules of the market, which is neither building performance constant nor unbiased. (from #Build2Perform Here is a thought experiment: blog bit.ly/2cejz6D) What if an oil company discovered an oil field that was very expensive Geoff Prudence: BIM would back up the FM’s decisions with actual data to access, but contained an infinite Geoff Prudence FCIBSE supply of oil. Would it drill? to frack even Yorkshire is an As the people running the building I think it would have the following impossibility. many years after it is finished and qualms: If the supply is infinite, When I was carrying out my handed over, facilities managers won’t the price of oil tend to zero? cost-benefit analysis of installing In (FMs) are the guardians of its How would it recoup its investment renewable energy technology for economics, performance throughout its life. in getting it out? What would it do building projects – and calculating The FM knows the management to the profitability of all its other the future cost-savings clients could numbers strategies they favour to get the most oil wells? If everyone knows its an make – I wasn’t thinking about don’t play out of a building, so they should be infinite supply, won’t they get a bit this. Nor about how politically by the rules implementing these at the very start antsy about a corporation declaring charged the numbers I was using of physics; of a project, rather than working control over it? were (renewable energy costs being they play by around what already exists when they I think the company would pretend based on government subsidies and the rules of move in. it had never found the field, and conventional energy costs being A fantastic tool that can be used the market make sure nobody else could. based on stability – or the lack of – to make this dream a reality is This seems to be our global in the Middle East, and how much building information modelling attitude to renewable energy as we are prepared to frack in our (BIM). Nobody knows the day-to-day generated, ultimately, by the sun, own backyard) and how useless it realities of running a building better which guarantees an almost infinite rendered the numbers I generated. than FMs, so they should be pushing supply (four to five billion years). In discussions with clients, I wish to have much more input into the Economic modelling can’t handle I had explained how nonsensical model – making sure it is designed disruptive technology or the concept it is to try to compare renewable for every day of the next 60 years, not of an infinite supply – infinite growth energy and conventional energy just for handover. FMs also need to of demand being the lifeblood of costs. Maybe that would have stopped ensure that the information being fed our economy – therefore pricing them from focusing so much on into models is what they need – for renewable energy so it is comparable their bottom line, and got them to example, standard classifications for to oil or gas when we are planning select building solutions on the basis plant items and the maintenance that
18 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp18-19 Letters.indd 18 21/10/2016 13:20 CIBSE Nov16 pp18-19 Letters.indd 19 www.cibsejournal.com the BMS/controls are. work effectively, no matter how good system is uncontrollable, it will not inappropriate plant selection. If the are poor hydraulic system design and published guidance. Often, causes understood and there is little experience, but it is not well performing buildings in my fundamental reasons for poorly more fundamental issues. performance, but cannot resolve beneficial in maintaining building good housekeeping can be very installation instructions. may be buried in the depths of the the devil is in the detail, which characteristics change and, often, FMs – and FMs can delegate. Plant are exceptions – before I upset all replacement plant. I’m sure there and select the most appropriate to analyse building performance FMs with the technical experience In my experience, there are few Graham Smith FCIBSE time, which may or may not be paid. complete projects will need to input that people with the knowledge to In Britain, there is an expectancy within my contractual remittance. challenged with duties that were not Approximately Randolph Lemke changing needs of the building. complex, interdependent and ever- be used to inform changes to the the FM with actual data, which could BIM would back up the decisions of they require. In this role, the use of the rightto editallletters. Road, CambridgeCB58PB,UK.We reserve CPL, 1CambridgeTechnopark, Newmarket or write to: Alex Smith,editor, publication to: [email protected] Please sendallmaterial for possible proposals for articles. opinions, news stories, events listings, and CIBSE Journalwelcomes readers’ letters, Controllability is one of the Ongoing BMS data analysis and 20 years ago, I was CIBSE Journal,
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21/10/2016 13:21 19 OPINION
THE DECADE WITH A FLAIR FOR INNOVATION
The 1970s was not just about slide rules and clunky LED was to become the CIBSE Building calculators, says Mike Holmes FCIBSE, but an age of innovation Energy Code and could be thought of as a forerunner of the Simplifi ed Building that led to the development of the software tools we use today Energy Model (SBEM). Aside from the widespread use I believe the article ‘History descendent of DOE2 and Blast. of computers , I suspect t he other lesson’ (CIBSE Journal, There was concern over the signifi cant difference between now and October 2016) hardly refl ects the accuracy of these tools – a cause then is that – in the70 s – the design was real 1970s [from a technology point taken up by the International Energy much ‘closer to the numbers’. of view]. The PC may not have Agency through its Building and The need for standardisation of arrived, but the industry was using Community Systems programme. weather data was apparent and, after computers, albeit slow mainframes The fi rst investigation was an some studies I carried out at Bsria, the driven by punch tape and card international collaborative project , CIBSE weather data panel was set up. terminals. Some fi rms possessed Annex 1 , to compare predictions This was again driven by industry – in-house machines, whereas others made by numerical simulation tools. British Gas, W S Atkins, Oscar Faber used agencies. At Bsria, for example, I Perhaps with the exception of TAS, all and Bsria – and has result ed in the was doing an investigation into the previously mentioned programs CIBSE Test Reference Years and Design numerical methods for the simulation were examined. Unsurprisingly, Summer Years used today. of HVAC systems using the computer Excluding there were large differences. This le d Excluding visualisation tools, the only power available through Honeywell. visualisation, to further investigations , including signifi cant analytical tool not available Desktop calculators were also the only comparison with the performance of a in the 70s was computational fl uid more sophisticated than suggested; analytical real building in Glasgow. Without the dynamics (CFD) although the seeds at Bsria, Steve Adams and I used a tool not sophisticated data-logging equipment for its widespread use were being set programmable handheld Hewlett that is available today, however, this task through the Teach-T tool developed Packard calculator to develop a available proved over-ambitious. by Brian Spalding at Imperial College. numerical model of the dynamic in the 70s The Building and Community This code was available to all and response of cooling coils (program and was CFD Systems programme is still with us , formed the basis of many developments data stored on small magnetic strips). involving researchers and industrialists in the following years. This was the decade in which today’s from numerous countries . I believe they The zonal – or network airfl ow – software tools fi rst emerged. Funded are up to Annex 40-something. model did exist, however. At Bsria, through a Scientifi c and Engineering In the 1970s, there appeared to be the late Nigel Potter was predicting Research Council programme, little interest in these activities within the general movement of air through Professor Joe Clarke developed ESP-r at the IHVE, which was developing a hospital wards located around the University of Strathclyde – I believe manual technique for the calculation courtyards. The approach will be one of the researchers was a young of building energy consumption. This familiar to many today in that a wind Don McLean . At Cranfi eld University, tunnel model was used to obtain meanwhile, an early version of TAS was surface-pressure coeffi cients, allowing being develop ed. prediction of the combined wind- and Industry was also active . At Oscar buoyancy-driven airfl ow pattern within Faber, John Quick and Steve Irving were the building. working on a program called APACHE The 70s was a time when signifi cant – now evolved into part of the IES suite. research projects were being At Arup, the late John Campbell was undertaken by academia and industry, developing programs to size plant and and when the development of the calculate the energy consumption of tools we now use was in its infancy. complete buildings. Because of the time One has the feeling that there are few required for such analysis, Campbell developments taking place now that will used an innovative application of what have the same impact in 40 years’ time, was then the Institution of Heating and that industry no longer has the and Ventilating Engineers (IHVE) appetite to drive the research. admittance method. At the same time, 2 ● MIKE HOLMES Hon FCIBSE is in the U SA , DOE , Blast and Trace a consultant at Arup came into being. Energy+ is a direct IBM 1402 punch-card reader
20 CIBSE Journal November 2016 www.cibsejournal.com
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www.cibsejournal.com November 2016 CIBSE Journal 21
p21_CIBSEMagNov16.indd 21 17/10/2016 12:05 OPINION: REGULATIONS
ZERO LONDON
There was much angst last year when the Cameron government abandoned its commitment to zero carbon homes. However, since last month, the London Plan requires new residential developments in the capital to be zero carbon. Hywel Davies discusses the impact XIUFU CHEN / SHUTTER S The Housing and Planning Act CO2 emissions relative to Part L 2013 made changes to legislation through onsite measures, and the covering local authority and social remaining emissions are off-set through housing, and addressing rogue a cash payment to the relevant borough.
landlords, with the aim of improving This will be ring-fenced to secure TO CK the supply of homes. There was also an delivery of CO2 savings elsewhere. unsuccessful attempt to attach a new Technical implementation of this commitment to the 2016 trajectory for policy should be in line with the Mayor’s ‘zero carbon’ homes – first adopted in Energy Planning: GLA Guidance on 2007 – which attracted many headlines. preparing energy assessments (March But changes to carbon emissions targets 2016). The Mayor’s Housing Standard’s in the London Plan – which now Viability Assessment assumed a carbon requires major new residential offset price of £60 per tonne of CO2 for a developments to be zero carbon – have 30-year period and, if this figure is used, attracted far less comment. it will not be necessary to carry out a The Plan has been in place for some Could the GLA affect national policy? further viability assessment of the policy time, but it – and the more recent approach – or is that possible? supplementary planning guidance, ● Calculation of energy demand and The supplementary guidance also published in March 2016 – may have CO2 emissions covered by Building addresses overheating, noting that slipped past some, unnoticed. Regulations and, separately, from more energy efficient homes may David Cameron’s government any other part of the development, be at greater risk of this, and that an abandoned the zero carbon homes London, including plant or equipment not assessment of the risk is required. policy in June 2015, but recent reviews arguably, covered by the Building Regulations, The guidance explicitly references of the London Plan have tested the drives the at each stage of the energy hierarchy CIBSE publications TM52 The limits continued inclusion of this requirement UK economy ● Proposals to reduce emissions of thermal comfort and TM49 Design in the document, and it has been in many through energy efficient design of the Summer Years for London, saying they shown to meet the necessary viability ways. So will site, buildings and services, through ‘can assist designers to take these requirements. So, for the capital at least, the use of decentralised energy – such considerations into account, alongside 2016 is the year of zero carbon housing. the London as district heating and cooling, and other industry guidance’. Planning Policy 5.2 requires Plan become combined heat and power (CHP) With Building Regulations already development proposals to make the the driver where feasible – and to cut emissions devolved to the four home countries, fullest contribution to minimising of Building through use of onsite renewable it is arguable that the London Plan carbon dioxide (CO2) emissions in Regulations? energy technologies offers a fifth devolved set of regulations accordance with the following hierarchy: ● Where it is clearly demonstrated that in all but name. The capital drives the ● Be lean: use less energy the specific targets cannot be fully UK economy in many ways – so will ● Be clean: supply energy efficiently achieved onsite, any shortfall may be the Plan become the driver of Building ● Be green: use renewable energy. provided offsite or through a ‘cash Regulations, especially if Wales and It also commits the Mayor of London to in lieu’ contribution to the relevant Scotland seek to follow the GLA – ‘work with boroughs and developers to borough, to be ring-fenced to secure and not the English – regulations in ensure that major developments meet CO2 savings elsewhere. Guidance is future? In this area, we already live in the following targets for CO2 emissions available on offsite carbon offsetting, interesting times. reduction in buildings’. The target for based on a report for the Greater References: residential buildings is zero carbon London Authority (GLA) by the 1 Review of carbon offsetting approaches 2016 1 from . The policy requires major National Energy Foundation. in London, the National Energy development proposals to include an Zero carbon homes form part of major Foundation, June 2016. bit.ly/2dDHADP energy assessment demonstrating how development applications in which ● HYWEL DAVIES is technical director at the targets are to be met on site, with at the residential element achieves at CIBSE www.cibse.org least the following details: least a 35% reduction in regulated
22 CIBSE Journal November 2016 www.cibsejournal.com
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www.cibsejournal.com November 2016 CIBSE Journal 23
p23_CIBSEMagNov16.indd 23 17/10/2016 12:06 OPINION
BUILDING ON BREXIT
The consequences of the EU referendum risk our ability to deliver ability to deliver a sustainable and innovative built environment are: a sustainable and innovative built environment. Julie Godefroy G Long-term R&D strategies: The UK presents her manifesto for a post-Brexit low carbon Britain is the second-largest participant – and has the four largest recipient Have you heard of the UK’s uncertain, ranging from limited – with universities – in the EU’s Horizon Building Renovation Strategy? I the UK remaining in the European 2020 research programme.9 The, had not until recently. It is a Economic Area and having to abide by financial shortfall will need to be requirement under the EU Energy many of its rules and legislation without addressed We need Efficiency Directive, which is part of a influencing them – to a complete G Skills: EU nationals represent about plan to decouple energy consumption separation. This is where some of the to attract 5% of the UK population10, but make from economic growth and achieve a risks to sustainability lie. Environmental students to up about 20-30% of the workforce in 20% reduction in energy use by 2020.1 and health and wellbeing improvements engineering construction and design firms. We The UK’s first version of the strategy, in often rely on long-term objectives, where degrees if a need to attract students to engineering 20142, was considered to be less than policy is developed to take account future supply degrees and develop apprenticeships satisfactory. It should be revised by April. of needs and interests beyond short of EU workers if a future supply of EU workers Meanwhile, the EU Circular electoral cycles. Some issues are local; cannot be cannot be relied upon. Economy package was expected to others need wider geographical action relied upon CIBSE is responding to the inquiry into start having a positive impact on and collaboration. What we know can the implications of Brexit on energy the construction sector, which is be summarised as follows:4, 5 policies11 and we should make our views responsible for half of the UK’s total G The UK is often credited with being heard. Here is my wish list: waste.3 It includes proposals for waste a driver of EU policy on carbon G Post-Brexit regulation to take account recycling and diversion from landfill, emissions. The 2008 Climate Change of our environment and quality of as well as for waste reduction at source Act legally binds government to an life. These should be seen as an through efficiency and product design. 80% reduction by 2050, which goes opportunity to remain competitive in However, because of Brexit its UK beyond EU policy. The Fifth Carbon Europe and beyond rather than as a implementation is now in doubt. Budget was adopted as one of the barrier to short-term growth EU legislation is not perfect. Some last decisions of David Cameron’s G Retained long-term carbon objectives, perceive it to be forced onto member government. However, the EU has with intermediate targets to hold states, poorly written and difficult to led on renewable energy and energy successive governments to account implement. Sometimes it is behind efficiency, and Brexit may affect this G Reinforced energy efficiency strategy; UK best practice – but it illustrates the G The EU is considered to have had a retained MEES, which have started to benefits of long-term objectives. In positive influence on environmental drive improvements; DEC expanded the context of the past few turbulent topics, including air and water quality, to commercial buildings; reduced months, it is difficult to imagine such and habitats. The problem is often VAT for refurb and energy efficiency a trajectory of stability, especially as the with national implementation. The works – the discrepancy can no longer Prime Minister has not been shy in UK is being taken to court for failing be blamed on EU rules revisiting her predecessor’s positions – to develop a satisfactory air-quality G Action on air quality – for example, on Hinkley Point and grammar schools. strategy to meet EU objectives.6, 7, 8 new buses to be electric, restrictions The consequences of Brexit are Two other issues likely to affect our on diesel generators, and provisions in Building Regulations. Air quality Look familiar? is estimated to contribute to at least Better air quality could save the NHS 40,000 deaths, and cost £8-20bn, per £350m a week year.12 This is more than £350m per week – which could, in part, be saved for our NHS. This just happens to be close to THAT campaign bus slogan. JACK TAYLOR / GETTY IMAGES ● References are available at www.cibsejournal.com
● JULIE GODEFROY is an independent sustainability consultant
24 CIBSE Journal November 2016 www.cibsejournal.com
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www.cibsejournal.com November 2016 CIBSE Journal 25
p25_CIBSEMagNov16.indd 25 17/10/2016 12:07 OPINION
ENGINEERING OUR POST-BREXIT FUTURE
Four months after the EU referendum, Peter Rolton, chair manufacturing production increased of Rolton Group, urges the UK engineering sector to face during August at its fastest pace for seven months, according to the latest the post-Brexit challenges head on fi gures. But infrastructure spending has reduced by 20% since the referendum. Theresa May’s message that EU funding, so the UK’s strategy David Davis and the Department ‘Brexit means Brexit’ couldn’t be should include actions to counter this for Exiting the European Union will clearer. The UK Prime Minister’s words probable negative effect. Although the need to produce a holistic strategy signalled an end to the limbo period that government has promised that any EU that integrates industry and business surrounded the EU referendum and We must funding secured before Brexit will be into the wider plan for our exit from encouraged a move towards a more grasp this covered , this is a huge undertaking.2 the union. The building services proactive phase, in which we need to opportunity Leaving the EU may also restrict our engineering sector will need to play take control of our own destiny. to cement attractiveness to global manufacturers, its part in re inventing the UK for this As the government edges closer our place in many of whom have regarded the new economy, to secure the resources 50 to triggering Article of the Lisbon the global setting up of operations in the UK as an it needs for future success. We must Treaty – which will begin a two-year opportunity to tap into our engineering grasp this unique opportunity to cement countdown to the UK’s exit from economy excellence, and as a gateway to business our place in the global economy and the EU – where does this leave the and establish with the rest of Europe. There is establish our own rules and agenda. engineering industry? It is going to have our own little to prevent engineering giants The UK is still a signifi cant player and to come to terms with new regulations rules and from moving to mainland Europe, to a major part of Europe. By maintaining and standards, if those set out by the agenda continue receiving the benefi ts they had positive and open relationships with our E U are no longer to be adhered to. For previously enjoyed in Britain. continental neighbours, we can ensure building services engineers, the level To counter this, the UK must stay the engineering industry continues to of legal complexity prompted by Brexit competitive among its peers so that it thrive, while retaining our place on the is unprecedented – especially in the remains a leading destination for new world stage. areas of environmental and energy- manufacturing facilities. Another issue management law – with an estimated is the shortage of skilled labour in the References: 40,000 items of legislation affected.1 engineering sector. We have an annual 1 The meaning of Brexit, July 2016, CIBSE Journal, http://bit.ly/2eddwiF The UK must remain mindful of how shortfall of 69,000 workers3 and this may 2 Brexit: Government guarantee for post- EU legislation may affect its dealings be exacerbated if there are restrictions EU funds, August 2016, BBC with our continental neighbours. Any o n people’s freedom of movement . http://bbc.in/2eAKojn new UK-centric legislation must also be There have been mixed post-Brexit 3 At a glance, Engineering UK Report 2016, forward thinking, to ensure we do not results across the construction, EngineeringUK, http://bit.ly/2eOq6Xq lose our place among the global elite for manufacturing and services sectors ● PETER ROLTON is chair of engineering innovation and technology. Research from the Purchasing Managers’ Index. consultancy Rolton Group and development could suffer without After the initial productivity slump,
26 CIBSE Journal November 2016 www.cibsejournal.com
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p27_CIBSEMagNov16.indd 27 17/10/2016 12:08 WINNER TAKES IT ALL Antoni Sapina Grau, of WSP Parsons Brinckerhoff, impressed the judges with his show of juggling to be named Graduate of the Year 2016 and win a trip to Las Vegas
ntoni Sapina Grau, of WSP president Tim Wentz, who gave his own Parsons Brinckerhoff, has talk. The judges included chair Tim Dwyer, been named the 2016 CIBSE and last year’s winner of the graduate award, ASHRAE Graduate of the Year. Ryan Rodrigues. AHis talk on digital engineering was voted the Entrants had to respond to the following best presentation by a panel of five judges at question: ‘Computers and digital technology the CIBSE Young Engineers Awards, held are transforming the way engineers work. at the Institution of Mechanical Engineers What impact do you think this is having on (IMechE) headquarters in central London. innovation, professionalism and traditional Grau’s prize is a trip to Las Vegas for the engineering skills?’ 2017 ASHRAE Winter conference. In his presentation, Grau explained how The Employer of the Year Award winners engineers were adapting to new technology. were also revealed at the ceremony, with the He showed an engineer juggling three overall accolade going to TÜV SÜD Wallace balls, representing a slide rule, a 3D Whittle. It also won the medium-sized drawing and a drawing board. One by one, employer category, in which 2014 winner the balls were replaced by CAD software, JUDGING PANEL Max Fordham was runner-up. building information modelling (BIM), Judges for the Graduate Award: Atkins was named large employer of the and a laptop. Grau also explained how I John Field, CIBSE President year – with Hoare Lea as runner-up – while increased knowledge gives engineers a I Jon Hilton, IMechE president Methods won the small employer category, technical understanding that transcends I Tim Wentz, ASHRAE president I Ryan Rodrigues, Graduate of the with QODA Consulting runner-up. (See national borders. Year 2015 page 15 for more details). After being presented with his award I Tim Dwyer, CIBSE ASHRAE Group In his winning presentation Grau Grau said: ‘I feel I have achieved something, chair explained how the digital revolution was but the best is yet to come. I now have a Judges for Employer of the Year: changing the engineering profession responsibility to work harder and harder. It’s I Ant Wilson, Aecom through a series of ‘stories’. not the end – it’s the beginning.’ I Deborah Pullen, BRE Each finalist had to give a five-minute Grau joined WSP Parsons Brinckerhoff I Susan Hone-Brookes, Laing O’Rourke presentation to an audience that included as a graduate engineer, having obtained I Chair, Ewen Rose CIBSE President John Field and ASHRAE an MSc in building services engineering
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CIBSE Nov16 pp28-29 YEN Awards.indd 28 21/10/2016 17:59 AWARDS GRADUATE OF THE YEAR CREDIT: Simon Weir
I now have a responsibility to work harder and harder. It’s not the end – it’s the beginning
Grau with ASHRAE president Tim Wentz
Finalists: (from l-r): Richard Garthwaite; Farai University/Hoare Lea; Richard Garthwaite, Mwashita; Scott Mason; Antoni Sapina Grau; University of Durham/Royal School of Katie Ewing; Monica Mondelo Madrigal; Samantha Carlsson and Samima Saqib Military Engineering; Farai Mwashita, Loughborough University/Hilson Moran; with sustainable energy. He qualified as a Samima Saqib, Heriot-Watt (Dubai); and Breeam Associate, Low Carbon Consultant Monica Mondelo Madrigal, Universidad and LCIBSE, and was part of the team that Politécnica Madrid/Foster + Partners. won this year’s Teambuild Construction The event also featured a presentation Competition UK. by Doug Ward – director of estates and Katie Ewing was Grau was one of two Spaniards in the facilities management at Newcastle upon awarded second place final, which featured eight engineers from Tyne Hospitals NHS Foundation Trust all over the world. – who won the IMechE Construction The judges awarded second place to Katie and Building Services Division (CBSD) Ewing, of the University of Bath and Atkins, Special Achievement Award. Ward and third place to Scott Mason, Lochinvar’s outlined the outstanding work done by UK senior technical sales engineer for engineers in hospitals that ‘kept people integrated renewable solutions. They won alive’, and explained how important it £500 and £300 respectively. The five other was to have a robust system of electrical finalists were: Samantha Carlsson, Cardiff power distribution. ASHRAE President Wentz also gave a Scott Mason took third talk, during which he told the audience place in the competition that construction was on the cusp of a golden age, as the industry could build more holistically and sustainably than ever before. He said technology would ‘redefine the concept of engineering and enable true integrated design’. Wentz added that ASHRAE would lead improvements in buildings by recording performance using its energy labelling programme, Building Energy Quotient (BEQ). CJ
● CIBSE, ASHRAE and IMechE support the CIBSE Young Engineers’ Awards 2016, which are sponsored by Andrews Water Heaters, Ruskin Air Management and Waterloo Air Products. The Grau showed how engineers awards also receive support from the juggle new technologies CIBSE Patrons.
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CIBSE Nov16 pp28-29 YEN Awards.indd 29 21/10/2016 13:48 PEOPLE POWER Health and wellbeing is a major theme at this year’s CIBSE Building Performance Conference and Exhibition, so we asked six speakers how buildings can be improved for occupants
he 2016 CIBSE Building the benefi ts of low operational costs and a Performance Conference and stable environment. Lighting design and Exhibition will bring together more temperature controls are some of the most than 40 expert speakers to showcase important things to think about when Tthe latest th inking on the subject, and help designing or retrofi tting a building. Users engineers to deliver and maintain high- should have some level of control over their performing buildings. environment and the systems need to be The event – at the QEII Centre in easily maintained. Westminster, on 17-18 November – is a chance for professionals to meet, learn and Andy Ford debate critical issues facing the industry, from Professor of systems health and wellbeing to maintenance and engineering in the The fi rst step towards operational performance. built environment, improving buildings is to get Sessions will include: outlook for building London South Bank the basics right – bean bags performance; digital engineering and building University and table football won’t cut services; achieving performance in use; air As an occupant, a quality – impact on health and wellbeing; perfect building is one the mustard if the heating, collaboration for better performance; refurb + I delight in visiting every day. Anything that cooling, lighting and IT retrofi t; and innovation in buildings. takes away from this is something that needs infrastructure fail to deliver to change. – Sarah Ratcliffe Lucinda Lay Most of the building design processes I have Carbon reduction experienced to date are about how to make projects manager, things work well enough. We need to go a step University of Oxford beyond this. The issue of making buildings Design sustainably for work has a tendency to be approached as a adaptability, remove complicated, technical problem, dependent on redundancy and keep sophisticated control of increasingly complex it simple. There are systems. I challenge this. two types of occupant : building users and As an occupant, I want to go into a building building managers. Facilitate the needs of thinking ‘this is great’, and enjoy the time I the managers and the needs of the users will spend in it before leaving, feeling uplifted, fall into place. and knowing the building makes a positive One of the biggest improvements that contribution to the built environment. can be made is to simplify and centralise I don’t want to spend any time looking the building systems, allowing them to for, and understanding , controls, listening to be controlled and optimised easily, with machinery – be it fans, chillers or automated
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CIBSE Nov16 pp30-31 Conference preview.indd 30 21/10/2016 14:19 CIBSE CONFERENCE SPEAKERS ROBERT ADRIAN HILLMAN / SHUTTERSTOCK where money matters? If one looks deeply restrictions within which most people have enough, a virtuous win-win-win cycle exists, to live. We cannot expect to overprovide while because well-designed, high-quality buildings staying within strict budget constraints, but – offering the best possible human comfort we probably can do much more with the levels – also use less energy and deliver value opportunities presented to us. through higher productivity and reduced Modern IT is now releasing us from all the sickness. So the next question is: why do we previous constraints of being wired to a desk, often struggle to make these improvements? yet we are still designing spaces based on conventions from decades gone by. We need Alex MacLaren fl exible spaces that can quickly change from Professor in meeting space to work space, to recreational architectural space, and allow freedom of movement design, Heriot-Watt depending on where we choose to work. University It would be wonderful to see an increase Buildings can in the use of outdoor space for conventional be improved for study and learning. Intelligent use of occupants through covered – yet open – spaces can be integrated responsiveness and feedback. I want to be to a far greater extent than is delivered able to interact with my habitat, and I want my currently, allowing people to step outside habitat to be able to respond to changes in my their, often claustrophobic, work space or demands – and, with increasing urgency, the even hospital bed. changing demands of the climate and context. Contemporary society expects intuitive Sarah Ratcliffe interfaces and ease of access to knowledge Programme director, shading or natural ventilation, opening and and data. Too many buildings subjugate Better Buildings closing systems. I want to walk in at any time their users by restricting control over their Partnership of year and feel great. environments. I want to choose to throw open Often, the fi rst This means developing skilful, integrated the window and howl into the cold rainy night response is to think designs of buildings that merge architectural if I wish. But it also means understanding the about new trends, creativity with engineering knowledge of implications of my outburst – in seeing the innovations and the comfort, psychology and building physics heating demand and humidity of my internal latest fads – but, for me, the fi rst step towards to engineer ‘delight’, eliminating systems environment immediately rise. I’ll understand improving buildings is to get the basics right. – where possible – and seeking passive, the consequences of my actions, and I’ll still Bean bags and table football won’t cut the responsive solutions that work without have a choice. This makes me informed and mustard if the heating, cooling, lighting and intrusion. We need architectural engineering empowered – and a happier person. IT infrastructure fail to deliver. So we need to be reality. In a world where technology now supports to design for performance, commission – affordably – real-time accurate data feedback well, and monitor and manage to deliver the Matt Fulford in multiple, complex ways, we have no excuse performance that the occupant expects. Director, Inspired for not engaging with that. Every occupant is unique, so we need to Effi ciency Post-occupancy evaluation should be the engage with them to understand their needs Buildings exist to preserve not of academic research, but of and priorities and make sure the building provide comfort everyday interaction between user, building refl ects these. This can also save time, cost for their occupants, and facilities manager; it must be considered and waste; there is no point in fi tting out a so a logical way to a key source of knowledge and inspiration for building to a high-spec only to discover the improve buildings the design team. occupant has ripped out everything and is to boost the occupant comfort they deliver. replaced it to conform to their own fi t-out The complexity comes in understanding what Neil Lewis requirements and branding. elements contribute to comfort. Managing director, Our understanding of what occupants Evidence highlights such areas as good Waterman Building need is changing all the time, but creating levels of air quality using natural ventilation; Services places where they can be happy, healthy high levels of daylighting with an external Choice is one of and productive is one way to help us think view; some control over thermal comfort; and the most important differently. Improving the physical fabric buildings that promote activity. So the simple factors for a feeling of of the building can contribute to this – for answer, perhaps, is an openable window, a wellbeing. Even in a example, by incorporating green walls to thermostat and a few fl ights of stairs for great offi ce or place of learning, an individual improve air quality – but the social fabric is every occupant! starts to feel trapped and restricted if, day also becoming increasingly important. T o There are two other interesting after day, they are forced to sit in the same improve buildings for occupants, we don’t just considerations : does all this come at a cost or space, looking at the same view and unable to need the technical skills – we need the skills to benefi t to the global environment, and how infl uence their environment. engage with people too. CJ do we make this work in a capitalist society Cost, of course, plays a big part in the ● Book your place at www.cibse.org/conference
www.cibsejournal.com November 2016 CIBSE Journal 31
CIBSE Nov16 pp30-31 Conference preview.indd 31 21/10/2016 14:19 BUILDING TIES To mark their 40-year relationship, CIBSE and ASHRAE teaching physics , but not so good at negotiating.’ hosted a joint seminar on delivering built environments that Frank Mills, of Frank Mills Consulting, are sustainable and that refl ect the needs of their occupants. gave a presentation on another ASHRAE Liza Young reports from the London event initiative – the Cold Climate Design Guide. H e said the guide was particularly relevant to the UK – a country that experiences extreme cold ne of the most important skills to conduct energy audits, and to develop their conditions for short periods . an engineer must possess is the management and relationship skills. In 2011, Heathrow Airport was closed ability to build relationships with The course – which will go out to250 for a week because of snow, which cost the clients, said ASHRAE president branches in 130 countries – will take students economy £280m a day ( £145,000 per minute). OTim Wentz, at the CIBSE ASHRAE 40th through each step of the energy audit process, With this in mind, if £2m was invested into a Anniversary Seminar, at University College from carrying out preliminary energy London (UCL). assessments and space function analyses, ‘We have to work with clients who are not to performing site visits and completing engineers – not experts in applied science – an ASHRAE Level 1 Energy Audit Report and convince them that energy effi ciency is and Building EQ label. The ASHRAE Level the right path to be on,’ Wentz added. 1 site visit and post-survey interview are ‘The secret to success – whether you re a opportunities for developing client relations. an architect, engineer or contractor – is One of the fi rst lectures of the course is on building relationships.’ presenting yourself in a way that’s not ‘you H esaid ASHRAE’s Building EQ energy against them’. ‘The aim is to convince clients management tool – which rates similar that you’re here to help them operate and buildings in similar climate zones – could maintain the building. That is not something be used to nurture and strengthen links you do in one meeting – but over time,’ with clients. It has been adapted to form said Wentz. ‘This is a skill set that is really part of a new online course, developed at the needed in our industry – that has not got the CIBSE President John Field, University of Nebraska, to teach students how attention it deserves. We’re really good at who chaired session two
32 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp32-33 CIBSE Ashrae Seminar.indd 32 21/10/2016 14:20 40TH ANNIVERSARY SEMINAR
The secret to success – whether you are an architect, engineer or contractor – is building long-term relationships
for assessing the correlation between heating consumption and fabric condition. Looking ahead, Hong said research would focus on factors beyond the building envelope, such as regional differences, investment, or size of sustainability teams, as well as indoor environmental quality. Marcella Ucci, UCL senior lecturer in environmental and healthy buildings, spoke of the industry no longer looking at buildings as an opportunity to avoid risks, but asa chance to add value to people, communities and businesses. system that used waste heat from the terminal She said a new type of professional to melt snow from the hard standings around is required to embed health, wellbeing the airport, then the investment would have and environmental quality into building been recovered in 15 minutes, said Mills. extended the capability of benchmarking, design.‘We are no longer just architects The UK need s to put its waste heat to better he added. For example, since display energy and engineers working together – we use, he added, citing it as the only developed certifi cates (DECs) were introduced in are public health professionals, sociologists country in the world that throws away £150bn the UK, energy benchmark fi gures can and planners.’ worth of heat – and 160m tonnes of CO2 – be adjusted to take into account seasonal Ucci said the factors that impact on from its power stations. and regional weather variations, as well as health and wellbeing can be ranked in order Dr Sung Min Hong, CIBSE research occupancy patterns. of importance. When carrying out this associate, addressed the challenges of Hong said a joint CIBSE and UCL exercise with her MSc classes, Ucci said the delivering energy benchmarks to help benchmarking project – which is analysing engineering students put structural damage, industry stakeholders improve the energy data from 40,000 buildings – aims to make building collapse and fi re at the top of the effi ciency of buildings. He said one of the benchmarking more useful and robust, while list, while those studying social sciences limitations of using the benchmarks in CIBSE helping stakeholders make better policy and considered sanitation and thermal conditions Guide F is that it’s diffi cult to take intoaccount investment decisions . It also aims to review to be most important. individual circumstances that may infl uence and update the existing benchmarks in ‘This is an indication of how the two energy demand, distorting the comparison. CIBSE Guide F, and push the boundaries of professions think very differently,’ she Hong said a comparison of buildings’ knowledge on how non-domestic buildings said. ‘As built environment professionals, particular circumstances was more useful use energy. we are trained to avoid the catastrophic than contrasting a range of buildings with one Over the past year, the empirical data has at the building scale, while public health static, absolute benchmark. Some methods been used to assess different benchmarking professionals tend to look at the more methods. Although buildings are currently prevalent conditions of the population.’ ASHRAE president categorised by activity type, Hong said, this is UCL’s new MSc course health, wellbeing Tim Wentz not necessarily a good indicator. and sustainable buildings will aim to forge a For example, where Guide F differentiates new generation of professionals that drives between primary and secondary schools, TM health and wellbeing in a sustainable manner. 46 Energy Benchmarks groups together all ‘The question shouldn’t be : “What is the school buildings . After analysing data from optimal design?” tI should be : “Under what 7,000 schools, Hong found that there was a conditions is this design optimal?”’ said Ucci. distinct difference in the way primary and Emilia Targonska, Hoare Lea engineer, secondary schools use energy. Even though rounded off the seminar by considering how GAGLIARDIIMAGES / SHUTTERSTOCK they share an activity type, if buildings have expertise, together with integrated working different characteristics, it is very diffi cult to and the appropriate application of technology, compare them, he said . can produce outstanding built environments. H ong’s research also looked at never- She said: ‘There are many qualities of a great before-assessed characteristics, including building but, only if they all come together, compactness of building footprint – a proxy does it become excellent.’ CJ
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CIBSE Nov16 pp32-33 CIBSE Ashrae Seminar.indd 33 21/10/2016 14:20 WRESTLING WITH THE FUTURE OF HEAT Where should the UK source its heat? WSP Parsons Brinckerhoff’s Barny Evans and CIBSE CHP/District Heating Group chair Phil Jones discuss the options
CIBSE Homes for the Future supplying heat via heat networks is going to Group debate at Hoare Lea, in be the way forward. District heating (DH) September, highlighted a distinct is an ‘enabling’ technology that allows the division of opinion about the connection of much larger, more efficient Afuture of UK heat: all-electric or gas.However, plant, which can be easily maintained. In the with so many potential influences on the next few years, that could be large, high- energy mix of the future, can the argument be temperature HPs, combined with – or even so black and white? driven by – combined heat and power (CHP). The Committee on Climate Change’s BE: The need for energy efficiency is a benefit Next steps for UK heat policy report, for of all-electric solutions. Because they become example, identifies the need for a new strategy more efficient at lower flow temperatures, they – including the use of hydrogen – anda favour energy efficiency. CHP-led systems stronger policy framework to enable building become less efficient as thermal demand decarbonisation over the next three decades. drops, so they are very resistant to energy (For more on this, see page 9.) So we asked two speakers, representing both sides of the ‘electric/gas’ debate, to go head to head.
Barny Evans (BE): Heat pumps (HPs) should provide the vast majority of space heating and domestic hot water (DHW) in the long term. HPs should be mandatory – or at least policy – for all new developments now, with a long-term plan for retrofitting them, combined with energy efficiency measures for our existing building stock. Phil Jones (PJ): An entirely all-electric future is unlikely. I agree HPs will play a big part – and accept that an all-electric approach may be most likely in off-gas grid situations. But in high-heat-density areas, such as cities,
34 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp34-36 Phil Jones vs Barney Evans.indd 34 21/10/2016 17:58 DEBATE FUTURE OF HEAT
Some big factors will slow down the move to all- electric. First, consumers love boilers, and radiators to warm their bums on
asset easily. They will fi nd other things to put into it – perhaps hydrogen. The ingenuity of engineers will bring a decarbonised gas grid. Let’s consider a future in which the gas grid is a near-zero carbon option. That means CHP will still play a part in the mix, running – for example – on hydrogen, and producing local electricity without the high transmission losses of the electricity grid. It opens up real opportunities for fuel cell CHP running on hydrogen directly, without the need for a reformer to convert natural gas to hydrogen. L ocal CHP is at least 80-85% effi cient, as it provides/uses both the heat and power. We will probably never build power stations near cities, where we need heat. So local CHP will always be an option if power stations – even nuclear – throw away heat. effi ciency measures. A truly competitive performance (COP) of 4, with some reduction A recent KPMG report argued that market is taking shape in the power sector and, in demand, we still need an electricity grid hydrogen could be feasible, and a study in provided we are all-electric, we can benefi t. that is twice as big as we have now – and that’s Leeds is working to develop a pilot for a local (See our white paper at bit.ly/2ep4Vvf). excluding electric vehicle consumption. I can’t hydrogen grid. So the decarbonisation of PJ: Some big factors will slow down the move see the gas grid disappearing entirely and the the gas grid is starting. Biogass and syngas to all-electric. First, consumers love boilers, electricity grid doubling – or tripling – in size. production/injection may start the process, but and radiators to warm their bums on. Second , BE: Recent reports have shown that, over lead to a hydrogen-based gas grid. changing attitudes will be diffi cult – heating a lifetime, the lowest carbon option is heat BE: I am a fan of hydrogen in that it offers the installers are heavily incentivised to sell boilers. pumps ; the next lowest is gas boilers; and the opportunity for inter-seasonal energy storage, A boiler sold in 2020 could keep going until highest is a CHP system. This is why there which should be used through standard 2035-40. This won’t prevent a decarbonised is no place for gas CHP in our system; even hydrogen power stations and then fed as future, but it will be an uphill struggle. Third , if you don’t accept the all-electric option, a electricity. Replacing mains gas in our network there is a lack of infrastructure. Even if we standard gas boiler and mains electricity is would mean changing every appliance at the assume future HPs have a coeffi cient of lower carbon than a CHP. same time, including the CHP engines that PJ: Your hierarchy is based on today’s grid have been – or are being – installed.
CO2 emissions from heating factors, but the future is hard to predict. If you The other issue with hydrogen is that it only can assume the electricity grid decarbonises , helps with CO2 emissions if it is generated Meeting the UK’s 2050 climate obligations will require the near why can’t we assume the gas grid does too? from renewable energy – which means you complete decarbonisation of heat. This I agree natural gas will have to fall away as a must have had the renewable electricity/heat is achievable if action is taken now fuel, but other gases are available – syngas, to make it in the fi rst place. If you just use anaerobic, biomass gasifi cation and landfi ll, to gas through steam methane reforming, or name a few – before hydrogen comes along. electricity through electrolysis, you haven’t BE: My understanding is that no-one thinks gained anything –apart from a reduction in the decarbonisation of our gas grid is realistic local air pollution, which electricity already
103 Mt CO2 85 Mt CO2 – at least in the short term. The realistic limit gives you . 1990 2015 at the moment is about 10%. CHP systems or PJ: The previous change – from town gas to boilers could become low/zero carbon only if natural gas – shows it is possible. But what if we develop new methodology for generating the decarbonised gas grid only supplied certain 19 Mt CO2 zero carbon natural gas – such as an algae. larger, local loads? Simply focusing on a totally 2050 PJ: It is highly unlikely the companies that HP world closes out all sorts of other options Source: Next steps for UK heat policy CCC report own/operate the gas grid will throw away that and opportunities. If you are saying DHW will
www.cibsejournal.com November 2016 CIBSE Journal 35
CIBSE Nov16 pp34-36 Phil Jones vs Barney Evans.indd 35 21/10/2016 14:22 DEBATE FUTURE OF HEAT
be all-electric from HPs, then anything more than 3.5 COP is optimistic – unless you go large and put them on heat networks. Also, will consumers want cooking to be all-electric? Social factors will infl uence energy supply. BE: We may end up with a zero carbon gas grid or zero carbon hydrogen. If we do, then CHP systems would become low/zero carbon – but so would an all-electric system, which can use both gas and hydrogen in power stations to generate zero carbon electricity. An all- electric system is future-proof in any scenario, whereas any CHP/gas system is dependent on something that may never happen. PJ: The electricity grid has been decarbonising Evans and Jones: Testing the fast ,but much of that is a ‘dash for gas’, away strength of their arguments from coal. How will it decarbonise the rest? It will get harder and harder to reach a 100 % and consumers off individual gas boilers. don’t create a massive increase in electrical zero carbon grid. It is more likely that a range BE: In the new-build sector, particularly demand , and we are only building at about of supply systems and local technology will in cities, we face three major issues: CO2 1% of our stock per year decarbonise. HPs will be a big part of the heat- emissions, overheating and air quality. HPs ● No CHP engines or other gas systems to be generation – and cooling – landscape, but our address all of these. deployed until we have decarbonised the gas future will never be all-electric . PJ: Where larger, local CHP displaces grid/converted it to hydrogen. BE: Astandard Worcester-Bosch gas boiler and individual boilers, it can result in improved PJ: I agree we should put energy effi ciency mains electricity is lower carbon than a CHP. emissions overall, through better effi ciency fi rst, but that is proving an uphill struggle, with On this basis, with regard to DH networks, we and dispersal. On a national scale, local CHP electricity consumption in buildings rising. In can leave it to the project engineers to decide at 80-85% effi ciency results in fewer emissions existing high-heat-density areas, heat networks if there is a reliable source of heat that would than power stations. The decarbonising allow technology to be changed/connected. improve the performance of an HP suffi ciently electricity grid provides an air quality benefi t And CHP is still going in for cost-saving to justify the expenses and losses on the locally, but not nationally. However, if the gas reasons ; his t saving can help fund the heat network – and loss of choice for the consumer. grid decarbonises, perhaps it’s equal all round. networks that enable future supply. PJ: Cities will be a heat network-based BE: Our cities have a major air-quality issue. I f a heat network exists – or there’s a local solution; you can put any technology on the This is why we should keep combustion out of heat density that suggests a heat network – a front end – fuel cells, CHP, solar water, energy urban areas. I propose a compromise: new-build should connect. Unfortunately, cost from waste – and supply low carbon heat to ● Don’t change the heating in existing is king – and that is driving CHP right now. any type of demand or building. Copenhagen developments , but agree a programme of But in 5-10 years’ time, my guess is city-wide is supplying 98% of its heat via DH. energy effi ciency . Decide whether/how t o DH, supplied by a combination of CHP and The off-gas grid areas are probably going to change them to a decarbonised gas system, HPs – it’s all in the mix! CJ be an all-electric heat pump world ; he t suburbs all-electric , hydrogen or other when/if these will be a mix; and – where the conurbations are things are available ● Barny Evans MCIBSE is associate for energy and sustainable development at WSP Parsons heat-dense enough – a heat network is a good ● New developments should be allelectric- . Brinckerhoff , and Phil Jones FCIBSE is an energy approach. Heat networks could wean installers With very little need for spaceheating ,they consultant and CIBSE CHP/DH Group chair Heat Networks
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www.cibsejournal.com November 2016 CIBSE Journal 37
p37_CIBSEMagNov16.indd 37 17/10/2016 12:09 FRESH THINKING A single-sided ventilation strategy that meets environmental circulation/atrium spaces, and centralised control of the atrium environment, based criteria – while upholding design quality – has been rolled on the ventilation needs in each of the out in two Nottinghamshire schools. Breathing Buildings’ occupied rooms. This needs to be coupled with – or substituted for – a system of Shaun Fitzgerald, Cundall’s Peter Hazzard, and John mechanical ventilation in winter, with Leonard, from Nicholas Hare Architects, explain the system considerable capital and running costs, or a network of mixing systems that link with the atrium. trict new environmental Nicholas Hare Architects, and building requirements are making it very services engineer Cundall, have sought challenging for engineers and to replace this complex strategy with a architects to design economically much simpler, single-sided ventilation Sviable schools without compromising on system, which could boost natural the quality of materials and architecture. ventilation on summer days, as well as Baseline designs developed by the provide heat recovery. The design team Education Funding Agency (EFA) are helped develop a new ventilation unit with based on cross-ventilation, where rooms manufacturer Breathing Buildings, and the are coupled with full-height atria in first schools to feature the design have now the circulation zone. This approach been completed. requires noise attenuation and smoke The deep-plan classroom design offers control between the occupied rooms and an alternative to cross-ventilation, and
38 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp38-42 School ventilation.indd 38 21/10/2016 14:44 SCHOOL DESIGN VENTILATION
reduces engineering complexity and the it could offer flexibility and simplicity in overall costs of the school. building design and in operation. However, most of the available The schools decentralised systems were defective in The Nottinghamshire Priority Schools terms of fresh air distribution, draughts Building Programme (PSBP) batch of or heat recovery, or the energy and space schools was awarded to Kier in May 2015, requirements of conventional heat supported by its design team of Nicholas exchangers. Appreciating the advantages FRESH AIR SUPPLY Hare Architects (NHA), MEP engineers of air-mixing systems, Nicholas Hare When using the fan to supply fresh Cundall, daylight analyst Chris Jackson, presented a proposal to Breathing air, a separate pathway is available and MACH Acoustics. The goal of the Kier Buildings for a fan-driven mixing unit for passive exhaust. This pathway can be used for two-way flow team was to deliver six schools, in line with to supply the fresh air requirements of when the fresh air fan is not in use the tight programme and budget provided classrooms with tempered air. and when other openings – such by the EFA, which met the stringent The proposal – based on an old-fashioned as windows – are closed (as in Facilities Output Specification (FOS). car heater – placed a mixing unit at the passive night-time cooling). If a window is open, flow through NHA was the architect for the first two head of each window, ducting air towards the NVHR damper will depend on: schools – Newark Academy and Serlby Park the back of the classroom and allowing it to the relative height of the NVHR to Academy. exit beside the intake, or to be remixed with the other opening; the wind FOS stipulates environmental design the incoming air using a simple control. It pressure; and the difference between room and outside criteria covering various aspects, such was developed by Breathing Buildings to temperatures. The key is how the as air quality, thermal comfort, glare- be placed into the natural ventilation with damper is controlled – multiple free daylight and comfortable acoustics. heat recycling (NHVR) unit, with two small temperature sensors in the NVHR ensure draught mitigation, with Crucially, these performance requirements centrifugal fans in each. fan and damper modulation. are to be met within defined energy- The units achieve the equivalent of heat consumption targets, which – in turn – require heat recycling in winter. NVHR modes Several people in the industry have said that increasing engineering performance while tightening budgets presents a severe challenge, because engineering performance is measurable and architectural quality is not. There is a risk that the cost of satisfying the requirements of the FOS may lead to a degradation of architectural quality. The approach taken at the Nottinghamshire schools represents an attempt to meet the sensible environmental Natural mode G Damper opens G Single-sided ventilation G Works with other openings in the space criteria of the FOS in a way that is architecturally satisfying, while preserving some funds to contribute to build quality.
Building form The drive for economy has forced architects to consider deep-plan building forms, with minimal envelope-to-volume building form concepts. These multi-storey, ‘big box’ approaches reduce the potential for natural ventilation and daylight in teaching spaces – the very criteria that the PSBP wishes to Summer mode G Damper opens fully G Air delivered to rear of the space G Natural exhaust through the unit G Night cooling maximise. So the design team reviewed the ventilation strategy of the baseline designs developed by the EFA.
NVHR mixing unit Even before the PSBP, Nicholas Hare Architects had teamed up with Breathing Buildings to design many schools with a variety of ventilation systems. The
desirability of an effective, single-sided Winter mixing ventilation system had long been clear: G Draught mitigation strategy G Mixes warm room air with fresh external air G Natural exhaust through the unit
www.cibsejournal.com November 2016 CIBSE Journal 39
CIBSE Nov16 pp38-42 School ventilation.indd 39 21/10/2016 14:44 SCHOOL DESIGN VENTILATION
recovery by more economical means – The desirability of an using low fan power and exploiting the heat effective single-sided gains in the space – and allow boosting of natural ventilation on still, summer days. ventilation system had long been clear: it could offer Integration into the building flexibility and simplicity in NHA and Cundall worked with Breathing building design, as well as in Buildings from the start of the design operation development for the Nottinghamshire PSBP. It quickly became apparent that the NVHR unit was of interest and the team set out to test how it could be integrated into the design. Cundall confirmed from the outset that an exposed, thermally massive soffit was essential to furnish the buffer for moderating summertime temperatures, especially on the hottest days. The adaptive thermal comfort criteria used in the FOS are based on operative temperature, which is a function both of the temperature of the exposed surfaces in a space and of the air temperature. Thermal mass, which is appropriately cooled at night, can help to ensure lower surface temperatures and, consequently, lower operative temperatures. A comprehensive round of design studies was undertaken to test various options for façade design. The final solution was based on a modular arrangement, consisting of a window opening every 3.7m. This equates to two windows per typical classroom, three windows per typical science lab and four windows for the largest classrooms, such as those for art. This, by now standard approach not only enables flexibility in space-planning layouts, but also produces a regular and Window design cost-effective elevation design. The window design was optimised to achieve the necessary free opening area without the the ideal balance between the performance vents intruding significantly into the occupied Modelling and operation requirements for daylight, ventilation and space. The NVHR unit is plugged into the Cundall undertook dynamic thermal temperature control. window frame at high level, above these modelling in IES for the entire school at a Each window opening consists of a number vents. A single louvre is fixed on the outside, very early stage, and the results obtained of elements. A large, fixed double-glazed unit giving a unified external appearance to these using this integrated design were excellent. supplies daylight (0.70 light transmission), three elements. The louvre was carefully Passive ventilation was shown to work but controls solar gains (with a g-value of selected to have a very high free area and low throughout the majority of the year; the less than 0.4). The size and location relative drag coefficient, as it is required for passive NVHR units are only called upon to to the classroom space is governed by the natural ventilation. operate and assist in the ventilation of the FOS requirement for daylight autonomy and The windows behind the louvre can be classrooms during the colder weather, on useful daylight illuminance. opened at any time and do not need a blind, the hottest summer days, and during the The size is also economic, being about the which would otherwise block the opening summer nights. largest that standard aluminium window window or flap around in the breeze. In colder weather, the NVHR unit systems will cope with in cost terms. Vertical Furthermore, there is no risk of anyone falling mixes incoming cold fresh air with warm Venetian blinds offer glare control for fixed out, or of a student walking into the edge room air at the façade, with pre-warmed windows without interference from the of an opening window. The windows can be air introduced at the point of entry to the ventilation elements. left open out of hours for a night purge if room – so the risks of cold draughts are Two tall and narrow, inward-opening vents required, as the louvre ensures a measure of mitigated. The unit yields fan-assisted are placed beside the fixed pane. These create physical security. ventilation in the latter part of the hottest
40 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp38-42 School ventilation.indd 40 21/10/2016 14:44 Emax 2. Because good things come in small packages.
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www.cibsejournal.com November 2016 CIBSE Journal 41
p41_CIBSEMagNov16.indd 41 17/10/2016 12:18 SCHOOL DESIGN VENTILATION
summer days, when the effectiveness of the heat absorption from the exposed soffit has waned. In this case, the optimal strategy is to maximise the ventilation rate of the room to minimise the difference between the interior and exterior air temperatures. The fan-assisted flow to the rear of the room is a more cost-effective way of delivering this feature than a purely natural, cross-flow scheme. In summer, the NVHR offers a further means of ventilating the buildings at night, thereby The integrated design helping to ensure it is adequately cooled in has offered a simple and preparation for the following day. aesthetically pleasing The integrated design using the NVHR solution to what, otherwise, units has offered a simple and aesthetically pleasing solution to what, otherwise, could could have looked like a have looked like a façade peppered with façade interrupted by more small louvres, or interrupted by ventilation than 100 ventilation units units – more than 100 of which feature in the scheme. The simplicity of this solution also proved to be very cost-effective. CJ
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www.cibsejournal.com November 2016 CIBSE Journal 43
p43_CIBSEMagNov16.indd 43 17/10/2016 12:19 IMAGES UNLESS OTHERWISE STATED H ARRY K H/L AND R OVER B AR RAISING Cup. Since the first race in 1851, no British team has ever won it. That could change in 2017, when a team formed by Ainslie will be among those challenging the defending champions, Oracle Team USA. THE BAR Land Rover BAR (Ben Ainslie Racing) Land Rover BAR will attempt to achieve Britain’s first is based in Portsmouth, and has its America’s Cup victory next year. If its teamwork is headquarters in a prominent new building anything like the collaborative approach taken to design on the waterfront. Its connection with sailing can be seen its HQ, Sir Ben Ainslie stands a good chance of bringing in the façade; a large fabric wrap partially home the trophy. Alex Smith reports covers all four sides of the building. It acts as a solar shade, as well as a billowy metaphor for the boat research and he United Kingdom has excelled development going on inside. at sport in recent years, including The headquarters are the focal point for stirring success at the Rio Olympics, the design, construction and development where Team GB finished second of the team’s boats, as well as for the Tin the medal table, ahead of sporting crew’s sports science and fitness facilities. superpowers such as Germany and China. Its set-up has been likened to that of a Some of Britain’s greatest modern-day Formula 1 team; it houses the team’s achievements have come in the Olympic design, commercial, event management, regatta – and with two golds and a silver in sustainability, marketing and PR teams, Brazil this summer, the UK was again the who will closely monitor the progress of PROJECT TEAM leading sailing nation at the games. This the America’s Cup challenge in Bermuda was despite not having the services of Sir next year. I Architect: HGP Architects Ben Ainslie, the most successful sailor in On the ground floor, behind the large I Environmental consultants: Couch Perry Wilkes Olympic history, who won four consecutive Union Jack doors, is the workshop, I Main contractor: Allied gold medals up to and including 2012. where the boats are assembled, stored Developments Despite its recent achievements on the and maintened. Above are offices, a gym, I Structural engineers: Reuby water, one notable trophy has been beyond meeting rooms and a corporate area. There and Stagg the reach of British sailing: the America’s is a central lightwell rising through the
44 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp44-46, 48 BAR Land Rover.indd 44 21/10/2016 17:57 CASE STUDY LAND ROVER BAR HQ CREDIT MARK L OYD/ LAND R OVER B AR
says Tomson. ‘Right from the start, we had aspiration for a sustainable building before to sit down together.’ all the money had been raised for the Phil Ward, associate at Couch Perry America’s Cup challenge. Wilkes, said BIM was critical in meeting ‘We did an assessment of how we the tight schedules, and it forced the could get to zero carbon, and we decided team to spend more time getting the to do it in stages,’ says Ward. ‘We had building, which helps to bring natural light plans right at the design stage. ‘We just already specified good U values and low into the building, and naturally ventilates used it for design and coordination, rather air permeability. Further reductions were the workshop. (See panel, ‘Inside Land than scheduling.’ achieved by specifying efficient equipment. Rover BAR’s headquarters’). Another problem was meeting the Solar PV on the different roofs further As well as preparing an assault on one reduced carbon emissions.’ of the oldest trophies in international Around 20% of the team’s electric sport, Land Rover BAR is dedicated to demands are met by 130MWh/yr roof-top creating a sustainable legacy for sailing Sustainability was embedded PVs. Renewable energy operator – and (see panel ‘Sustainable features’), and from the start. We could have one of the team’s official suppliers – Low sustainability officer Susie Tomson ensures Carbon supplied the array and is working to that the environment is central to strategy built a cheaper building but provide solar power to the team’s temporary decisions. wanted a long-term option, base in Bermuda. It is also supplying solar ‘Sustainability was embedded right with design, innovation and power to a local school and supporting the from the start. We could have built a sustainability in one team’s official charity, the 1851 Trust, with cheaper building, but we wanted a long- income from the government feed-in tariff. term option, with design, innovation and There are facilities to allow the future sustainability wrapped into one,’ she says. installation of technologies to reduce emissions even further. These include The race to the start line connection points, ventilation louvres, This presented a challenge for the project a blanked-off flue to the roof and a gas team because the HQ had to be designed connection to accept a CHP unit. There are and built in less than half the time expected also connection points and space allocated for this type of building. to install seawater cooling equipment to ‘For the boat to be competitive in the first reduce the chiller load at certain times of America’s Cup World Series event in 2015, the year. we had to be operational within 18 months,’ Fan coil units that are easy to reposition says Tomson. were specified; on the Tech Deck – the Achieving this meant bringing the team’s education space – they have already design team together at the start, and using been moved by the M&E subcontractor to building information modelling (BIM) to meet the elvolving requirements. coordinate the design. ‘Collaboration was Internal environments differ across one of the strongest stories on this project,’ the building. The ground floor houses
www.cibsejournal.com November 2016 CIBSE Journal 45
CIBSENov16 pp44-46, 48 BAR Land Rover.indd 45 21/10/2016 16:49 21/10/2016 16:49
were 1 - ·h@50Pa K 2 . 1 - /m m 3 . www.cibsejournal.com m 3 15W . 0 Pa, which compared which ·h@50Pa, 2 /m 3 m 6 . 2 Ward says the team members used trial used members team the says Ward an to workshop the from runs atrium An defining as well as – wrap fabric The the from building the shelters ‘It air warm how showed imaging Thermal to attention special paid designers The Noise reduction was also a challenge. a also was reduction Noise the of evaluation Post-occupancy approach meant they could pursue a pursue could they meant approach the in strategy ventilation natural simple and open to trusted be and workshop, internal adjust to doors main the close quality. air and humidity temperatures, had they far how out work to error and optimum achieve to doors the open to temperatures. through exhausted is air where roof, ETFE louvres. glazed also – building the of appearance the minimises It building. the condition helps warm traps and interior the in gains solar building the and fabric the between air heating the reduce to helping envelope, building. the in requirements solar provides ‘It Ward. says elements,’ the relax could we means which shading, of transmittance) energy (solar g-values modelling integrated used We glazing. the providing of benefit the assess to software in reduction significant a and wrap the achieved.’ was loads heating and cooling and fabric the between trapped being was heating reduce to helped which windows, winter. the in requirements envelope. the of performance thermal the of values U Low specified for walls, floors and the roof, and roof, the and floors walls, for specified permeability air showed testing pressure was favourably with the with favourably that had been used in the model. the in used been had that Quiet please mass thermal use to tried designers The cooling, passive for possible as much as the allow not did build the of speed the but for slabs concrete poured of specification compromise The building. steel-frame the a by supported floors concrete use to was much is which system, flooring rib hollow slabs. exposed with install to quicker special and roof, the on is area VIP The noisy by disturbed be to want not did guests the watched they while equipment HVAC positioned been has chiller the So sailing. dry the while plantroom, mezzanine the in specified been has roof the on cooler air rating. noise possible lowest the with University the by supported is building very was it that says Ward Portsmouth. of 16°C. air to assist with their rigorous their with assist to air The workers and sailors like conditions like sailors and workers The The worker’s hand-on, technical hand-on, worker’s The One half of a floor is taken up with a Tech up with a Tech One half of a floor is taken and area and kitchen is also a canteen There helps bring natural light in, as well as allowing light in, as well helps bring natural ventilated. be naturally to the workshop enthusiasm ignite Deck, which is designed to among 11-16-year-olds. subjects STEM for and interactive boat a test features This level sailing experience to users allow games, that used by some of the technologies and try out the team. of the top at area VIP hospitality a corporate views 360 degree the building, which offers the Solent. across the workshop, where Land Rover BAR is BAR Rover Land where workshop, the Cup America’s the for boat its completing early in launched be will it – challenge panels radiant by heated is area The 2017. of temperature a to one ‘At Ward. says invigorating, be to the in heating any want didn’t they point wanted they gym, the in and, workshop fresh of lots training regime,’ he says. he regime,’ training CREDIT SHAUN ROSTER LAND ROVER BAR HQ BAR ROVER LAND CIBSE Journal November 2016 On a mezzanine level is a gym, meeting room is a gym, meeting level On a mezzanine 46 Opening the large Union Jack doors reveals reveals doors Union Jack Opening the large of the and the heart the 12m-high workshop and research maintenance boat-assembly, in also workshops are There operation. to which will be shipped out containers, store as a paint shop and bike Bermuda, as well cycle). to encouraged are (staff and showers/ changing area, the crew, for design and for offices are that Above toilets. for open area and a large staff, operation rising lightwell is a central There meetings. which the workshop, the building from through CASE STUDY STUDY CASE Inside Land Rover BAR’s headquarters BAR’s Inside Land Rover CREDIT HARRY KH/ LAND ROVER BAR CIBSENov16 pp44-46, 48 BAR Land Rover.indd 46 THISION® L EVO * YEAR Warranty THE COMMERCIAL BOILER REDEFINED ON HEAT EXCHANGER
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www.cibsejournal.com November 2016 CIBSE Journal 47
p47_CIBSEMagNov16.indd 47 17/10/2016 12:21 CASE STUDY LAND ROVER BAR HQ
9 2 10 12 1 4
3 11 16
13 6 8
17
15 5 7
Section view of Land Rover BAR headquarters
difficult to make predictions about energy KEY use because the building has so many uses 1 Brise soleil Passive solar shading to southern – workshop, restaurant, bar, offices, gym elevation SUSTAINABLE FEATURES 2 Roof U value 0.15 w/m2 K and so on – and it was difficult to know how 3 Fabric wrap Enhanced thermal performance often areas such as the corporate hospitality The Land Rover BAR HQ was required under reduction in g value . -1. -1 would be used. planning to achieve the Breeam Excellent 4 Glazing U value 1.4 w m K (including frame) standard, and has many environmental 5 Floor U value 0.15 w.m-1.K-1 The success of the building is an features, including: 6 Wall U value 0.15 w.m-1.K-1 auspicious sign for Land Rover BAR as 7 Air tightness 2.6 m3/m2.h at 50pa the America’s Cup challenge nears its I A/A+ Green rating for majority of 8 Rainwater harvesting from boat ballast structural materials 9 LED lighting and daylight control completion. If the cooperation and technical I 100% compliant paints and carpets 10 Atrium Ensures natural daylight/ventilation and skills demonstrated in the building delivery I 97% of demolition materials recycled connectivity to the building is replicated by the sailors in Bermuda, a I 70% improvement in air permeability 11 Four pipe variable speed fan coil at high levels British team might just be returning to compared to Building Regulations DC motors 12 Photovoltaic array 707m2/114kWp I 100% demolition crushed and reused Portsmouth with the America’s Cup – for 13 Plant zone Air handling and heat recovery; boilers; foundations the first time in 166 years. chiller (10/16oC) I 1,200-litre tank harvesting rainwater ‘The builders, M&E teams and designers 14 BMS and metering Gas - incoming, boilers; water; I 25% water efficiency improvement from power – each board; lights and power; separate; PV all pulled in the same direction and– as Building Regulations 15 Future sea water cooling we worked collaboratively – we were able I Reintroduction of native oysters in an 16 Radiant heating to move the design forward really quickly,’ artificial reef 17 Natural ventilation I Adheres to ISO 20121:2012 Event 18 Future CHP Flues installed; plantroom space says Ward. ‘This building proves that, with sustainability management systems provision; ventilation requirements met a good team, you can do anything’. CJ
48 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp44-46, 48 BAR Land Rover.indd 48 21/10/2016 17:57 If you control energy efficiently and precisely, you create the optimum working environment
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www.cibsejournal.com November 2016 CIBSE Journal 49
p49_CIBSEMagNov16.indd 49 17/10/2016 12:23
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50 CIBSE Journal November 2016 www.cibsejournal.com
p50_CIBSEMagNov16.indd 50 17/10/2016 12:25 51 21/10/2016 14:45 MUSIC SCHOOLS MUSIC Acoustics – Measurement – Acoustics 2009 : November 2016 CIBSE Journal November 2016 1 3382- In contrast, the recital hall at St AndrewsSt at hall recital the contrast, In buildingand treatments surface Different ISO provides someprovides parameters acoustic room of but,spaces performance on guidance theon based is criteria acoustic the generally, the on dependent also ‘It’s experiences. team’s useto going are they how – aspirations client’s there,’in performed be will what and space the usedbe to was hall the Stowe, At Healey. says neededwhich space, piano-recital a as mostly achievedwas This environment. controlled a acousticxed fi carefully-modelled providing by soundthe ensure to important ‘It’s conditions. adds occupancy,’ of regardless same, the stays seating,xed fi with halls recital ‘In Healey. absorptionsame the have to have seats the standarda get you so people, as qualities At unoccupied. it’s if even sound uniform equalof were seats the hall, recital Stowe soperson a of that to absorbance acoustic ofregardless balanced were conditions the not.’ or occupied was hall the whether forspace rehearsal a offer must which – variablerequire will – choirs and orchestras Healey. says conditions,’ acoustic quality. sound on bearing a have materials thedesigning when challenges the of One tohad ceiling the that was hall recital Stowe voidceiling the in space up free to lowered be changingmeant This systems. services the for ‘We space. the within treatment acoustic the wallthe ed chang and heavier ceiling the made does not hear any refl ected ‘late sound’. This sound’. ‘late ected refl any hear not does affectingsound, direct after slightly come can performance.the of perception audience’s the ACOUSTIC DESIGN DESIGN ACOUSTIC , is ais 2013, James Healey, acoustics associate director atdirector associate acoustics Healey, James earlyvery the deliver to wanted also We ‘ -seater recital hall, a recording studio,recording a hall, recital 250-seater The auditorium in completed School, Music Stowe comprising facility two-storey purpose-built, a importantis it says Brinckerhoff, Parsons WSP thereceives audience the that halls recital in this,deliver To . stage on produced sound direct above placed were ectors refl high-level large, towards sound the angle to Stowe at stage the audience. the heceiling,’ and sidewalls the from ections refl theon installed were diffusers ‘Acoustic says. soundthe scatter to stage, the to close walls, addition,In .’ ections refl undesirable avoid and andside either used was absorption acoustic audiencethe ensure to area seating the behind practice rooms, two classrooms and aand classrooms two rooms, practice 24 room. percussion soundproofed
University of St Andrews music centre music Andrews St of University
speaks to the team behind a newa behind team the to speaks Liza Young SUCCESS
approach. SOUND OFSOUND he University of St Andrews isAndrews St of University he its for renowned internationally foras well as – education and research residence,in orchestra its by concerts
Creating the right acoustic environment in a performancea in environment acoustic right the Creating space is a painstaking task that requires a multidisciplinarya requires that task painstaking a is space 2018. The building, located on the historic Queen s Queen historic the on located building, The Stowethe on working of experience With www.cibsejournal.com An orchestra performs in performs An orchestra hall recital the Stowe
the Scottish Chamber Orchestra. To keep inkeep To Orchestra. Chamber Scottish the musicworld-class a as reputation its with tune acreate to decided has university the facility, attractwill hopes it that hub performance new globe. the around from performers best the rehearsalpractice, of range a offer will Terrace, andrehearsal dedicated a spaces, teaching and andsuite recording a plus studio, performance completedbe will project the hoped is It library. in ofteam a Buckinghamshire, in School, Music engineersservices building and acousticians beens ha Brinckerhoff Parsons WSP from centre. music s’ Andrew St design to selected T CREDIT: STEPNELL CIBSE Nov16 pp51-52 Acoustics.indd 51 ACOUSTIC DESIGN MUSIC SCHOOLS
profiling, to stop the sound escaping through most crucial element of the St Andrews project the fabric,’ says Healey. ‘We wanted to keep will be identifying the noise criteria to which the low-frequency (bass) sound within the the services strategy will have to be designed. space because it offers warmth to the listeners ‘At the same time, we have to comply with by giving them a sense of being enveloped by Section 6 of the Scottish Building Standards, it. If the materials are light, and there’s a lot and achieve Breeam Excellent and EPC A of absorption or leakage of bass sounds, you ratings. All these are factored into the design get a cold sound that isn’t in keeping with the process,’ says Bruce. ‘We have to ensure musical production.’ the acoustics team is aware of our thought processes at every stage, including plant Services strategy selection and plant location.’ Graeme Bruce, WSP Parsons Brinckerhoff’s head of building services in Scotland, says Sound modelling acoustics criteria must be at the forefront of the The acoustics team at WSP Parsons HVAC services design at St Andrews: ‘The air Brinckerhoff uses modelling software to create distribution system must be carefully designed a 3D representation of the space, within which so it does not ruin the acoustic performance of any sound can be modelled in any location. the space.’ ‘We can take Mozart’s recital and predict how The ventilation strategy is particularly crucial it would sound in different points in the hall, to the success of the building, adds Bruce. and play it back to the client,’ says Healey. ‘In rehearsal spaces, for example, we have to ‘That level of feedback is very important for ensure outside noise doesn’t encroach into the something like acoustics, where what we’re space, and we don’t want noise escaping and creating is not visible.’ becoming a nuisance to neighbours.’ During objective analysis, the client is External environmental factors in St able not only to visualise the space using the Andrews will also be taken into account during architect’s 3D model, but also to hear how it’s design. Humidity control will be crucial for going to sound. The acousticians work with a this coastal town, which frequently experiences combination of models; they use the architect’s fog and mist. ‘Imagine a November evening,’ 3D design for visual cues, and develop their Fixed seats in Stowe hall are acoustically absorptive says Bruce. ‘It’s pouring with rain outside and own acoustic model for importing and 200 people are coming into the auditorium. modelling the sound. Because air humidity affects how sound travels, the system we design will maintain a Recording spaces constant condition, regardless of the external The architectural detailing and building environment. Our design must deal with a services design in the recording rooms at variety of changing conditions.’ Stowe Music School will inform the design Also high on the list of considerations is at St Andrews. At Stowe, each room has a the vibration through the building structure. dedicated AHU that enables a high level of Plant items – such as fans or air handling units sound insulation between rooms and avoids (AHUs) – can send vibrations through a steel ‘crosstalk’ issues – when sound travels through frame creating unwanted noise. common ductwork between different rooms. Angled walls stop ‘flutter echoes’ when recording From a building services perspective, the In smaller rooms, such as recording studios, standing waves – or ‘flutter echoes’, when sound bounces backwards and forwards within a room – can occur if walls are positioned directly opposite one another. ‘These unwanted effects have to be removed because you want as clean and pure a sound as possible in a recording studio,’ says Healey. To overcome this at Stowe, the team angled the walls. ‘Having a slight angle on opposing surfaces eliminates those echoes. We apply this to all music-related buildings,’ says Healey. Bruce adds: ‘One of the benefits of a multidisciplinary approach is that we work in a collaborative manner. This enables us to share information – and make decisions – quickly, which is important because projects usually The clean lines of Stowe run quite tight. It also ensures we can deliver – Music School’s exterior and exceed – the client’s brief.’ CJ
52 CIBSE Journal November 2016 www.cibsejournal.com
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www.cibsejournal.com November 2016 CIBSE Journal 53
p53_CIBSEMagNov16.indd 53 17/10/2016 12:26 I WEI HUANG / SHUTTERSTOCK
Papers on lift traffi c and waiting times had a strong presence at the event ON THE UP Traffi c simulation, pulley design and escalator strategies were brought to the fore at the 2016 Symposium on Lift and Escalator Technologies. Dave Cooper reports
here is no doubt in my mind have a huge budget to embrace technology. that the Symposium on Lift and John Trett came next, with a paper about Escalator Technologies is the best calibrating induction loops. Drawing on global gathering for the profession – his own experience of having a hearing Tit just gets better every year. condition – the result of an infection The 2016 event was the sixth staging caught while swimming – he explained of the conference, and the fourth time the requirements for induction loops and it has been held at Highgate House in how they often fail to work properly in lifts. Northamptonshire. I don’t think it will be the last we hear of More than 120 delegates from 18 this paper. countries attended the symposium , which The fi nal presenter of the opening was supported by a small exhibition staged session was Dr Jonathan Beebe, who by industry representatives, including spoke about the integration of lift systems components and stainless steel suppliers, into the Internet of Things – providing control panel manufacturers and the suffi cient discussion points for the University of Northampton (UoN). ensuing break. John Sinclair, associate dean from the The second session, chaired by Adam More than 120 delegates university’s Faculty of Arts, Science and Scott, past chair of the lifts group, attended the symposium Technology (FAST) , opened proceedings, focused on traffi c simulation. Five papers and express ed his delight that CIBSE, were presented, covering: a systematic UoN and the Lift and Escalator Industry methodology for the design of lift-traffi c Association (LEIA) continue to work systems; global dispatcher interfaces; an together in a partnership that culminat es overview of India; multicar dispatching; in an annual international event. and waiting times. Traffi c presentations Len Halsey, chair of the CIBSE Lifts always create lively debate and discussion Group, chaired the fi rst session on went on for a long time afterwards. technology and innovation , which Ben In the afternoon, I chaired a session Langham opened with a presentation about equipment and maintenance. Rory entitled How current technology trends are Smith opened this part of the symposium, empowering us all to drive innovation. His talking about the role of economic factors paper demonstrated that you don’t have to in traffi c planning. He gave an insight
54 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp54-55 Lift Symposium.indd 54 21/10/2016 14:46 LIFT SYMPOSIUM HIGHLIGHTS POGANYEN / SHUTT E RST O CK
For the fourth year, the symposium was held at Highgate House, Northamptonshire EAR
This was followed by a five-presentation NE ST TS
session on energy and engineering, chaired E / SHUTT by Rory Smith. The first paper looked at the
geometry of the lift car and its influence, RST O and was followed by papers on dynamic lift CK into how buildings are valued, and the control, lateral vibrations, holistic energy impact of our engineering decisions on benchmarking, and active cabin damping return of investment. on ropeless systems. Dominic Dawson followed, to discuss The final – very entertaining and the report of thorough examination as a informative – session was chaired by Ben management tool for maintenance. The Langham. The four papers presented final speaker in this session was Jawk included: a discussion about the pilot study Meijer, who presented a paper about for making passengers stand – rather than innovations in pulley design, which walk – on escalators; fire systems in a provoked some interesting discussion working airport; the London Underground among the delegates about rope size and escalator passenger-safety strategy; and the Papers included a discussion traction problems. use of lifts to evacuate tall buildings. The final session of the day – again Stefan Kaczmarczyk and Richard about the pilot study for chaired by Len Halsey – was a break Peters concluded the symposium by making passengers stand, from the traditional: a 60-minute thanking all those who had contributed rather than walk, on workshop presented by Nick Mellor, papers and participated. The quality of the escalators; fire systems in a Lawrence Dooley, Stefan Kaczmarczyk presentations was exceptional, sparking working airport; the London and myself. It covered training and discussions in the Q&A sessions that Underground escalator looked at qualifications ranging from continued into the breaks. apprenticeships through to high-end The seventh Symposium on Lift and passenger safety strategy; academic qualifications, including PhD Escalator Technologies will again be held and the use of lifts to and MPhil. in Northamptonshire on 20-21 September evacuate tall buildings My presentation on how to register 2017, followed by an additional one-day with the Engineering Council and the event in Hong Kong in May 2018. A professional bodies followed. number of papers are already proposed. On the second day, Nick Mellor chaired If you would like to offer a paper the first of three sessions on codes and for the 2017 Symposium, visit www. standards. Lee Gray opened with a paper liftsymposium.org for more information. about the 1935 code of practice, then Papers from past symposium years may Mellor presented a paper by Sam Tanno be downloaded without charge from the – who could not attend – looking at the same website. CJ requirements of the new EN81 standards. Finally, Gina Barney presented the 08 02 l DAVE COOPER FCIBSE is managing requirements of the HTM - technical director at LECS memorandum, published by the NHS.
www.cibsejournal.com November 2016 CIBSE Journal 55
CIBSE Nov16 pp54-55 Lift Symposium.indd 55 21/10/2016 17:49 BUILDING HIGHER PERFORMANCE IN COMMERCIAL BUILDINGS
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56 CIBSE Journal November 2016 www.cibsejournal.com
p56_CIBSEMagNov16.indd 56 17/10/2016 12:27 SPECIAL FEATURES ● INDUSTRIAL AND COMMERCIAL HEATING AND COOLING This month: Air conditioning in high-rise towers; comparison of FCUs and chilled ceilings cost model; preventing legionella in district heating systems; CHP contract at leisure centre; and heat pipe dehumidifi cation CHUYUSS / SHUTTERSTOCK HIGH STAKES If cities are to hit their y 2050, 70% of the world’s population This ‘hybrid’ design – developed by partner is expected to live in cities. This Airedale and supported by fan supplier carbon-reduction targets, rapid urbanisation is placing an ever ebm-papst – is now nearing completion. A the next wave of high- increasing premium on property , ‘model’ building, based on a nominal 10,000m2 Bwith more developers looking to high-rises to offi ce in London, was used to assess ‘hybrid’. rise towers must have generate return on their land spend. Alternative air conditioning systems were more sustainable air While profi table, building upwards is a modelled using guidelines from the British conditioning. Arup’s Roger complex and highly regulated business. Two Council of Offi ces (BCO) Specifi cation, and Olsen says a new hybrid constant priorities are the need to save space with a Part L-compliant façade. and to improve energy effi ciency. Some of system – combining the most signifi cant steps being made by FCU v chilled ceilings elements from fan coil building services engineers are in the area of There are challenges with existing air and air conditioning. The standard, popular option water systems. FCUs are good for cooling units and chilled ceilings is a fan coil unit (FCU) , but these can be thirsty capacity and while, in the past, these have – will improve energy for energy, and noisy. tended to be noisy , FCUs are much improved . effi ciency and create more We set out to devise a product to harness the Performance has been enhanced through the power and fl exibility of the FCU, while cutting use of EC/DC motors and variable speed fans. space for occupants energy use. It is effectively a hybrid between a Chilled beams, ceilings and slabs tend not low-energy FCU and a chilled beam, operating to have suffi cient cooling capacity to meet the at chilled-water temperatures as a low-energy needs of an offi ce designed to BCO standards, fan coil unit, or with ‘cooled’ water from non- and to meet Part L façade regulations. Active refrigerated sources. chilled beams, which have ducted air supply,
www.cibsejournal.com November 2016 CIBSE Journal 57
CIBSE Nov16 pp57-58, 60 Arup skyscrapers v2.indd 57 21/10/2016 14:47 FAN COIL UNITS TALL BUILDINGS
do tend to meet the required cooling capacity. output can be obtained using cooling water Low-energy For chilled beams, ceilings and slabs, the from non-refrigerated, low-energy sources. fan coil unit 200mm cooling water temperatures have to be limited These include adiabatic coolers, chillers in free- ceiling void to a safe margin above the room dew-point cooling mode and borehole water. temperature, to avoid condensation. This often There is an advantage to dispensing with the results in a non-openable façade and control of need for secondary ductwork and supplying air the humidity of incoming outside air. directly from the unit into the space served; not only is less material used, with less cost, but Vertically challenged there is less energy consumed, because there is Some clients require exceptionally low storey no need to force the air through ductwork. heights, yet still achieve a BCO specification Our objective was to optimise the airflow floor-to-ceiling height – typically 2.75m for pattern. Generally, a high induction diffuser new buildings. In the past, a figure of4 m – which uses a radial ‘swirl’ pattern – is the has been used as a storey height for air and best approach for supplying air for cooling water systems. With increasing land values – without causing draughts. The fan discharges especially in urban areas – the trend has been air in a ‘swirl’ pattern, and the perforated towards ‘skinny ceilings’ with storey heights bottom face of the ‘hybrid’ has been designed There is an advantage to varying between 3.65m and 3.8m. not to interrupt or divert this. As long as the supplying air directly from The refurbishment of existing buildings perforations are of a minimum area and evenly the unit into the space often requires design teams to think laterally spread out, the swirl pattern is maintained. served; less material is about how to resolve this challenge, especially The large coil size means that the face 1960 used, with less cost, and less within the storey heights from the s and velocity is around one-third of that normally earlier, typically 10 feet (3.05m). A trend is used for cooling coils. The internal pressure energy is consumed because to use exposed services or activated thermal drop for the fan is around 30% of that there is no need to force the mass, taking advantage of the height released required for a conventional FCU. There is no air through ductwork to achieve an alternative appearance. Access to secondary ductwork, so no external pressure air conditioning systems above the false ceiling drop. The total pressure required from the usually has to be provided by a fully accessible hybrid fan is about 15% of that required from ceiling – which is expensive – or by individual a conventional FCU. The low airflow and low access panels, which can be unsightly. pressure drop mean that the fan requires very little power. The specific fan power, in W.L-1.s-1, The response is approximately one-third of that available The starting point for the hybrid design was to from other FCUs. The fan is variable speed to use a cooling coil, which is much larger than save energy at times of low load. the conventional size for an FCU, approaching We chose the plan dimensions of 600mm x that used for chilled beams. This means a low 600mm, as this is a popular size of component face velocity and a very low air-side pressure for false ceilings. A substantial number of drop. The large coil size also means a good ceilings have a 600mm2 grid, and many light fittings are designed to be accommodated FCU system Hybrid system within this. The hybrid can easily integrate into different types of ceiling, by the use of spacers or infill panels. Primary air ducted in ceiling We opted for the 200mm height as this is Slab 550mm typically the smallest depth that is achievable for a false ceiling. Other components – such as 250mm FCU recessed light fittings, sprinklers and sprinkler Ceiling void Hybrid heads, and chilled water or low pressure hot Return air via light Return air via light water pipework – are likely to cause the ceiling fittings or grilles fittings or grilles depth to be about 200mm. In residential projects, ceiling depths are often reduced to around 175mm. So it may be possible to Occupied space (not to scale) rearrange the floor sandwich to achieve a lower storey height. The outside air supply can be 200mm changed from ductwork in the ceiling to a floor Raised floor plenum, at a depth of 200mm. The ceiling void, used for return air, can be reduced from Primary air via underfloor void around 500mm to 200mm. With a floor-to- Slab: 300mm; ceiling void: 550mm; floor to ceiling: Slab: 300mm; ceiling void: 250mm; floor to ceiling: ceiling height of 2,750mm – and a structural 2,700mm; raised floor: 200mm; Total: 3750mm 2,700mm; raised floor: 200mm; Total: 3450mm zone of 300mm – this saving would reduce Showing how hybrid system reduces height required in ceiling void the storey height from 3.75m to 3.45m. This
58 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp57-58, 60 Arup skyscrapers v2.indd 58 21/10/2016 17:50 AQUAPACK ‘AP’ SERIES Heating and chilled water system pressurisation
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www.cibsejournal.com November 2016 CIBSE Journal 59
p59_CIBSEMagNov16.indd 59 17/10/2016 12:29 FAN COIL UNITS TALL BUILDINGS
gives the possibility of fitting more storeys in a free’; this means limiting the air velocity in given height. There is also merit in having an the occupied zone and, typically, air velocities air conditioning system that fits into the ‘tight below 0.25m.s-1 are found to be acceptable. spots’ that occur on building design projects. Measurement of the airflow pattern from The two greatest challenges to the project the hybrid shows that it closely resembles were making the fan behave in the required the pattern from a high induction swirl manner, and fitting all the components – coils, diffuser. CFD analysis of the airflow shows valves, controls, and condensate pump – into that comfortable draught-free conditions are the volume of 200mm height x 600mm depth achieved in every part of the occupied space. x 600mm width. A number of fan types and The hybrid can deliver heating as well arrangements were tried and tested, to obtain as cooling, and has a condensate collection optimum noise requirements, specific fan system and pump. The outline design for a power and the radial swirl air pattern. There simplified model office showed that three were multidisciplinary meetings to optimise FCUs could be replaced by four hybrid units. coil size and performance, and we tested As the hybrid does not require secondary multiple coil permutations, balancing cooling ductwork, there are cost benefits and sizeable capacity against the space required for air had an average heat load of 62W.m-2, rising time savings to be realised in installation, as distribution. The team made extensive use of to 90W.m-2 in perimeter zones, with a peak verified by independent quantity surveyors. CFD – combined with highly detailed CAD of 120W.m-2. The hybrid is capable of more We modelled the building using the Part L models – to increase the face area of the filters than 2kW per unit and can easily cope with compliance tool. We also modelled an FCU and heat exchangers to a maximum, while these cooling loads. The noise levels must system and tested the effect of the improved positioning ancillary components in areas be acceptable – typically NR35 for open-plan specific fan power of the hybrid. The hybrid where airflow is low. This minimised drag, offices. The indications are that, at one unit showed a 12% reduction in annual HVAC 2 wasted energy and sound emissions. per 25m of floor area, the noise will be in the energy, and a gain of three Breeam points.CJ The cooling capacity of the systems must be range of NR34 to NR38. Lower noise levels can sufficient to remove the heat that arises from be achieved by using more units running at a l ROGER OLSEN is an associate director at Arup internal and solar gains. The model building lower speed. The system must also be ‘draught
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60 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp57-58, 60 Arup skyscrapers v2.indd 60 21/10/2016 14:48 The best condensing hot water solution for every application High-efficiency water heating without compromising comfort level
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www.cibsejournal.com November 2016 CIBSE Journal 61
p61_CIBSEMagNov16.indd 61 17/10/2016 12:31 COST MODEL COMPARISON OF FAN COIL UNITS AND CHILLED CEILINGS
In this cost model – covering mechanical and electrical installations – Aecom’s specialist MEP cost managers examine the capital cost of fan coil units and chilled ceiling installations to a CAT A office within central London, to a single floor plate covering 1,600m2 net internal area
Two- and four-pipe fan coil unit (FCU) systems demonstrated across large floor plates, or with have been capital cost first, followed by thermal within the London commercial market have, repeated floors through the building. performance, with acoustic performance a traditionally, been the most popular choice of Despite the economic advantages that distant third. More often than not, occupant air conditioning in office developments. They FCUs appear to demonstrate – and their comfort is not even considered. have been regarded as the most commercially popularity among developers, agents and Many argue that chilled ceilings can go viable option from a development appraisal tenants – chilled ceilings are increasingly some way to filling the gaps left by FCUs. perspective. This holds particularly true for favoured by developers who wish to offer a This is because chilled ceilings can offer speculative office developments, where the differentiator from rivals. benefits that FCUs cannot in areas such as: end user and their requirements are often Tenants are also becoming more aware energy efficiencies; increased life expectancy unknown at the start of the project. Agents are of their space and its surroundings – how it of the air conditioning system; low ongoing more easily able to sell space to prospective affects their design requirements and their maintenance costs; increased occupant tenants because FCU technology is seen as a employees, and its impact on the environment. comfort levels; and, potentially, improved floor- tried and tested system. to-ceiling heights. Upon occupation, tenants can easily modify For and against The fight is not over between FCUs and the CAT A space to suit their CAT B design The argument for chilled ceilings seems to chilled ceilings, with fan coils becoming and requirements. FCUs offer flexibility and be gathering momentum within the London smaller, quieter and more efficient. In the a safety net for any future needs because they commercial market. In the UK construction past few months, developers have examined can easily be relocated to accommodate design market, fan coils are highly engineered, with an industrial look, exposing all the ceiling elements such as meeting rooms and breakout a lot of research and development behind pipes, ducts and wires. Aesthetically, fan spaces. Ceiling supply and extract grilles them. But the selection criteria for fan coils coils appear to lend themselves better to an can be relocated by extending flexible duct connections to suit design layouts. Similarly, the space can be put back to its original layout once the tenant vacates. The commercial argument for FCUs is further strengthened by the sheer number of manufacturers and the range of units that are available. Improvements in the industry mean a wide range of design issues – such as shallow ceiling depths or the desire for exposed services – can now be Chilled panels accommodated. Additionally, mechanical Passive chilled beam and electrical contractors are familiar with the Active chilled beams technology, and real economies of scale can be Chilled ceilings and FCUs are under increasing competition from chilled beams
62 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp62-63 Cost model.indd 62 21/10/2016 14:43 Cost model chilled ceilings and Fan coils fz to
mmy / S Category A works Based on NIA of 1,600m² hutters Fan coil units Chilled ceilings to
ck Condensate disposal £9,000 N/A Copper pipework, discharge to shell-and-core installations (£5.62/m2) Fan coil units £64,000 Combination of four-pipe fan units to perimeter zones and two-pipe to N/A (£40/m2) internal zones Chilled-ceiling installations £264,000 N/A Chilled installation complete (£165/m2)
Ductwork £59,000 N/A Primary and secondary ductwork, insulation, fittings, etc (£36.88/m2)
Ductwork £28,000 N/A Primary fresh air ductwork, insulation, fittings, etc (£17.50/m2)
Grilles and diffusers £19,000 N/A Supply and return (£11.88/m2)
Grilles and diffusers £18,000 N/A Return air grilles (£11.25/m2)
LTHW pipework £51,000 N/A Insulation, valves, fittings, etc (£31.88/m2)
LTHW pipework £46,000 N/A Perimeter trench heating insulation, valves, fittings, etc (£28.75/m2)
exposed services solution, but the industrial CHW pipework £57,000 2 N/A look – which has become highly desirable – Insulation, valves, fittings, etc (£36.63/m ) comes at a cost because additional acoustic CHW pipework £48,000 N/A measures may be required for ductwork and Connections to chilled ceilings, insulations, valves fittings, etc (£30/m2) fan coil casings. The jury is still out on whether Power £8,000 N/A the cost of the additional time and resource Small power to FCUs (£5/m2)
required to make the exposed services a design Controls £37,000 N/A feature is cost effective. BMS to FCUs (£23.13/m2) There has been a great deal of discussion Controls £40,000 N/A recently, in the trade press and trade BMS to chilled ceilings (£25/m2) associations, about which option offers the best Builders’ work in connection £9,000 £12,000 technical, commercial and energy efficiencies Including fire stopping at 3% of services installations (£5.65/m2) (£7.50/m2) for a commercial client. Outside of capital Ceiling installations £64,000 N/A cost considerations, chilled ceilings appear CAT A suspended ceiling (£40.00/m2) to offer an alternative to fan coils, but there is £377,000 £456,000 increasing competition from chilled beams Total cost (£235.63/m2) (£285/m2) (active or passive), chilled rafts and embedded chilled-mat technologies. coils and chilled ceiling options is one person Cost model per 8m2 of NLA. The chilled ceiling is a fully The cost-model comparison considers the capable active system, providing the required components associated with the two air cooling output, so no supplementary cooling ABOUT THE AUTHORS conditioning options only – it does not include is needed. This cost model was written by elements such as lighting, fire detection and Costs are base dated on first quarter2016 Joshua Stallard, trainee surveyor, fire protection, which are normally included and the prices used are reflective of a project and Garry Burdett, director, both at Aecom engineering services – as part of a CAT A cost. The model is based on procured through a competitive two-stage whose cost management group a speculative central London office, arranged tender process. The cost model does not specialises in the cost estimating, over 15 floors, with two basement levels. consider the effects – or perceived effects – of procurement and cost In the cost model, we are considering a Brexit. It includes subcontractor preliminaries, management of building services installations. typical mid-level floor plate CAT A fit-out, with testing and commissioning, and builders’ a net lettable area (NLA) of 1,600m2 (about work in connection only. Costs to complete 17,222ft2). The building has been designed to the services fit out beyond a CAT A standard, comply with Part L and to achieve a Breeam professional fees, tenant enhancements and Excellent rating. The occupancy for both fan VAT are excluded. CJ
www.cibsejournal.com November 2016 CIBSE Journal 63
CIBSE Nov16 pp62-63 Cost model.indd 63 06/12/2016 12:35 NEW CONCERTOR PUMPING SYSTEM WITH INTEGRATED INTELLIGENCE
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p64_CIBSEMagNov16.indd 64 17/10/2016 12:31 HEAT NETWORKS LEGIONELLA PREVENTION PREVENTION OR CURE There are two options when it comes to safeguarding low-temperature district heating systems from legionella – safe design or sterilisation treatments. Xiaochen Yang, Hongwei Li and Svend Svendsen, from the Technical University of Denmark, look at the options
system, the rules on operating temperatures may well be stricter, considering the temperature drop throughout the distribution network. The potential options to ensure legionella- safe conditions can be divided into two categories: alternative designs of the DHW system and sterilisation treatments.
Alternative designs for water supply systems The LTDH-supplied DHW system should be able to deal with the main risk factors of legionella proliferation – insufficiently high temperatures and extended periods of stagnancy. The alternative design method focuses on boosting the local temperature and minimising the volume of domestic hot water.
Decentralised substation system The main component of the decentralised substation system is the instantaneous heat exchanger unit installed at each home. It is designed to meet both the space-heating and DHW demand. Unlike the centralised system, the ow-temperature district heating decentralised substation option heats DHW (LTDH) with target supply and locally, so minimises the total DHW volume. return temperatures of 55°C and The energy efficiency is also improved by 25°C can help to improve the energy avoiding unnecessary heat loss. Lefficiency of the district heating grid and achieve a more sustainable energy system. Micro heat pump However, concerns about the reproduction The micro heat pump system uses a micro of legionella bacteria in the domestic hot heat pump unit to elevate the DH supply water (DHW) heated by the LTDH provides temperature. The heat source can be a challenge. from either the DH supply or the return, Legionella bacteria commonly exist in depending on the installation. Sterilisation methods should both natural and manufactured aquatic The DH supply temperature can be meet the local requirements ecosystems. Most countries have a required more flexible with the heat pump, and operation temperature for the DHW a wider range of low-temperature heat for water quality and water system – mostly above 55°C – to prevent sources can be considered. Also, the DH regulations, and work stably the reproduction of legionella. In terms of return temperature can be reduced if in the hot water system the district heat- (DH-) supplied hot water configuration b (Figure 2) is applied, which
www.cibsejournal.com November 2016 CIBSE Journal 65
CIBSE Nov16 pp65-66, 68 Safe HWS in heat network.indd 65 21/10/2016 15:18 HEAT NETWORKS LEGIONELLA PREVENTION
helps improve the energy efficiency of the DH system. However, this will reduce the DS DHW coefficient of performance (COP) of the heat pump because of the greater temperature DCW difference. Key DS – decentralised substation DHW – domestic hot water Electric supplementary heating SH S DCW – domestic cold water This system is also based on temperature SH S – space heating supply elevation and the specific implementation SH R – space heating return SH R will depend on whether a storage tank DH – district heating is installed. The storage type can help DH to reduce the peak load in the DH grid. However, there will be more heat loss Figure 1: Schematic of decentralised substation system compared to the direct electric heater because of the storage tank, with the set- Careful planning and execution is point temperature of the consumer’s storage required to make sure the required tank >60°C to prevent legionella. temperature can reach the end of every Another type of electric supplementary branch in the system. heating is electric heat tracing. The electric heat tracing cable attached to the DHW Chemical treatment supply pipe is used to heat DHW to the Chemical treatments kill legionella by required temperature after being preheated either injecting chemical agents – such as by LTDH. A storage tank – and potentially ionisation, chlorine or chlorine dioxide – domestic hot water recirculation – would into the water, or activating the oxidisation not be required for such a system. For large as if by sunlight (UV light, photocatalysis). hot water systems, the electric heat tracing option can save almost 30%1 of distribution A DHW heat loss caused by circulation. Evaluations of the alternative designs and suitable building types for implemention are listed in Table 1. TANK
DH S Sterilisation methods DCW These can be divided into three categories: thermal treatments, chemical treatments, DH R and physical treatments. Any sterilisation method should meet the local requirements for water quality and water regulations, and B work stably in the hot water system. DHW
Thermal treatment L. pneumophila in water can be killed by TANK high temperatures, with the time required DH S to do this related to the temperature – for DCW example, 70°C for 10 minutes and 60°C for 25 minutes.2 Note, however, that even these DH R
high temperatures will have limited efficacy Figure 2: Schematic of micro heat pump system with DH supply on any biofilm. flow as heat source (A) or DH return flow as heat source (B)
Table 1:
Building type Circulation Energy source for Installation & Investment Approach Solution applicable in required hot water operation difficulty cost
Decentralised Volume restriction New No DH Complicated High substation Micro heat pump Existing/new Yes DH + electricity Medium High
Local temperature Heating element Existing/new Yes DH + electricity Simple Medium elevation
Electric heat tracing Existing No DH + electricity Simple Low
Evaluation of the alternative design methods
66 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp65-66, 68 Safe HWS in heat network.indd 66 21/10/2016 15:18 Larger spaces to heat? We’ve got some big ideas.
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www.cibsejournal.com November 2016 CIBSE Journal 67
p67_CIBSEMagNov16.indd 67 17/10/2016 12:32 HEAT NETWORKS LEGIONELLA PREVENTION
Conclusion This study has suggested several solutions DH S for preventing the potential risk of legionella in the LTDH-heated hot water system. From the alternative system design methods, the decentralised substation option is recommended for new buildings because of the high energy efficiency. For existing buildings, electric supplementary heating DH R DHW is recommended, because it is more flexible with the DH supply temperature DCW and simpler to install. When it comes A to sterilisation methods, the chemical treatments are more economical, but should DH S DHW be operated meticulously, following water El-heater quality regulations. CJ
● Further details DH S The full paper, A study that considered the available methods of supplying safe domestic hot water using heat from a low temperature Heat exchanger DHW district heating system, is available in BSERT at B http://bse.sagepub.com. CIBSE members DH R DCW always have free access to the online BSERT DH R HEX DCW edition through the CIBSE Knowledge Portal at Figure 3: Schematic of electric supplementary heating system (A) storage type and (B) direct type Figure 4: Schematic of electric heat tracing solution www.cibse.org/Knowledge
References: The use of chemical biocides requires 1 Yang X, Li H, Svendsen S, ‘Modelling and multi-scenario analysis for electric heat tracing meticulous control to maintain effective system combined with low temperature district concentrations without violating water heating for domestic hot water supply’, Building quality requirements. Simulation, 9 (2016), DOI: 10.1007/s12273-015- 0261-4. Physical treatment 2 Stout JE, Best MG, Yu VL, ‘Susceptibility of members This mainly refers to membrane filtration, of the family legionellaceae to thermal stress: Implications for heat eradication methods in water which prevents the micro-organisms from distribution systems. Applied and Environmental getting into the protected system. Physical Microbiology, August 1986, 52(2), 396-9. treatment can work effectively; however, to maintain the high efficacy of the filter, it has ● to be replaced regularly. XIAOCHEN YANG, HONGWEI LI and SVEND SVENDSEN, civil engineering department, Technical The evaluations of different sterilisation University of Denmark. Email [email protected] methods are listed in Table 2.
Table 2:
Operation Additive to Investment Feasibility & Methods Efficacy Effective level activity water system cost regulations
Thermal Temperature & Heat flushing Short-term operation time No Low System No limits treatment control
Ionisation Long-term Residual control Yes Medium Local A+B
Chlorine Long-term Residual control Yes Low System A Chemical Chlorine dioxide Short-term Residual control Yes Low Local A treatment Photocatalysis Long-term Residual control No Medium Local No limits
Ultraviolet light Short-term Non-specific control No Medium Local No limits
Physical Filtration Short-term Non-specific control No High Local No limits treatment
Evaluation of the different sterilisation methods A = the concentration of the agents must comply with local water-quality regulations B = not applicable in some countries
68 CIBSE Journal November 2016 www.cibsejournal.com
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70 CIBSE Journal November 2016 www.cibsejournal.com
p70_CIBSEMagNov16.indd 70 17/10/2016 12:35 ESCO CHP INSTALLATION
RISK AVERSE A CHP contract can help meet CO2-related building hot water. Prices are not guaranteed, but the discount from the electricity and heat tariffs is regulations, with zero capital outlay. Paul Hamblyn, of guaranteed within the contract ; if the contract EuroSite Power, explains how system capital expenditure stipulates a 10% discount, Flitwick will always costs can be built into customer utility tariffs receive a 10% discount, irrespective of the actual tariffs. By delivering a CHP installation in this way, 100kWe combined heat and power the ESC o is helping both the end user and the (CHP) system has been installed building’s developer, Central Bedfordshire a t Flitwick Leisure Centre – a Council, to achieve the CO2 target emissions recently completed new-build rate (TER) defi ned by Part L2A of the Building Aproject in Bedfordshire. Under the terms of Regulations 2010 in England and Wales. the 15-year agreement, the CHP system was These require building designers to consider funded by energy service company (ESC o) the technical, environmental and economic EuroSite Power. It will also operate and feasibility of using high-effi ciency alternative maintain the unit throughout the term of the heating systems – including CHP – to meet contract, with the costs built into the utility the TER. tariffs charged to the customer. EuroSite Power's 100kWe CHP system is Flitwick Leisure Centre buys the energy designed to produce up to 1,373,787kWh of produced by the system from the ESC o, at energy (electrical and heat) per year, while a guaranteed lower rate than if it bought reducing CO2 emissions by 249 tonnes – electricity in the traditional manner or used equivalent to taking a bout 50 cars off the road conventional boilers to produce its heat and each year.
www.cibsejournal.com November 2016 CIBSE Journal 71
CIBSE Nov16 pp71-72, 74 CHP Euro Site.indd 71 21/10/2016 15:38 ESCO CHP INSTALLATION
Although the company has extensive experience of providing CHP systems retrofitted to leisure centres in the UK, this was its first installation on a new-build project. As well as ensuring compliance with UK Building Regulations in relation to energy efficiency at the time of installation, the solution guarantees savings for the customer throughout the term of the contract. It also reduces build cost because it is funded by the ESCo. One of the key benefits to the customer of sourcing CHP through an onsite utility solution is that the provider bears all the risk for the CHP delivering the energy savings required. So EuroSite uses stringent specification processes to ensure the system is fit for purpose and will deliver the In April 2014, then Mayor of London, Boris performance required to ensure guaranteed Johnson, published Sustainable Design and savings to clients. Construction SPG (Supplementary Planning In the Flitwick installation, the CHP is fully Guidance). Set out as part of the mayor’s20 :20 integrated with the building’s other services Vision, the target is to reduce London’s overall and, more importantly, was considered within carbon dioxide emissions by 60% by 2025, and the original design intent of the building, its to reduce air pollution across the city with a Simplified Building Energy Model (SBEM), or resilient low carbon infrastructure. similar calculations. To optimise performance, In relation to CHP plants, the SPG – at its the unit is sized correctly, to the exact most stringent – states that, where spark- requirements of the client, without resorting to ignition gas CHP plants are installed in money-wasting heat-rejection systems. commercial and domestic buildings, they
should achieve a NOx rating of <95mg NOx/ Future-proofing Nm3. These emission standards relate to all Delivering CHP in this way provides future- developments in London where a CHP plant is proofing for end users, who might be nervous proposed. Similar requirements apply to other about investing in equipment that could CHP technologies, and there is a tightening become out of date before it has delivered of requirements for conventional boilers. The returns in energy savings. Ultra-low emissions SPG also states that these standards will be regulations planned for London and the kept under review and updated in line with The CHP is fully integrated European Union are one example of future- technological and commercial advances. with the building’s other proofing requirements that mean energy The European Medium Combustion Plant managers face the challenge of ensuring Directive – set to come into effect by the end services and was considered compliance of CHP systems with even the of the decade – will impose further strict within the original design strictest future emissions standards. emissions regulations that will affect CHP intent of the building
Gas supply Electricity to main switchboad Flitwick CHP schematic Site boilers
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72 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp71-72, 74 CHP Euro Site.indd 72 21/10/2016 15:39 DON’T JUST TAKE OUR WORD FOR IT
CIBSE is passionate about providing better building services, better building performance and a better future for coming generations; together, we can make a difference. Whether you are in the early stages of your career, are an established building services engineer, or are one of the many other professionals working to deliver excellence in the built environment, we are here for you.
I would encourage any CIBSE will continue to applicant, particularly play a big part in my ongoing international ones, to approach development as a building CIBSE for any challenge that they services engineer. Achieving IDFHDQG,·PFRQÀGHQWWKDWWKH\ LCIBSE EngTech was a major will receive excellent support. milestone in my career and the Antone Maria ACIBSE IEng, United Nations next step for me is to seek 0GmDFGPS1SPKFDU4FSWJDFT 6/014 ACIBSE IENG status with CIBSE. Leah Jarvis LCIBSE EngTech, Hoare Lea
0&,%6(GHÀQLWHO\ERRVWV \RXUFRQÀGHQFHDVD Being part of CIBSE at building services engineer and is any grade helps you as recognisable worldwide. I feel this an individual gain credibility is a great asset. within the industry as all CIBSE Dave Brown.$*#4& #BJMZ(BSOFS--1 members have to adhere to the FRGHRIFRQGXFW WKLVFRQÀUPV you are operating at a level of professional competence. On a personal level, CIBSE MCIBSE CEng, Hoare Lea has enabled me to meet and James Outram socialise with like-minded professionals, to share knowledge and experience. Wally Gilder FCIBSE, Chairman ILEVE, Flextraction Ltd
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p73_CIBSEMagNov16.indd 73 17/10/2016 12:36 ESCO CHP INSTALLATION
systems. Although still under consultation, Looking further ahead the emissions levels permitted under the Some CHP manufacturers are yet to directive are likely to mirror those being bring cost-effective solutions to market imposed in London. With such strict to meet tightening emissions standards, standards pending – and with a potential for but appropriate future -proof technology is these to be reviewed and made even stricter available. With stricter emissions standards – it is essential that CHP providers ensure already in place in the US, natural gas, engine- technology is future-proof . driven CHP systems have been developed Under such schemes, the provider installs to operate with the extremely low levels of and maintains the CHP system, and tak es regulated pollutants allowed by the distributed responsibility for all costs, including for generation regulations 2007 , set by the operations ( encompassing the gas used by the California Air Resources Board (CARB). system), maintenance and repair. It then sells The systems use power-generation the electricity and heating to the customer at technology made possible by recent advances a price that is fi xed for the life of the contract and cost reductions in power electronics – usually 15 years – with a typical cost saving (variable speed drives) and magnetic motor/ of 10%. The provider takes on the technical generator materials (hybrid vehicle drive risk of selecting the correct equipment and systems). This provides a natural gas-fuelled meeting any regulatory requirements, such as CHP module, rated at 100kWe continuous emissions or air quality standards. All risk is electrical output, while simultaneously borne by the CHP provider, not the user. producing 205kWt of hot water that – when It can be in the interest of the Some companies bear the risk (and costs) all the recoverable heat is used – delivers an 90 ESCo to mitigate equipment of the technology meeting regulations for the overall effi ciency of %. next 15 years, whereas others that sell capital An example of recent technology includes redundancy by exceeding equipment – or those funded by some form low-emissions natural gas engines, which current regulatory standards of grant – may not bear this risk. It can be in drive a permanent magnetic generator (PMG). when installing plant the interest of the ESC o contracted on a long- The engine is operated over a wide speed term agreement – as well as the client and the range, depending on the load requirement, environment – to take steps to mitigate the while the power electronics convert the risks of equipment redundancy by exceeding variable frequency output from the PMG to current regulatory standards when installing high-quality power suitable for use throughout plant. Then, as part of the responsibility for Europe. Variable speed operation maximi ses ensuring ongoing performance in line with fuel effi ciency under part-load conditions. contracted guarantees, equipment will be Such technical details may be beyond the upgraded as necessary. expertise of many buildings managers, but This ongoing ‘relationship’ with the installed where the CHP provider takes responsibility equipment makes it a more sophisticated for the system’s performance in the long term, and in-depth process than simply installing the customer is safeguarded against changes equipment that is ripped out and replaced in regulatory requirements. CJ at a later date. In some cases, there may still be effi ciency and operational benefi ts from ● PAUL HAMBLYN is managing director of EuroSite Power and a council member of the Energy Services and plant replacements during the period of Technology Association (ESTA) contractual obligation.
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p75_CIBSEMagNov16.indd 75 17/10/2016 12:37 PIPE DREAMS Heat-pipe technology – widely used in hot, humid countries – transferring heat passively from one place to another. So heat pipes can be used to improve can also enhance dehumidification in Britain’s less extreme dehumidification significantly, without any climate. Citing an installation in a UK hospital, SPC’sRichard additional energy input. Meskimmon says payback periods can be less than three years Long used, successfully, for this purpose in hot and humid environments – such as in the Middle East – the technology can n its simplest form, a heat pipe is a sealed also enhance dehumidification in more tube – usually made from copper – which temperate zones, without unjustifiable is evacuated and charged with a working capital expenditure. fluid. For HVAC purposes, this is usually The UK climate means high humidity Ithe refrigerant R134A, although a greener, is a problem only on a handful of days per more efficient solution uses water. year, so conventional air conditioning is With a heat pipe, heat is absorbed from the often considered a satisfactory solution. But incoming warm air stream in the evaporator the desire for increased energy efficiency is section, boiling the working fluid. Elevated driving a move towards systems that rely on pressure moves vapour rapidly to the cooler, the control of space humidity. condenser section of the heat pipe, carrying With chilled beam air conditioning, for the absorbed heat with it. example, less air movement is required, As the vapour reaches the condensing area so energy is saved, but such systems rely of the heat pipe, heat is released to the cooler on the close control of humidity for correct air and the vapour condenses – the liquid operation. Chilled beams are sensible returning, by gravity, to complete the cycle. cooling terminal systems, where moisture Heat is absorbed from the incoming warm air The entire heat-transfer process occurs with cannot be allowed to condense because the stream in the evaporator a very small temperature difference along cooling surface is generally exposed above section, boiling the working fluid the pipe, and is the most effective method of the occupied space. For them to function
76 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp76-78 SPC Heat pipes.indd 76 21/10/2016 15:46 HEAT PIPES DEHUMIDIFICATION VILEVI / SHUTT E A UK hospital has temperature – to remove moisture – and made a cost saving of then reheated, which imposes a significant £27,000 using heat pipes energy penalty. RSTOCK The direct method involves desiccants, and the process requires continual regeneration. It is used for very low humidity control and only becomes economical for air conditioning applications if a source of thermal energy is readily available. Heat pipes can be used to treat the outside air in a more energy efficient manner. Cooling coil enhancements are made to match the SHR of the process to the load SHR. Wraparound heat pipes allow passive transfer of heat around the cooling coil, and air is precooled upstream and reheated downstream. The SHR of the heat pipe/ cooling coil combination is lower than for a conventional cooling coil, so can be considered as an enhanced cooling/ dehumidifying coil. 28kW cooling Based on design conditions, the conventional cooling rate is 28kW for each m3/s of airflow, and the reheat rate is 6kW (Figure 1). The addition of a heat pipe reduces the cooling rate to 22kW and reheat to zero (Figure 2). Up to twice as much condensate can be produced, taking the humidity of the recycled air well below the level that could be achieved by the cooling
coil alone. 6kW reheat The heat pipe will only function when Figure 1: Conventional cooling and dehumidifying the cooling coil is operating, so the number process showing cooling and reheat loads of operating hours will be limited by the UK climate. But the use of heat pipes for Heat pipes have no dehumidification in the UK can be justified through return on investment (ROI)/payback Heat pipe 22kW cooling moving parts to break or reheat wear out, so are virtually analysis. We have a recent example where heat pipes were incorporated to improve maintenance free – indeed, dehumidification at a hospital with a chilled they will probably outlast beam system, and the payback period was the HVAC equipment less than three years. In terms of payback and energy savings, calculations must be based on true properly, therefore, the outside air needs to be installation costs and accurate annual Heat pipe reheat efficiently conditioned. weather data. Capital costs associated with Building occupants benefit too; keeping the heat pipe are both the cost of the heat pipe Figure 2: Enhanced cooling and dehumidifying process using heat pipes air quality within the optimum zone of itself, and its installation cost within the air 40-60% relative humidity makes people handling unit (AHU).
more productive and results in fewer days It is important to allow for the lower capital 23/18.4°C 12.5/12°C lost through illness. However, traditional costs associated with reducing the size of dehumidification – which can be indirect or cooling plant and ancillaries; the use of heat direct – poses issues. pipes results in lower chilled water rates, With indirect methods, air is cooled below leading to smaller chiller plant, pipework and its dew point – usually achieved using a pumping equipment. chilled water-cooling coil or direct expansion The reduction in installed chiller plant (DX). A typical sensible heat ratio (SHR) for size is equal to the rate at which the heat 80 cooling coils is %; if the process requires pipe provides precooling at the maximum 28/20°C 17.5/14°C lower values, the dry bulb temperature of design condition. This is a capital cost saving Figure 3: Arrangement of cooling coil and the air must be reduced below its supply irrespective of the number of operating wraparound heat pipe
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CIBSE Nov16 pp76-78 SPC Heat pipes.indd 77 21/10/2016 15:46 HEAT PIPES DEHUMIDIFICATION
Case study: £27K cost saving with heat pipes
A hospital in the UK is undergoing extensive G Annual cooling energy cost saving: £13,508 redevelopment of its facilities. G Annual heating energy saving: 346,371kWh Chilled beams have been installed in G Annual heating energy cost saving: £13,855 critical areas, but the existing chiller plant G Total annual energy cost saving: £27,363 was of insufficient capacity to provide the G Payback: 2.9 years necessary dehumidification, with an 8.5°C Wrapround heat pipe and cooling coil dew point required in some areas. The analysis uses the following The inclusion of heat pipes in the design assumptions: hours. The reheat plant capital cost is unlikely has enabled the existing chillers to realise the G Cost of electricity: 13p/kWh to be affected, as it will be required for winter required dehumidification. It has also helped G Cost of fuel for reheat: 4p/kWh operation, with or without heat pipes. It’s also the hospital to achieve an annual energy cost G Coefficient of Performance (COP) of important to consider that heat pipes have saving of £27,363, with a payback of cooling plant: 3 no moving parts to break or wear out, so are 2.9 years. G Efficiency of boiler plant: 90% virtually maintenance free – indeed, they will G Cost of cooling plant: £200/kW probably outlast the HVAC equipment. Project details Heat pipes have been widely used for G 33 outside AHUs In this instance, copper tubes and fins, dehumidification in hot and humid countries G Total outside air load: 64.41 m3/s and stainless steel casings, were used for many years. We believe the technology can G Total heat pipe precool saving: 355.4kW in accordance with Health Technical be employed just as successfully in the UK’s G Installed cooling plant capital cost saving: Memorandum (HTM) guidance. A standard less extreme climate. CJ £71,080 construction of aluminium fins and G Total heat pipe installed cost: £149,843 galvanised steel casings for the heat pipe l RICHARD MESKIMMON is technical G manager at SPC Net capital cost: £78,763 would roughly halve the cost – hence the G Annual cooling energy saving: 103,911kWh payback period.
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p79_CIBSEMagNov16.indd 79 17/10/2016 12:38 CPD PROGRAMME
Professional development The CIBSE Journal CPD Programme
Members of the Chartered Institution of Building Services Engineers (CIBSE) and other professional bodies are required to maintain their professional competence throughout their careers. Continuing professional development (CPD) means the systematic maintenance, improvement and broadening of your knowledge and skills, and is therefore a long-term commitment to enhancing your competence. CPD is a requirement of both CIBSE and the Register of the Engineering Council (UK). CIBSE Journal is pleased to offer this module in its CPD programme. The programme is free and can be used by any reader. This module will help you to meet CIBSE’s requirement for CPD. Equally, it will assist members of other institutions, who should record CPD activities in accordance with their institution’s guidance. Simply study the module and complete the final page questionnaire, following the submission instructions. Modules will be available online at www.cibsejournal.com/cpd while the information they contain remains current. You can also complete the questionnaire online, and receive your results by return email.
Offsite manufacture for building services
This module considers the benefits of offsite production for building services applications
The application of offsite production in waste on a typical ‘conventional’ construction building services has been enabled through is 10-times that of an industrialised factory, the convergence of improved information and that factory CO2 emissions and embodied handling – particularly using tools associated energy for the same built process can be more with building information modelling (BIM) than 55% lower. – and enhancements in manufacturing and the supply chain. This CPD will explore the Offsite symbiosis benefits of applying offsite production for A key benefit of intention to use offsite building services applications. construction methods is that it converges with Offsite fabrication has been the norm the timescale introduced with projects that are in many industries where ‘just in time’ delivered using the concepts associated with supply chains allow the construction of building information modelling (BIM). It is near-identical complete products, making widely acknowledged that for BIM to deliver savings through: reduced holding of stock; benefits throughout the construction process, smaller warehousing requirements; reduced the design must be brought further forward in
waste; improved recycling of materials; Figure 1: A fully assembled boiler skid including the overall process than has been traditionally faster response to innovation; and lower cost. controls delivered to site the case – this is also often a prerequisite for But, of course, the building services world successful offsite prefabrication. As offsite has historically had its roots firmly based in boiler/control/piping assemblies; and construction will inevitably bridge disciplinary delivering a bespoke system, created on site complete boiler plantrooms. boundaries – for example, mechanical, to meet an often imprecisely defined building Offsite construction – the part of the electrical, lighting, civil, structural and shell – potentially where prefabrication would construction process that is carried out architectural – it, by necessity, promotes have been impractical (and require significant away from the actual building-site location multidisciplinary working. site adjustments) or impossible. However, – is a growing sector, with rapidly changing The enhanced planning and collaboration with improved building definition earlier technology. It now accounts for at least delivers productivity gains on and off the in the design phase, offsite construction 3-4% of the UK construction sector and can site, and reduces the dependence of site is becoming increasingly common – for represent up to 80% of the construction cost supervision and high-level site skills. This example, with ductwork fabrication; pre- for some projects.1 can increase site productivity, as well as assembled and pre-wired pump sets; Investigations undertaken by the Waste and enhance the quality of installation – thereby bathroom pods; pre-assembled and pre-wired Resources Action Programme (WRAP)2 – as reducing subsequent snags and consequent fan coil cooling units with controls; integrated reported by BESA1 – indicate that the material maintenance issues.
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CIBSE Nov16 pp81-84 CPD v2.indd 81 21/10/2016 15:46 Effective use of offsite construction requires a programme rather than a project- management approach, as strategic resource management across the various work packages is essential to achieve a common aim. It is a more holistic and strategic approach that integrates the supply chain within construction. For a successful implementation, manufacturers and installers need to be consulted at the design stage, because the earlier in the process offsite construction methods are specified, the greater both the time and cost savings, and the environmental benefits. For example, insulation and surface protection can often be added in the factory rather than on site. Reduced time on site is a major benefit, and 50 75 1 Figure 2: The model and savings in the range of - % have typically construction drawings for the been reported. The number of people working boiler skid for figure 1 on site at any one time is also reduced, giving a potential total reduction in site hours of 60- solutions where a number of services that of heating, power, air and water for testing 80%.1 Programme certainty will be improved, share the same physical zone are split between being provided at the factory workstation. because of the removal of some of the site- distinct supply packages. Offsite production is reported to deliver a based uncertainties, with reduced abortive Designs need to be completed and set at significant reduction in waste compared to work and defects, prelims and site overheads. an early stage to allow effective use of offsite traditional construction. Fewer components Offsite applications can be categorised in construction. Late design changes or variations need to be delivered to the site, so there is likely many different ways and, when considering could have undue cost and time consequences to be a 60%1 reduction in vehicle movements, the mechanical electrical prefabricated that can outweigh the benefits of using an as one truck that can contain substantial assemblies, a term that is often adopted is offsite approach. prefabricated, complete modules is equivalent ‘non-volumetric preassembly’3 – such as Refurbishment projects do not preclude to around 38 white van deliveries. The impact the domestic hot water pressure booster this approach. However, modules are likely on the local environment – both on the ‘skid’ of Figures 1 and 2 – where the factory- to be smaller, as they will need manoeuvring site and within its environs – is reduced, as assembled system is not considered as through existing structures. At a basic level, there is less packaging, noise, and general enclosing usable space. even premanufacturing small subassemblies emissions. These will have been moved back – such as boiler/control/valve sets and support to the ‘factory’, where the scale of production A prefab culture bracketry – can provide significant benefits. will allow for far greater efficiencies in For offsite to succeed, there must be timely environmental control measures, materials supply-chain engagement, and collaboration Healthy and sustainable and staff management. between consultants, contractors and The reduced time on site is also likely to reduce manufacturers. Some may be unwilling to accidents; in manufacturing, accident rates are Handling and installation commit to offsite delivery at early design stage, 29% less for major injuries and 52% less for Large prefabricated sections require heavy- as they are not sure that this approach will fatalities4, so if construction were to become duty cranes and precision handling to be be cost effective. Comparison cost advice on more like a manufacturing exercise as a result placed in position. The predictability that traditional versus offsite is not readily available of the widespread take-up of offsite methods, offsite brings enables better planning of site to inform early decisions, so it is important there could be a reasonable expectation of a activities, including the equipment and timing for clients, designers and contractors to significant reduction in recordable incidents. required for installation. With good planning, understand that designing for offsite delivery Offsite can provide cleaner work the use of heavy equipment – as well as other does not preclude traditional construction, conditions, with lower risk of trips, slips specialised tools – can be adopted with greater while the opposite may not equally apply. and falls, particularly as working at height efficiency. The availability of the type and Traditional design processes tend to result is reduced. Manual handling and lifting is capacity of cranes and other lifting devices will in the late development of building services reduced too, as materials are mechanically vary through the project programme, and be designs, not allowing adequate time for moved to the safe, controlled, weatherproof affected by site constraints. detailed design before fabrication. A late production space. The factory environment Integrating services modules into the main decision to adopt offsite solutions can lead can be properly designed, with purpose-made construction programme can take advantage to inappropriate procurement strategies, workstations, appropriately maintained of tower cranes’ increased site coverage and such as the lack of consideration for how protective equipment and the correct tools to capacity. This will provide the opportunity to the building services packages are going hand, rather than working in often confined allow multistorey riser modules that – when to be delivered early enough in the design site spaces. As there will be a reduced used with temporary (removable) roofing process. A procurement strategy that separates need for onsite commissioning, the risk of and weather-protection systems – can even elements of building services into packages electrocution, scalding, and other injuries is be craned in after the main structure is may, for example, prevent the delivery of offsite reduced, with appropriately controlled sources completed. The structural loading of floor
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CIBSE Nov16 pp81-84 CPD v2.indd 82 21/10/2016 15:47 CPD PROGRAMME
and roof slabs needs careful consideration, project (or multiple projects), this will benefit as modules are routed into position. Roof capital expenditure (capex) and operating plantrooms are usually completed after tower expenditure (opex), as the modules can be cranes have been removed, and can use more readily integrated into the operation and mobile or crawler cranes. The space between maintenance procedures. the building’s structural components may The financial benefits may not always be determine the maximum size of prefabricated obvious – for example, an airport operator, by modules that may fit safely without risking adopting offsite prefabrication, aimed to take damage to the plant or the building. So, 80% of the mechanical and electrical labour for example, incorporating a boiler header offsite, as security checks were taking up to assembly in two parts may allow it to be two hours at peak start times. included in modular plantrooms rather than Maintaining a close collaborative being built in situ. The packaged boiler and relationship between consultants and domestic hot water (DHW) module of Figures the manufacturers can achieve great 3 and 4 can be separated on site, so that it can improvements in productivity, by optimising be moved through standard door openings. offsite solutions through innovations in In the increasingly collaborative manufacture and site operations – including environment being encouraged by BIM, Figure 3: The packaged boiler skid product and process standardisation, mass computer models can be developed in such a customisation and continual improvement. way that the offsite modules are individually ‘Documentation’ – through BIM- brought into the model in the sequence that enabled links or in traditional digital the construction process intends. BIM can or paper format – for handover can drive the project plan and visualisations of be rather more precisely developed module deliveries and installation, which for modules that can then enable might include crane operations and improved facilities management tracing the route that modules will take and enhanced life-cycle operation. through the facility to reach their final © Tim Dwyer, 2016. destination. Further reading: Commissioning and Limited guidance has been produced operation relating to offsite for the building services industry. BESA, however, has an offsite While distribution systems will need guide1 that has been used (with permission) to be connected on site before they as the foundation of this article – and can be commissioned, more complex where data and information is quoted plantrooms and passenger-moving systems without further reference, it will have been drawn from that publication. The buildoffsite may, largely, be commissioned before delivery. Figure 4: The model of the packaged boiler skid website (www.buildoffsite.com) has several For example, pumps can be run/flow-tested useful publications, including Offsite Construction: on test rigs, and controls can be proven. It The storage required on site (and its Sustainability Characteristics and Building Offsite – may be feasible to start commissioning on a inherent costs) will be reduced, as modules An Introduction. zone-by-zone basis once sufficient modules can be delivered directly to their final position. References: have been installed and the building envelope Significant cash-flow benefits can arise from 1 An offsite guide for the building and is made weather-tight. Offsite manufacture early completion and, consequently, early engineering services sector, BESA (formerly in a controlled environment enables the occupation. This can also offer considerable B&ES), 2015 supplier to maintain the cleanliness of financial benefits for clients, as early 2 The Waste and Resources Action Programme, pipework, reducing the need for flushing guaranteed handover and occupation could www.wrap.org.uk during commissioning. With modular wiring, be crucial in sectors where business is time- 3 Gibb, A, Offsite Fabrication: Prefabrication, Pre- it is advisable to test the whole system once critical, such as airport, healthcare, educational assembly and Modularisation, Wiley 1999 connected, rather than its sub-elements. or retail buildings, where site availability, or 4 Krug, D et al, Offsite construction: Sustainability space for storage, may be limited. Offsite is Characteristics, buildoffsite, 2013 Cost savings likely to improve cost certainty and reduce The biggest financial benefits can come from risk – both in terms of time and cost – and the shorter construction programme that if the same module can be repeated across a Turn over page to complete module should be achievable with offsite construction, giving reductions in financing costs as well Skid design as delivering greater control over the cost of Concept Install (customer (customer activity) (time on site) equipment. For example, the flow diagram manufacture activity) ● Output ● Offload 5 ● Controls philosophy of Figure indicates a process that takes just ● Integration ● Connect ● Modules five weeks – from initiation to delivery and ● Footprint ● Commission ● Pipework layout commissioning – of a tailor-made offsite
modular boiler skid, incorporating headers, Figure 5: An illustration of a five-week process to deliver a controls, pumps and primary pipework. prefabricated boiler assembly to site (Source: Remeha)
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CIBSE Nov16 pp81-84 CPD v2.indd 83 21/10/2016 15:47 Module 10 2 November 2016
1. What percentage of the UK construction sector is thought to Name (please print) ...... be accounted for by offsite construction? Job title ...... A At least 1-2%
B At least 2-3% Organisation ......
C At least 3-4% Address ...... D At least 4-5% ...... E At least 5-6%
2. When using offsite production, what is the quoted likely ...... reduction in vehicle deliveries to a site? Postcode ...... A 15% Email ...... B 30%
C 45% Are you a member of: D 60%
E 75% CIBSE If so, please state your membership number 3. In the photograph of the packaged boiler and domestic hot water module, what is specifically noted as enabling ‘near-100% (if available) ...... boiler efficiency’? Other institution A Integrated control system
B Variable speed pumps (please state) ...... C Optimised primary pipework
D Low pressure drop control valves
E Flue gas heat recovery To help us develop future CPD modules, please indicate your primary job activity: 4. Which of these is most significant for the greatest success of Building services engineer offsite production in a project? Mechanical engineer A Using BIM Electrical engineer Commissioning engineer B Early decisions relating to design and procurement options Energy manager
C Flexible use of tower cranes Facilities manager D Requirement to reduce vehicular movements to site Other (please give details) ...... E The ability to install equipment progressively throughout If you do NOT want to receive information about Remeha, the sponsor the programme of this CPD module, please tick here:
5. Which of these is unlikely to be a benefit of applying By entering your details above, you agree that CIBSE may contact you from time to time with information about CPD and other training or professional development offsite production? programmes, and about membership of CIBSE, if you are not currently a member. A Shorter construction programme B Opportunity to link modular development and delivery Please go to www.cibsejournal.com/cpd to complete this into the BIM questionnaire online. You will receive notification by email of successful completion, which can then be used to validate your C Lower local environmental impact during construction CPD records in accordance with your institution’s guidance. D Improved site health and safety Alternatively, you can fill in this page and post it to: E Lower structural loadings, and reduced costs, on all N Hurley, CIBSE, 222 Balham High Road, London, SW12 9BS floor slabs
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CIBSE Nov16 pp81-84 CPD v2.indd 84 21/10/2016 15:47 In association with
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p85_CIBSEMagNov16.indd 85 17/10/2016 12:40 PRODUCTS & SERVICES Telephone: 0207 880 7633 Email: [email protected]
New product manager for Rehau underfloor heating Drew Clough has joined Rehau as product manager for its underfloor heating and plumbing systems. He will drive innovation across the systems and help Rehau to develop its product range in response to market changes and opportunities. Clough will apply his 15 years of experience in marketing and product management, across a range of industries, to Rehau’s products and systems – bringing a valuable new perspective to the business. He is responsible for strategy, product development and FDS Group partners with Construction life-cycle management. United to improve image of construction G Call 01989 762 600, email [email protected] As part of its efforts to tackle key industry or visit www.rehau.co.uk issues, the FDS Group is now an official partner of Construction United, a leading initiative aimed at improving public perceptions of the Roof plant screening – with industry sector. amazing economy Consisting of smoke ventilation contractors Architectural Profiles, of Reading, has produced Fire Design Solutions and experts in fire a perforated louvre system for roof-top engineering FDS Consult, the FDS Group plant installations that reduces material and will work with Construction United on the construction costs by approximately 50% initiative’s three main objectives – improving compared to traditional systems. the overall image of the sector, tackling the By effectively allowing 55% airflow, the AP70 skills gap and raising awareness of mental louvre system reduces wind load significantly, health in the workplace. which reflects beneficially on the weight of the It will collaborate with a number of perimeter support structure. Construction United’s partners – including More than 3,000m of perforated louvre building products distributor SIG, Morgan was supplied to the Gateway Project at Sindall, and the Construction Industry Council the University of Salford – the first of eight – to look at some of the most pressing issues successive educational establishments to install facing the industry today, and to raise money the APL system. for its charity partners. G Email [email protected] Gerard Sheridan, the chair of FDS Group, Concord brings in the style said: ‘We are very proud to be a part of Newcastle-based IT company Orchard Construction United.’ Information Systems required a vibrant and G Visit www.firedesignsolutions.com contemporary office design that encourages innovation, so it turned to architectural lighting specialists Concord. By integrating exciting and efficient lighting into the space, the new office area in the city’s Central Square reflects the modern nature of the company. ‘The flexibility of the Concord products installed helped the project to feel contemporary while still providing a practical space for working,’ said David Warner, of Sine Consulting. G Visit www.concord-lighting.com
Passive cooling Kingspan Pipe Insulation first to receive thermal energy storage (TES) new Green Guide rating TES is the temporary storage of thermal Kingspan Kooltherm FM pipe insulation has become the first energy for later use, bridging the gap between system to be evaluated under the BRE’s new Green Guide ratings energy availability and energy use. Overnight table and methodology for pipe insulation. cool energy is stored in the form of 20~27ºC The products received the highest possible summary ratings phase change material-filled containers and of between A and A+. later used to absorb the internal and solar heat The new approach has been specifically designed to provide a gains during the day, for an energy-free passive more accurate assessment of the environmental impact of pipe cooling system. The environmentally friendly, insulation in situ. short payback, maintenance-free cooling Kingspan Industrial Insulation commissioned BRE Global to solution can be applied to new and existing carry out the environmental profiling and certification. buildings. G Call +44 (0) 1544 388 601, email [email protected] G Call 01733 245 511 or visit www.kingspanindustrialinsulation.com or visit www.pcmproducts.net
86 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp86-90 Products.indd 86 21/10/2016 14:50 PRODUCTS & SERVICES Telephone: 0207 880 7633 Email: [email protected]
Elco HIUs at the heart of new luxury development Crick sticks its neck out to pioneer Residents of luxury apartments at The Franklin, in biomedical research Bournville, Birmingham, are benefiting from heating and The new Francis Crick Institute has a instantaneous domestic hot water, thanks to Nexus Futura commanding position near St Pancras, in IS heat interface units (HIUs), from Elco Heating Solutions. central London. It is a consortium of six of the Around 80 highly efficient HIUs have been installed at UK’s most successful scientific and academic the development as part of a network heating system, organisations, which invested a total of £700m to connected to three Elco R603 floor-standing boilers in a establish the institute. centralised plantroom. Named after Sir Francis – famed for his The units are capable of providing direct central heating contribution to the identification of the output up to 35kW and are easily accessible for servicing. structure of DNA – the interdisciplinary medical G Visit www.elco.co.uk research institute is now open. Research will be conducted on why disease develops and ways of preventing and treating Just add water: HygroMatik at illnesses such as cancer, heart disease and Interbad 2016 neurodegenerative diseases. Held annually in Stuttgart, Germany, Interbad Integral to this precision development is is the international trade show for the spa, pool a wide range of pumps, all of which carry and sauna industries – and HygroMatik exhibited the Grundfos logo. These solutions will there for the second time. help to support the heating, cooling, water Its stand showcased a steam-bath installation supply, pressure boosting and pressurisation featuring the CompactLine C17 Comfort DS requirements of the building. and HeaterSlim BS 10 steam-generator systems. G Call 01525 850 000, email grundfosuk@ Also on display was a key appliance from the grundfos.com or visit www.grundfos.co.uk HeaterLine series, the new TF 106 temperature sensor, with a temperature limiter that offers maximum safety during a steam bath. G Call 02380 443 127, Bigger and better JMv axial fan range email [email protected] or from Fläkt Woods visit www.hygromatik.com Fläkt Woods, manufacturer of ventilation and air movement technology, has announced the expansion of its JMv axial fan range, which includes a choice of sizes and has been heralded as even more efficient than the original. An improved design means the axial fans are capable of saving 27% of running costs, which is 3% higher than the initial models that were launched last year. The extended offering includes five additional sizes, expanding the axial fan range up to 1,000mm in diameter. G Visit www.flaktwoods.co.uk Epsilon – the latest innovative LED luminaire from Luceco Luceco has launched the Epsilon, a direct/ indirect recessed luminaire designed to optimise lighting performance and maximise luminaire spacing. It has an architecturally pleasing appearance, is designed in the spirit of the Society of Light and Lighting’s LG 7 requirements, and has an efficacy of 120 luminaire lumens per watt. Epsilon offers up to Ultimate control for LST radiators 50,000 hours working life with no maintenance Thermal Energy Storage (TES) Myson offers a comprehensive range of TRVs or re-lamping, so benefits the environment in TES is the temporary storage of thermal to complement its range of LST radiators and terms of energy efficiency and lamp disposal. energy for later use. It can reduce the chiller allow temperature control of each room. G Call Zoe Newland-Hodges on 07890 320 size by 50% by simply spreading the load over Its ‘integral’ thermostats are designed to 152 or email [email protected] a 24-hour period. maximise the effectiveness of its LST radiators. It also reduces running costs by using The range offers two designs: the Close overnight lower ambient (possible free Coupled kit – which allows the case to be cooling) and lower electricity costs, while removed for cleaning without removing the offering smaller plant space and full standby TRV head – and the competitively priced Direct capability using +8~167ºC phase change Fit kit. Both come with Myson’s A-rated TRV material (PCM) containers for a conventional and are designed for precision control. HVAC&R applications. G Call 0845 402 434 G Call 01733 245 511 or visit www.myson.co.uk or visit www.pcmproducts.net
www.cibsejournal.com November 2016 CIBSE Journal 87
CIBSE Nov16 pp86-90 Products.indd 87 21/10/2016 14:50 PRODUCTS & SERVICES Telephone: 0207 880 7633 Email: [email protected]
Underfloor air conditioning upsurge JLR embraces solar thermal in Latvia Oventrop has collaborated with Arup, Interserve and AET Flexible Space – in conjunction with its NG Bailey to design, supply and install seven solar distribution partner in Latvia, Hitex – has thermal domestic hot water preheating systems for received orders to supply its underfl oor the new Jaguar Land Rover (JLR) i54 facility, a £500m air conditioning systems to several major engine manufacturing centre in Wolverhampton. refurbishment projects in Riga. The factory will be home to the ‘Ingenium’ The re developments include the Triangula engine family – which will power a new generation Bastions Business Centre and the Mukusalas of JLR products designed, engineered and Business Centre. manufactured in the UK , starting with the two-litre AET Flexible Space has previously achieved diesel engine in the Jaguar XE – and will employ more success in Latvia at the Nordea Bank than 1,400 people. headquarters in Riga, which was awarded Most G Call 01256 330 441, email info@oventrop. Energy Effi cient Building and Most Sustainable co.uk or visit www.oventrop.co.uk Building in Latvia in 2011. G Call 01342 310 400, email lucy@fl exiblespace.com Heat pump at heart of or visit www.fl exiblespace.com dementia care home The new Callywhite Home, in Derbyshire, is built over three fl oors, accommodates 39 residents, and has been designed for the elderly and those living with dementia. It features an integrated heating and hot water system – including a gas absorption heat pump, condensing boilers and water heaters – from heating and hot water equipment manufacturer Lochinvar. Solar photovoltaic panels were initially considered, but Lochinvar’s Optimus gas absorption heat pump (GAHP) was thought to be a more appropriate choice. To meet dementia care guidelines, it was decided that the space heating should be via an underfl oor system delivering constant and gentle, low-temperature heat, while avoiding the use of radiators on safety grounds. Optimus GAHP has a gas utilisation effi ciency (GUE) of 152% at a fl ow temperature of 50°C when ambient air is 7°C , so is ideal for this type of application. G Visit www.lochinvar.ltd.uk
Prepare to be blown away by Panasonic’s new Mini VRF system Panasonic has unveiled its new, large-capacity Mini VRF horizontal discharge system, which is now available. The powerful system off ers a compact installation footprint, great performance and complete fl exibility for system design. It is available in eight or 10HP and is optimised to provide energy effi cient performance. The system uses the horizontal discharge and is enabled to operate at 100% capacity at 40°C ambient in cooling mode. It has a maximum rated static pressure of 35Pa, and the Mini VRF fan performance is of such a standard that it can operate in applications with high fan resistance. G Visit www.aircon.panasonic.eu Powerstar to launch Virtue EV Later this year, Powerstar will offi cially launch Polypipe Ventilation launches BIM library Virtue EV, the most recent innovation in its Polypipe Ventilation, manufacturer of energy-saving Domus Virtue energy storage range. ducting and Silavent mechanical ventilation appliances, has The Virtue EV rapid/fast-charging systems set up a building information modelling (BIM) library, which is use battery storage to limit the amount of available free of charge. energy required from the network at any BIM ‘Object’ data on Polypipe Ventilation products includes given time. detailed information on product properties, geometry, The system not only provides feasible rapid- visualisation data and functional data that enables the ‘object’ charging services, but also off ers smart-grid
to be positioned and behave in the same way as the product integration, UPS functionality, CO2 reduction would in-situ. and renewable connectivity. Using BIM data reduces the risk of discrepancies at an early Visit the website to register your interest stage, ensuring cost-eff ective, safe construction. and to receive product information and launch G Call 03443 715 523 event details. or visit www.polypipe.com/ventilation G Visit www.powerstar.com/virtue-ev
88 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp86-90 Products.indd 88 21/10/2016 14:51 PRODUCTS & SERVICES Telephone: 0207 880 7633 Email: [email protected]
Ruskin unveils BIM database Energy-saving Ventilation, air distribution and fi re and smoke control options for manufacturer Ruskin Air Management has launched commercial an extensive – and freely available – library of building buildings information modelling (BIM) objects to support the A new brochure work of designers, installers and operators of building from Mitsubishi engineering systems. Electric highlights The library will be regularly updated with new all of the central product information, but already holds a huge plant solutions amount of free-to-download data on fi re and that the company smoke control dampers that engineers can directly can off er to help incorporate into their BIM models. reduce energy Ruskin’s 3D objects include key data defi ning consumption in the each product’s physical characteristics, materials and properties. As a result, the objects can be built environment. incorporated directly into BIM models and form part of virtual 3D designs to help construction ‘Our occupied spaces have to be made and installation teams identify any potential ‘clashes’, so they can iron out problems before work more energy effi cient, less carbon intensive begins. This speeds up the delivery process, cuts costs, and ensures a better quality fi nal product. and incorporate renewable energy where Ruskin Air Management is also encouraging library users to send their comments and provide possible,’ says Graham Temple, marketing feedback on the BIM library. manager for Mitsubishi Electric. G Visit www.ruskinuk.co.uk/technical/bim-models and follow @RuskinUK on Twitter ‘The good news is that many of the solutions are aff ordable, scalable and available now . We have created Brushed nickel trends this brochure to highlight examples in UK market place where the installation of well-designed, Innovative and traditional brassware designs energy-effi cient central plant has really company Francis Pegler has launched a range made a diff erence.’ of brushed-nickel taps . The range includes The brochure looks at the e-series the most popular designs in the portfolio, modular chiller range and the including the Adorn, Strata, Rune and Chef. comprehensive NX chiller line -up. Varying in shape and style, these taps off er It details the Ecodan range of air, ground elegant fashion through to contemporary chic and water source heat pumps, and explains designs. The complete kitchen range includes how the company’s advanced range of 60 styles, all of which come with a minimum Lossnay mechanical ventilation with fi ve-year guarantee. heat recovery (MVHR) systems and air G Call 0800 156 0010, handling units (AHUs) can reduce energy email [email protected] consumption for almost any building. or visit www.pegleryorkshire.co.uk Comfort zone for hot converters The brochure can be downloaded from Over the past few years, Rittal’s LCP rack bit.ly/2dxE2TR industry system has proved eff ective in cooling G Call 01707 282880 power electronics in switchgear. or email [email protected] Rittal has now developed a new generation of these air/water heat exchangers, with numerous improvements aimed at enhancing Rinnai makes major investment in their performance for control and switchgear London and South East manufacturers, as well as users of the Rinnai – UK manufacturing supplier of machinery and equipment. high-effi ciency, continuous-fl ow hot water A new, improved LCP rack industry system heating and delivery units – has formed a now features recesses to allow the routing of dedicated sales team covering London and busbar systems and cables. the South East. This follows the opening of a G Visit www.rittal.co.uk or follow @rittal_ London offi ce. ltd on Twitter ‘The new premises have been set up in response to high demand for Rinnai product and expertise,’ says MD Tony Gittings. Martindale Electric expands The new sales team will work in tandem range of lock-outs with the Rinnai UK sales centre and technical Martindale Electric continues to off er safe support, at the company’s headquarters in isolation with the addition of new professional Runcorn, Cheshire . electrical locking-off devices and kits for G Visit www.rinnaiuk.com miniature circuit breakers and fuse holders. The lockouts provide reliable solutions to ensure circuits have been de-energised and isolated properly before maintenance and modifi cations of plant and equipment. The new LOKKIT6 includes universal fuse carrier lock-off , a TAG4 warning tag and marker pen, plus a PAD10R padlock – and is designed to restrict fi nger access to live contacts. G Call 01923 447 717 or visit www.martindale-electric.co.uk
www.cibsejournal.com November 2016 CIBSE Journal 89
CIBSE Nov16 pp86-90 Products.indd 89 21/10/2016 14:55 PRODUCTS & SERVICES Telephone: 0207 880 7633 Email: [email protected]
Back to school for Wieland Wieland Electric’s popular Metalynx2 structured wiring system has been installed for the distribution of all power and lighting in the newly refurbished Halley House Primary School, in Arcola Street, London E8. The Metalynx2 system was specified by electrical contractors Etech Southern, which designed and installed the electrical Vent-Axia’s Sentinel Kinetic Advance infrastructure for the project in accordance MVHR shortlisted for industry awards with the Education Funding Agency output Sussex-based Vent-Axia is celebrating after specification. Etech Southern were able to reaching the final shortlist in the Electrical maximise onsite productivity, as the product is Viessmann introduces new Industry Awards 2016, which recognise, pre-wired and pre-tested at Wieland’s factory. Vitodens 200-W cascade celebrate and reward companies that are G Call 01483 531 213 Viessmann has released a new, flexible Vitodens leading the way in the UK electrical sector. or visit www.wieland.co.uk 200-W boiler cascade system for commercial The ventilation manufacturer’s Sentinel applications, with outputs ranging from 12kW Kinetic Advance is a finalist in the Innovative to 594kW. This requires 30% less space than Residential/Domestic Product of the Year. The the previous cascade system and reduces next generation of whole-house mechanical installation times by up to 50%. ventilation with heat recovery (MVHR), the The compact dimensions of the new Advance offers near-silent, energy-efficient Vitodens 200-W cascade make it ideal for and high-pressure operation, ideal for care plantrooms that have a small floor area or homes and student accommodation, as well as limited headroom, or that are difficult to new-build residential properties. access. The height required for its installation is G Call 0844 856 0590 reduced from 2.2m to 1.8m. or visit www.vent-axia.com G Visit www.viessmann.co.uk
DIRECTORY Your guide to building services suppliers Telephone: 020 7880 7633 Email: [email protected]
Air Conditioning Air Conditioning Air Handling PAYING TOO MUCH FOR DAIKIN PARTS?
Manufacturer of high quality bespoke AHU’s. Specialists in refurbishment and site assembly projects. Space Air have been supplying genuine Daikin parts since 1980. Rapid delivery service available. Call now for the best prices and availability! Aircraft Air Handling Ltd Unit 20, Moorfi eld Ind Est, 0333 0069 7544 Cotes Heath, Stafford, ST21 6QY Tel: 01782 791545 Fax: 01782 791283 www.spaceair.co.uk Email: [email protected] Web: www.aircraftairhandling.com
Energy Effi ciency Ventilation and Air Conditioning
Grilles & Diffusers Heat Recovery Units Menerga Ground Source Heat Pump Chillers & Heat Pumps Installations VRF & DX Splits Radiant Heating Fan Coil Units Fans Air Curtains Meeting Renewables Targets Fire & Smoke Dampers Air Handling Units
Trust systemair. Email: [email protected] Tel: 02392 450889 One Partner - a million possibilities Web: www.systemair.co.uk Fax: 02392 471319 Tel: 0121 322 0200 www.groenholland.co.uk Certificate Number MCS 1201 Heat Pumps
90 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp86-90 Products.indd 90 21/10/2016 14:56
54 CIBSE Journal November 2016 www.cibsejournal.com
Directory November 2016.indd 54 27/09/2016 10:14 ● Telephone: 020 7880 6212 Email: [email protected] APPOINTMENTS Senior Project Manager Mechanical Consultant (Mechanical) £32k-£39k FTE We have an exciting new opportunity for an experienced, skilled Mechanical EMS Engineering Maintenance Services Ltd is a contracting company Consultant to join our Facilities Management Division at Place Partnership. based in EC1 and has been established for over 30 years who are Our Head Offi ce is based in Worcester with the opportunity for a proportion committed to providing the best service. of fl exible working that would suit someone living in either Herefordshire, Warwickshire or Worcestershire regions. Are you able to quickly develop a rapport with customers and work As an integral part of our team of Mechanical & Electrical Consultants, you colleagues, be methodical, possess excellent organisation skills, be will be responsible for providing professional expertise, technical advice self-motivated and; and support relating to the condition, capacity, suitability and statutory compliance of mechanical installations, plant and equipment managed by • Have a minimum of 5 years’ experience within the mechanical Place Partnership. Based in Worcester but covering the North region including building services industry at a similar level; Bromsgrove, Shropshire, Telford, Kidderminster, you will be responsible for • Be able to manage a team of Project Managers and multiple solving complex problems with manufacturers, contractors, suppliers and projects and at any one time; customers, and ensuring that installations and maintenance regimes are safe. • Support and report to the senior management team to realise You will be degree qualifi ed (or equivalent) in mechanical building services engineering and will have a proven track record in mechanical systems, the company objectives; feasibility, design, and providing technical expertise on maintenance strategy • Make key departmental decisions quickly and effectively to and improvements. You will be a member of CIBSE or the Institute of maintain the smooth operation of the business; Mechanical Engineers. • Manage resources and oversee fi nances to ensure that the We are a progressive company that is looking to expand and grow. This is a projects covered by the department are delivered on time, really exciting time to join Place Partnership and a fantastic opportunity for on budget and remain profi table? new talent to help shape and develop our business. If you are enthusiastic and passionate about mechanical engineering, and feel Salary range 65K-70K plus package. you can add value to our team and are keen to develop your career with Following completion of a probationary period, you will be invited Place Partnership, please send your CV with a covering letter to Careers@ to join the company health and pension schemes. Placepartnership.co.uk To apply please email your CV to [email protected] Informal enquiries to Derek Sandilands, M&E Portfolio Manager on 01905 673190 (no agencies). EMS Engineering Maintenance Services Ltd is an equal opportunities employer. Closing date: 11 November 2016
www.cibsejournal.com November 2016 CIBSE Journal 91
p91-92_CIBSEMagNov16.indd 91 18/10/2016 16:51 APPOINTMENTS ● Telephone: 020 7880 6212 Email: [email protected]
Intermediate Electrical Design many awards for being a fantastic Engineer | Canary Wharf employer in the industry. Working NWR N%HQH´WV under the Director you will have full autonomy of your department and be Due to an increase in project wins, responsible for project management, an intermediate electrical design resource planning, recruitment and engineer is required to join our client, QA. This is a fantastic opportunity a small building services consultancy Trusted recruitment to reset your work life balance while based at Canary Wharf. Working on a working in a great role. advisors bringing large number of commercial projects candidates and you will be tasked with designing %,0&KDPSLRQ_/RQGRQ&LW\ the full range of electrical building NEHQH´WVSDFNDJH VHUYLFHV$VZHOODVRI´FHEDVHG organisations design work you will also be expected A well renowned building services to attend client/ design meetings and contractor are looking for a together to build undertake feasibility and site surveys. BIM Manager to lead their BIM department. Responsible for taking outstanding careers Associate Electrical Engineer the business’s BIM capabilities on Kent/South London to the next level, this is a fantastic NEHQH´WVSDFNDJH opportunity to be amongst the business’s Senior Directors and advise A well renowned multi-disciplined on strategy and market trends/ consultancy are currently searching technology. This contractor are for an Associate Electrical Engineer ZRUNLQJRQVRPHRIWKHPRVWSUROL´F to lead their electrical team located building projects in London and have in North Kent. This is a great D´UVWFODVVUHSXWDWLRQLQWKHPDUNHW company to work for an have won
Find all jobs at conradconsulting.co.uk [email protected] London 0203 1595 387
PRINCIPAL ELECTRICAL ENGINEER – LONDON – £60K - £65K + BENS Are you looking for Our client is a leading international consultancy practice. The London offi ces, known for being the Consultancy’s MEP Centre of Excellence, requires a experienced staff? technically astute engineer to join their team. Experience working on large projects both on a local and international scale is a must across the high-rise, commercial, leisure and stadia sectors. Just send us the job SENIOR MECHANICAL DESIGN ENGINEER – LONDON – £50K - £55K + BENS Established over 25 years ago, our client is an award winning medium sized description and practice specialising in residential, commercial and mixed-use development sectors on projects between £3m-£150m. This role provides a fantastic we will do the rest hands-on opportunity enabling you to be involved in the running and delivery of projects and mentoring of junior engineers. SENIOR MECHANICAL ENGINEER – LONDON – £50K - £55K Our client is an award winning environmentally focused building services consultancy, established for over 25 years, with offi ces in the UK and internationally. They have been highly commended for their sustainable approach and work on some of the most high profi le and pioneering projects With over 20,000 CIBSE members receiving the worldwide. Their portfolio includes commercial, leisure, high-end residential, magazine, 15,000 receiving the e-newsletter and cultural, master planning and science. over 7,500 unique visitors to the jobsite, many SENIOR ELECTRICAL ENGINEER – SURREY – £45K - £50K companies are successfully fi lling vacancies with highly Our client, established for over 40 years, with offi ces in the UK and internationally, work on some of the most innovative and prominent projects qualifi ed candidates using CIBSE Journal Jobs. being undertaken in the building services industry. Their portfolio of projects is rich and diverse and includes data centres, commercial, fi nancial and Our experienced recruitment team will help trading, high-end residential, science and healthcare. you all the way giving you the best chance to fi nd your perfect candidate. Contact Nic or Jamie on 0207 855 9644 or email [email protected] or [email protected] Contact the recruitment team now on [email protected] or call him on 020 7880 6212 Get the app!
92 CIBSE Journal November 2016 www.cibsejournal.com
p91-92_CIBSEMagNov16.indd 92 18/10/2016 16:51 CHANGE AGENT POPPY SZKILER
SILENCE OF THE FANS
A new fi lm Pursuit of Silence examines the negative impact noise has on our environment. Quiet Mark’s Poppy Szkiler says HVAC fi rms are already joining the silent movement
The Noise Abatement Society What can designers do to ‘Soundscaping’ the environment raises awareness, educates and mitigate against noise? can help, but with so many different campaigns for measured, considered The overall soundscape of a sound types to mitigate, it is and responsible use of sound. It was The noise building is infl uenced not only notoriously diffi cult to dampen or 1959 founded in by businessman John from within by the technology and machines remove them all. Connell, who wrote a letter to The that are placed within it, but by the Telegraph to complain about ‘terrible a building is materials and surfaces of which it How do products gain the excessive noise’ – and 4,000 readers much more is constructed . Sound waves travel Quiet Mark standard? replied in agreement. In 2012, his diffi cult to outward from the source – be that a To carry the Quiet Mark award, granddaughter, and former actress, contain and mechanical noise or people speaking products need to be assessed for their Poppy Szkiler formed Quiet Mark, reduce – and on reaching an obstacle, such as low noise output or sound-absorbing and with her husband, Paul , created a a wall, fl oor or ceiling, the direction of properties, to determine that they are ‘low noise’ certifi cation for appliances the sound is changed. Hard, refl ective one of the best options available in and equipment . surfaces amplify noise levels, as the their industry. Usually, this means HVAC manufacturers that have listener hears not only the direct submitting samples to be tested in the attained the Quiet Mark standard sound, but also the refl ected energy . Quiet Mark laboratories, where their include Salamander Pumps By thinking ahead about the acoustic qualities are assessed in real- (HomeBoost pumps for low water materials used to construct and line world conditions to understand their pressure), Grohe (Rapid SL Flush a space in relation to the end use and output in use. The data is compared to quiet toilet system), Xpelair (extract dimensions, designers can create other, similar products, to identify the fans), Vent-Axia (extractor fans) and comfortable acoustic environments. quietest options on the market. S&P (extractor fans). Now Quiet Mark is supporting the Is it more problematic to Could there be more launch of a new fi lm , In Pursuit of eliminate noise from inside regulations to reduce noise? Silence, which explores the impact of or outside buildings? The noise legislation that exists in the noise on our lives. Limiting noise emanating from UK today may be applied in different Szkiler explains why building outside a building can be diffi cult ; contexts . However, strengthening services has an important role to play however, there are now very effective Building Regulations would always in reducing the environme ntal stress glazing and door solutions that can be welcomed. caused by unwanted sound. help restrict the easiest ‘entry points’ into a building for external noise . How does the film Why is silence important The noise from within a building promote silence? to our wellbeing? is much more diffi cult to contain As much a work of devotion as a World Health Organi zation research and reduce. The acoustic properties documentary, In Pursuit of Silence on noise effects and morbidity of the space are determined by is a meditative exploration of our believes it is crucial. It says : the use, number of occupants, the relationship with silence and the ‘Environmental noise acts as a stress, build materials, and products and impact of noise on our lives. at night by disturbing sleep and via technology contained within. In our race towards modernity, annoyance during the day… With It can become a very complex amid all the technological innovation chronically strong annoyance, a causal acoustic environment as all the sound and the rapid growth of our cities, chain may exist between the three sources interact, creating different silence is now quickly passing into steps: health-annoyance-disease.’ tones and frequencies throughout legend. The fi lm challenges audiences Its research showed that, in terms the space. Most sounds generated are to slow down and, on some level, of having a negative impact on our functional – a product of the operation make the world new again for them. health and wellbeing, noise pollution going on within the building – so can ● was second only to air pollution as a usually only be reduced by replacing POPPY SZKILER is managing director at Quiet Mark causal factor. products with quieter alternatives .
www.cibsejournal.com November 2016 CIBSE Journal 93
CIBSE Nov16 pp93 Q&A.indd 93 21/10/2016 15:48 LOOKING AHEAD Events & training
Understanding West Midlands: ISO 50001 ANZ: Services in harmony: highlights the strategic- psychrometric charts implementation and Acoustic engineering level clarity, collaboration NATIONAL 24 November, London benefits 8 November, Sydney and planning needed for EVENTS AND 2 November, Birmingham With guest speakers successful outcomes. Low and zero carbon Technical seminar on Kezia Lloyd and Alex CONFERENCES energy technologies ISO 50001. Campbell, of WSP Parsons West Midlands: CPD 24 November, Brinckerhoff. technical seminar: District CIBSE Building LondonIntroduction to FM Group: Power over heating via heat pumps Performance Conference ground and water source Ethernet (PoE) Merseyside and North 16 November, and Exhibition heat pump schemes 2 November, London Wales: Tour of St George's Birmingham 17-18 November, London 29 November, London The impact of PoE on Hall With Dr Andy The annual conference structured cabling, 10 November, Liverpool Pearson,from Start returns to the QEII Implementing group covering De Montfort Refrigeration. Conference Centre, with and water source heat University research. SLL and North West: a programme that again pump schemes Computer aided daylight Hong Kong: Joint promises to inform and 30 November, London CIBSE membership and planning using DIALux symposium: Building a inspire. Speakers include registration briefing session 10 November, Manchester smarter city Max Fordham and Patrick Lighting Design: principles 3 November, London Seminar on calculations 22 November, Hong Kong Bellew. Visit the website for and applications Applications for and measurements of programme and to book. 30 November, London the Associate and façade systems and Society of Façade www.cibse.org/ Member grades and skylights using DIALux Engineering: Curved glass conference Designing water efficient Registration with the software. – pursuit of the impossible hot and cold supplies Engineering Council at 22 November, London Debate: Generalist versus 1 December, London the Incorporated and Energy Performance specialist learning Chartered Engineer levels. Group AGM and technical LuxLive 2016 15 November, London IET wiring regulations: 17th meeting 23 November, London London South Bank edition (incl 2015 update) SoPHE 13th anniversary 10 November, London Annual lighting exhibition, University debate, 2 December, London dinner at which the Society exploring Issues around 3 November, London Merseyside and North of Light and Lighting’s general cross-disciplinary Variable flow Society of Public Health Wales: Annual dinner Young Lighter of the Year learning versus focusing water system design Engineers dinner at Royal 11 November, Liverpool will be announced. on the specialisation of 2 December, London Garden Hotel. disciplines. HCNE: UPS systems – the West Midlands: Annual Scotland Region 80th changes in uninterruptible dinner anniversary dinner power supplies due 25 November, ENERGY 4 November, Glasgow CPD TRAINING to semiconductor Birmingham ASSESSOR An evening to celebrate developments and the Chance to network with For more information, visit 80 years of the region. impact on mechanical region members. www.cibse.org/mcc or TRAINING installation design call 020 8772 3640 For more information visit North East: Technical 15 November, London Hong Kong: Energy audit www.cibse.org/events or evening: Henrik Clausen course for building energy Design of heating and call 020 8772 3616 8 November, Newcastle SoPHE: Anti-microbial efficiency 2016 chilled water pipe systems With Henrik Clausen, of copper and Pegler 29 November, Hong Kong 4 November, London Air conditioning inspector Fagerhult Lighting. Yorkshire products to assist Offering the principles, 8 November, Birmingham in preventing HCAIs skills and guidelines Introduction to the heat FM Group: Building 16 November, Manchester needed to carry out networks code of practice LCC building operations legislation and compliance effective energy audits. 8 November, London and DEC 8 November, London HCNW: BIM – vital 9-11 November, London Event hosted by Clyde preparation for HCNW and WiBSE: Work, High voltage (11kV) & Co, with speakers Rod successful results career, inclusivity – distribution and protection LCC design and EPC Hunt and Jo Harris. 16 November, London unconscious bias 11 November, London 16-17 November, www.cibse.org/fm Jason Whittall, of One, 5 December, London Birmingham Lighting and energy efficiency Heat networks 15 November, London 16-17 November, London Health, wellbeing and productivity
Mechanical services LCC design and EPC in non-domestic buildings explained 23-24 November, London 15-17 November, London 8 November, London ISO 5001 Building services explained 23-25 November, CIBSE, University College London Institute for Environmental Design and Engineering (UCL 16-18 November, Manchester Manchester IEDE), CIBSE Home Counties South East and the Natural Ventilation Group are jointly hosting a conference that will feature cutting-edge research, scientific evidence and case studies on Introduction to combined health, wellbeing and productivity in relation to buildings. heat and power CIBSE GROUPS, Practical ideas on how to create healthy, comfortable and productive indoor environments 18 November, London REGIONS AND will be presented. Case studies of best practice applications will stimulate stakeholders – such Practical approach to LV SOCIETIES as designers, consultants and environmental engineers – to contribute to the design and fault analysis For more information, visit management of healthier indoor environments, including supporting clients. 18 November, London www.cibse.org/events Among the topics to be covered are: health, comfort and wellbeing; the effects of indoor air quality on productivity; light and wellbeing in buildings; the relationship between Design of ductwork systems Joint HCNW, SLL and acoustics, health and wellbeing; and the business case for wellbeing. 22 November, London CIBSE Heritage Group: By Speakers include Sani Dimitroulopoulou, from Public Health England, John Mardaljevic, gaslight tour Electrical services 1 November, London Loughborough University, Alan Fogarty, Cundall, and Marcella Ucci, UCL IEDE. explained A guided tour, with The event will be held from 12.30pm to 5.40pm at UCL, Gower Street, London. 22-24 November, Rebecca Hatch, on the For more information, visit www.cibse.org Manchester history of gas lighting.
94 CIBSE Journal November 2016 www.cibsejournal.com
CIBSE Nov16 pp94 Events.indd 94 21/10/2016 15:48 CMR Controls manufactures low air pressure and air volume measurement sensors and control systems for standard air conditioning, clean rooms, sterile laboratories, containment facilities, and fume cupboard extract systems.
DPC CONTROLLER Fast and accurate controls to drive high speed dampers or invertors. Full PID stand alone controls with DPM PRESSURE SENSOR BMS interface. Panel Mount Pressure or Velocity Transducers with remote alarms, analogue and digital interfaces. Traceable calibration certificates CAV AND VAV DAMPERS supplied as standard. Accurate air flow measurement with the unique CMR Venturi built into the AIR MANAGEMENT SYSTEM airtight shut-off damper to control room pressure or constant volume. A complete turn-key system to control room pressure to +/-1Pa. Fume cupboard face velocity to 0.5m/s at high speed and provide constant air changes into the labo - clean Metal Damper room.
VAV CAV PPS EXTRACT DAMPER PPS EXTRACT SUPPLY EXTRACT DAMPER DAMPER DAMPER CONTROLLER Poly-propelene control and shut off valve incorporating the CMR Venturi Nozzle. This
NORMAL EXTRACT HEPA is essential when dealing with corrosive FUME FILTER extract air especially from fume cupboard CUPBOARD systems.
LABO - CLEAN ROOM PPS Damper PRECISION COMPONENTS FOR VENTILATION AND PROCESS CONTROL 22 Repton Court, Repton Close, Tel: +44 (0)1268 287222 CMR CONTROLS Basildon, Essex SS13 1LN. GB Fax: +44 (0)1268 287099 A Division of C. M. RICHTER (EUROPE) LTD Website: http://www.cmr.co.uk E-mail: [email protected]
96 CIBSE Journal November 2016 www.cibsejournal.com
p96_CIBSEMagNov16.indd 96 17/10/2016 12:42 Performance. Inspiration. Aspiration.
Speakers and Chairs Include: LAST CHANCE TO BOOK Peter Barker Lucinda Lay BIM Academy, Ryder University of Oxford “Now in its third year, the Conference is an opportunity to mingle Architecture with and hear from some of the biggest names in our industry and grapple with the big issues of the next few years.” Casey Cole Alex Maclaren Guru Systems Heriot-Watt University, John Field FCIBSE CEng, President, CIBSE dotBuiltEnvironment
Mat Colmer Dejan Mumovic Digital Catapult UCL Institute for Environmental Design and Engineering Les Copeland Peter Murray WSP UK New London Architecture
Munish Datta Robin Nicholson Marks and Spencer Cullinan Studio, and Convenor of The Edge
Paul Davidson Neil Pennell Sustainable Land Securities Energy, BRE
Hywel Davies Jonathan Purcell CIBSE Waterman Building Services
John Field Sarah Ratcliffe President, CIBSE Better Buildings Partnership
Andy Ford Marine Sanchez London South Bank Enhabit (formerly University Green Tomato Energy)
Richard Francis Dwight Wilson The Monomoy Imtech Engineering Services Company London & South To register or view the full programme and speaker list visit: Debbie Hobbs Nick Winser Legal & General Energy Systems www.cibse.org/conference Property Catapult
Lynne Jack Bill Wright 17-18 November Heriot Watt University ECA
Themes: Achieving Performance In Use 2016 Air Quality: Impact On Health & Wellbeing Collaboration For Better Performance QEII Centre KEYNOTE KEYNOTE Westminster, London Digital Engineering & Building Services Patrick Bellew Max Fordham Innovation In Buildings Principal Founder @CIBSE #CIBSEconf Outlook For Building Performance Atelier Ten Max Fordham 5HIXUE5HWURÀW
Supporters: Drinks reception sponsor: Media Partner:
ICOM Energy Association www.cibsejournal.com November 2016 CIBSE Journal 95
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