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Management Iagre JOURNAL LANDWARDS AUG 2003 5/8/03 9:19 AM Page 4 LANDWARDS AUG 2003 5/8/03 9:19 AM Page 3 Agriculture • Horticulture • Forestry • Environment • Amenity LANDWARDSLate Summer 2003 Midgeater Calf Feeder www.iagre.org Volume 58 No.4 58 No.4 Volume Energy management IAgrE JOURNAL LANDWARDS AUG 2003 5/8/03 9:19 AM Page 4 IVEL CENTENARY HOSPICE APPEAL The world’s oldest, working, internal combustion tractor an Albone, the inventor of the Ivel Dagricultural motor, literally set in motion a revolution in mechanical farming, a decade ahead of Henry Ford and Harry Ferguson. Nominated in 1903, the Ivel was awarded the Silver Medal the following year, and went on to win a further 36 gold and silver awards around the world. The centenary celebration To mark this special occasion, a 100 mile drive was organised from its birthplace in Biggleswade to the Royal Show at Stoneleigh Park, Warwickshire in July. On arrival, the Ivel was displayed at the RASE’s Machinery Award Scheme presentations (see separate article in this issue). Help the Hospices John Moffitt’s special centenary Ivel tractor drive is in aid of an Appeal to raise £100,000 for the hospice movement in the UK. John Moffitt relaxing on the Ivel after the centenary drive to the Royal Show as part of an Appeal to Hospices strive to offer raise funds for the hospice movement dignity, freedom from pain, peace and calm at the end of approximately 200,000 www.hospiceinformation Help the Hospices, c/o John life. Help the Hospices is people. But this care also .info or call Hospice Moffitt CBE,Westside Farm, the national charity for the extends to and affects their Information on tel: 0870 903 Newton, Stocksfield, hospice movement, relatives, colleagues, and 3903. Northumberland, NE43 supporting over 220 friends.This means that the 7TW Tel:01661 843651 hospices in the UK. The hospice movement touches The opportunity Fax 01661 843940 E-mail vast majority of hospices are the lives of literally millions There is still time to help john.moffitt@westsidefarm. local independent charities of people, every year. To reach the target by the end co.uk and they provide their care find out more about hospice of 2003. Kindly make free of charge. Every year care and to locate local cheques payable to Help the UK hospices care for hospices, visit Hospices and send to: LANDWARDS AUG 2003 5/8/03 9:19 AM Page 1 Volume 58 No 4, 2003 The Professional Journal for Engineers, Scientists, and Technologists in Agriculture, Horticulture, Forestry, Environment LANDWARDS and Amenity Editor CONTENTS Eur Ing Prof Brian D Witney PhD CEng FIMechE HonFIAgrE MemASAE FFCS Feature Articles LAND TECHNOLOGY LTD 33 South Barnton Ave, 2 ENERGY MANAGEMENT Edinburgh, EH4 6AN Use of process integration technology in greenhouse Tel/Fax:0131 336 3129 E-mail: [email protected] energy systems Website: http://www.landtec.co.uk Andrew Marchant, Frank Ward and Gerry Hayman Advertising 8 AMENITY All enquiries to IAgrE Tel:01525 861096 New device launched to bite into midge problem Fax: 01525 861660 Melissa K Witney-Hunter Origination: David King 15 LIVESTOCK PRODUCTION Computer-controlled calf rearing Printing: Barr Printers Ltd Frank Seipelt,Arno Bunger, Reinhard Heeren, Dieter Kähler and Martin Lüllmann Publisher Landwards is published bimonthly by: IAgrE, Membership Matters centrefold West End Road, Silsoe, Bedford, MK45 4DU 14 Day in the life of...John Moverley Tel:01525 861096 Fax: 01525 861660 E-mail: [email protected] News and Comment Website: http://www.iagre.org 11 News scan President 20 Company and product information Dr Dan Mitchell 25 RASE machinery awards CEng FIAgrE FRAgS Front cover: Massey Ferguson 7480 (Courtesy:AGCO) Chief Executive & Secretary Christopher R Whetnall The views and opinions expressed in individual contributions are not those necessarily of IAgrE or the Editor. IEng MIAgrE MemASAE Landwards is compiled from information received by IAgrE but no responsibility can be accepted by the governing Council, the Publishers or the Editor in respect of any errors or omissions. The Editor reserves the right to edit any material sent to the journal. Material from this publication may be quoted or reported on condition that full credit is given to Landwards and to the author, and that the date of publication and volume number are stated. In the interest of factual reporting, reference to trade names and proprietary products may be inevitable. No endorsement of the named products or manufacturers is intended and no adverse criticism is implied of similar products which are not mentioned. © The Institution of Agricultural Engineers (IAgrE) ISSN 1363-8300 LANDWARDS AUG 2003 5/8/03 9:19 AM Page 2 ENERGY MANAGEMENT USE OF PROCESS INTEGRATION TECHNOLOGY IN GREENHOUSE ENERGY SYSTEMS Andrew Marchant, Frank Ward and Gerry Hayman Summary (gas, electricity, etc), but include practically achievable one. Description of Process This paper introduces the secondary items such as Suggestions for improvements Integration Technology concept of process integration fertiliser, water and packaging. to energy efficiency are listed Process Integration is a well techniques, as developed by System outputs are mainly in and ranked in order of energy known procedure which has others, for application to the form of product, packaging saving potential, but with no been used successfully for commercial greenhouse and waste materials. Energy linking to economic several years in many industries systems. Process integration streams are considered to be as considerations as yet. These where there are inputs which was originally developed by one of three types - are via the output screen, with are both qualitative and Linnhoff et al (1984) within the conventional Temperature options for graphical quantitative, with the original chemical process industry and Enthalpy (T-H) streams (eg, representations in terms of data example being distillation subsequently successfully heating), quantitative input summaries and reports. processes with heating and applied in many other sectors. streams (eg, water), and energy Data from environmental cooling. The technique involves consumption (process) - computer systems in Process Integration (Pinch) comparing energy streams in a enthalpy - product quantity commercial blocks for both Technology allows the qualitative and quantitative streams (eg, volumetric output). edibles and ornamentals have theoretical minimum energy manner to produce a In addition to these been used to undertake initial input to be determined and the theoretical minimum energy complications, there are several evaluation of this approach, and key heat exchanger to be input value, with options for external restraints, for example results with these test data sets identified for the process - the assessing various changes to limitations on recycling of water are given. ‘Pinch’, and identifies the critical plant functionality for maximum due to pest and disease issues. The need for benchmarking component in the process and energy savings. This has been Some elements, such as thermal and for objective assessment of the theoretical minimum energy extended over the years to buffer tanks, effectively take energy efficiency has recently use, allowing objective permit economic factors to be multiple roles depending on been highlighted within the UK assessment of energy efficiency built in to the whole. state. The software has been by the need for the industry to and subsequent improvements. The system developed is developed using Object demonstrate efficiency The technology has also been designed to be operated as Orientated Programming improvements in order to successfully applied to water either a stand alone item for an (OOP) techniques in C++ using maintain the Climate Change use, considering various audit purpose, or in the future Microsoft Foundation Class Levy (CCL) reduction. This qualities of water, cogeneration to be linked to the (MFC) for the Windows front currently presents obvious systems, mass transfer environmental computer such end and ChartFX for graphing. difficulties in comparing year on networks, multiple refrigeration that an on-going analysis can be Data exchange to year data without taking into plant and even quality assurance maintained showing actual environmental computers is at account meteorological and protocols. The initial performance against the present via Excel sheets, but it cropping variations. The application within multiple theoretical minimum. is proposed that XML be approach outlined permits such distillation columns is the The software described has adopted for this purpose. an objective assessment simplest for illustration been developed as a holistic The programme outputs although is to a certain extent purposes. one, considering all system are in the form of a theoretical dependent on more subjective The various heating and inputs and outputs. The former minimum energy input, the data in terms of yield response cooling processes may be inputs are primarily raw energy current energy input and the to different cropping regimes. considered in graphical form, 2 LANDWARDS LATE SUMMER 2003 LANDWARDS AUG 2003 5/8/03 9:19 AM Page 3 with the temperature at the allow the development of a variables which make them fit be considered both in the start and end of process, and coherent improvement strategy within the definition of batch cogeneration stream and also the energy used within it with quantifiable goals and processes as opposed to mass transfer (CO2) (Marchant plotted as a series of curves objective comparisons year on continuous fixed ones. Within et al, 2000). (composite curves), one for year and with other sites. the definitions offered by heating and one for cooling. Inputs can be considered as Linnhoff et al (1993), glasshouse Mass transfer The key heat exchanger can the primary energy ones, such production would be Mass Exchange Networks then be determined, and the as gas and electricity, and considered as an amalgam of (MENs) are relevant insofar as affect on total cooling and secondary in terms of several, having some of the the CO2 enrichment of the heating load predicted for any materials. For example water characteristics of both glasshouse environment is change in temperature has an energy value in terms of designated and multi purpose concerned.
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