Gas Power Technology QUARTERLY 3rd QUARTER 2015 Testing combustion in-house at Siemens’ Berlin facility Having spent $100 million to build a new test centre just outside Berlin, Siemens engineers are now further optimising the combustion process of gas turbines and check how they can best handle various fuel types. “We don’t sell green bananas to the customer. We thoroughly test every innovation and the Berlin facility is tailor-made for combustion testing,” said Jerry Klopf, director at the Clean Energy Center near Berlin, part of Siemens’ Gas Turbines, Engineering.
he overwhelming majority, or 95%, of customers ask for dual-fuel flexibility and refineries at times even want triple fuel flexibility, he told Gas Power Tech Quarterly during a visit to the test centre. T“Off-design testing helps us to find out the limits of a new or up- graded engine, through variation of control parameters. Then, on-site testing is undertaken and we’re on our way to beat the record efficiency in Irsching with our new installation in Lausward,” he anticipated. ‘Trick in combustion’ helps Lausward reach new record efficiency Asked how Siemens is managing to beat its own record efficiency levels, Mr Klopf suggested this was achieved “thanks to a little trick in combustion: the ratio between oxygen and fuel has been optimised, longer operation times of their assets, reduce maintenance intervals by exposing finer drops of fuel to oxygen, we can now increase the and avoid costly downtime. efficiency.” “All threads of communication from our global testing are coming to- Apart from combustion system rig testing, the Berlin test centre gether in Berlin, so we are having lively discussions and video confer- also carries out material testing (e.g. ceramic head shield) and rig test- ences with research colleagues all over the word,” he said. Real-time ing for compressors and turbines. The worldwide customer base of the data visualisation of TTF testing data helps to gather insight from the German OEM can now test engines under real conditions to ensure company’s worldwide engineering locations. continued on page 2 Dense vapour research helps boost power
Steam Turbine output 8% Hot Thermal Oil Researchers at the University of Delft in the Generator Netherlands have developed new understandings of Steam engine operation through a multi-faceted approach Generator ORC Turbine that is now delivering benefits in more efficient design for gas power generation and small scale Cold Thermal power systems. Oil Generator e have achieved success in a number of areas but most notably in our understanding of gas dynamics and our development of integral sys- ORC “Wtem design,’ Piero Colonna, Professor of Propul- Evaporator sion and Power in the faculty of Aerospace Engineering at the university told Gas Power Tech Quarterly. Air Cooled Condenser The team has focused much of its research efforts to date on the study of ORC engines. These systems employ working fluids with a Vapour research has helped improve the operation of ORC engines high molecular mass that allow for the design of efficient systems for power generation from low-to-medium grade heat (100 to 500 °C). of sources such as biomass combustion, industrial waste heat, geother- ORC power systems are arguably the best option for the conversion mal heat or concentrated solar radiation. continued on page 2 2 TURBINE TECHNOLOGY GPT Journal 3rd Quarter 2015
Top story, continued from page 1 In February 2015, the test centre opened in AGENDA Ludwigsfelde – less than an hour’s drive from Siemens’ gas turbine manufacturing plant in the centre of Berlin, and Mr Klopf said when showing visitors around with an air of pride: “We built three test cells in parallel at a cost of FLEXIBLE OPERATIONS approximately €100 million, we are currently Turbine research improves operational flexibility 3 25 employees and there’s more than enough Compressed-air system delivers peak power within minutes 4 space for further expansion.” POWER-TO-GAS First US power-to-gas project uses Proton OnSite electrolyser 5 Protecting intellectual property Motivation and key driver for this substantial SOFTWARE SOLUTIONS investment was the need to keep sensitive Siemens launches SPPA-T3000 Cue to enhance plant control 7 knowledge in-house. “We decided to build our Intelligent software boosts cyber-security for power plants 8 own test facility to keep intellectual property Convion SOFC system delivers co-gen capabilities to operators within Siemens. We test combustion systems, 10 burners, flows – these are key components CHP & DISTRIBUTED POWER which determine efficiency, output and emis- Scuderi engine cuts costs with combined operational modes 11 sions of a gas turbine.” Dutch tomato farmers pilot GE CHP diagnostics 12 At the test centre compressors can beef up the pressure up to 50 bar. “We are faster in the REPAIR & MAINTENANCE development cycle through rapid engineering Pressure wave technology cleans HRSGs with a bang 15 and prototyping through concentrated research, manufacture and development capabilities. POWER STORAGE “Close distance to gas turbine plant Berlin Hydrogen gas conversion for energy storage hits 85% per MW 17 certainly help, as does our ‘1,000 eye principle’ with virtual collaboration with gas turbine experts worldwide,” he said, stressing that “just two hours after test, all the results are documented.” continued from page 1 “We have focused on the dense vapour “We are now starting to conduct research to regime, where the turbine is operating, close to couple our understanding of dense vapour Gas Power Technology critical point of the fluid and through this have regimes with material simulations in order to Journal developed a deeper understanding of the high better model turbine lifetimes and identify po- Publisher temperature, highly supersonic processes,” tential improvements in the design,” Colonna Stuart Fryer Colonna explained. said, adding that in some situations “power Editor “This deeper understanding has allowed us output for an entire system can be improved by Anja Karl to developed an approach we term Automated as much as 5% – 8%.” Tel: +44 (0)207 017 3417 Blade Shape Optimisation which allows us to [email protected] improve the design of turbines and collaborate Integral System Design Senior Reporter closely with manufacturers to improve output.” Another key aspect of the team’s work has Malcolm Ramsay Tel: +44 (0) 207 017 3413 been the creation of software under the Integral [email protected] Elongated nozzle design boosts System Design framework. This set of tools al- Asia Correspondent output by 8% lows designers to optimise the parameters Ramadas Rao To date, the team has been particularly success- when designing an ORC engine based on a vast Tel: +91 80 4219 0096 ful in this respect with significant improve- number of parameters. [email protected] ments in power output due to remodelling of “We have developed the Integral System Advertising key components in the turbine design. Design software with the aim being to create a Monika Wojcik Tel: +44 (0)207 017 3442 “One key outcome of our research has been framework to optimise overall operation by [email protected] the discovery that in many scenarios nozzles taking into account the interaction of the vari- Events need function better when they are consider- ous components,” Colonna added. Barbara Canals ably longer. This comes about due to the com- It is expected that this will help create a Tel: +44 (0)207 173 410 plex interplay of density variation and speed of new generation of engines that are commer- [email protected] sound variations along the length of the nozzle cially competitive at a wider range of scales. Subscriptions and has significant implications for efficiency,” “A recent study for Shell on the role ORC Nikolett Kecskemeti Tel: +44 (0)207 253 3402 Colonna said. and heat recovery has shown that ORC can be [email protected] Alongside work to refine specific compo- attractive in a number of scenarios. In general
Production nents the team’s research has also focused on it is most favourable in greenfield sites, even Vivian Chee holistic system approaches to identify issues more is there is water available for cooling and Tel: +44 (0) 208 995 5540 around operation stability and reliability of sys- the heat source is located very close. [email protected] tems overall. “As well as funding from research funding continued on page 3 3rd Quarter 2015 GPT Journal FLEXIBLE TURBINE OPERATIONS 3 Turbine research improves operational flexibility
Improvements in improving the turndown, operational flexibility, and fuel flexibility of combustion turbines may soon be possible thanks to new research at the Ben T. Zinn Combustion Lab at the Georgia Institute of Technology, the largest U.S. university research facility working on gas turbine problems.
ur research focuses on the multi-facted approach the team takes to un- positions of the velocity fields to determine the R&D of technology that derstanding combustor dynamics. effects of transverse acoustic forcing. minimizes emissions and By tying together the data from a variety of “As expected, there are differences between “Omaximizes combustor measurements the team is able to compare the single and triple-nozzle flow fields, but the health, to enable the next leap in firing temper- trade-offs in temperature, pressure, flow rate, differences were not large in the regions up- ature and hence efficiency.” Tim Lieuwen, a re- and acoustics to predict optimal solutions. stream of the jet merging zone. This result sug- searcher on the team at Georgia Tech told Gas gests that the hydrodynamic influence of one to Power Journal. Helical flow in multi-nozzle swirling jet on the other is minimal and, as combustors such, that jet-jet interactions in this configura- Raising firing temperature One recent experiment carried out by the team tion do not have a significant influence on the Key to the team’s research efforts has been an was the investigation of transversely forced, unsteady flow structures,” the team state. exploration of methods to raise firing tempera- swirl stabilized combustors to compare the un- ture within gas turbines as a means not only to steady flow structures in single and triple noz- Reducing costs for operators improve efficiency but also to reduce the envi- zle combustors and determine how well a The underlying aim of much of this research is ronmental effects of future turbine designs. single nozzle configuration emulates the char- of course the production of commercially vi- “Today’s cutting edge F-class gas able technologies that will ultimately turbines hover at just above 60% effi- help power plant operators to both re- ciency in combined cycle configura- duce costs and operate in a more envi- tion. The easiest way to raise this ronmentally sound regime. number is to increase firing tempera- To achieve this, the team work ture but one of the challenges to rais- closely with industry to determine suit- ing firing temperature is NOx able milestones and have invested heav- emissions,” Lieuwen said. ily in custom-built combustion rigs, “Our research focuses on R&D of designed to emulate real-world opera- technology that minimizes emissions tion of gas powered turbines. and maximizes combustor health, to “We work closely with gas turbine enable the next leap in firing tempera- manufacturers on this research. A suc- ture and hence efficiency.” cessful lab demonstration would hope- To achieve this aims the team have fully lead to a commercial development focused on experiments that measure campaign,” Lieuwen said. the interaction between fluid dynam- Alongside a range of high speed di- ics, acoustics, and combustion dy- agnostic equipment such as lasers, cam- namics in gas turbine combustors. eras and intensifiers the research facility This enables them to gather data has also invested heavily in flexibility, about the physical parameters which allowing the custom rigs to study nearly define combustion stability and emis- any practical combustor nozzle. This in sion profiles over incredibly small Research has improved operation for multi-nozzle combustors turn means that models can be created scales of space and time. not only for current best of class solutions but “To accomplish this, we routinely take high acteristics of a multi-nozzle one. also to test hypothetical configurations. speed measurements (up to 10 kHz) of planar, Experimental work consisted of a series of “There is enormous growth potential for 3-component velocity fields (stereo PIV), pla- velocity field measurements to compare flow natural gas fired power plants in the United nar OH concentration fields (OH PLIF), and and compare the degree of non-axisymmetry States due to our large shale gas reserves t line of sight chemiluminescence of OH* and for the flowfields of nozzles in a multi-nozzle hat are relatively recently discovered,” CH* radicals,” Lieuwen explained, outlining configuration. This included azimuthal decom- Lieuwen added.
continued from page 2 agencies we work very closely with industrial capitalise on the potential from small scale 10 -20 MW range. partners which include a number of compa- ORC engines. “At the small scale there is a lot of potential nies involved in the sector including Bosch, The exciting aspect of research in this area from involvement with the automotive industry Dana, Triogen and Turboden Mitsubishi,” at the moment is that there is interest both at which has the huge resources necessary to see Colonna explained. the small and large scale. The work we are this technology rolled out in scale. My under- These industry connections are helping to doing studying ORC systems in the small-scale standing is that we will see the first examples boost interest from other sectors as well with 10 -20 kW can also be relevant for some larger on the road in the next few years,” Colonna the automotive industry in particular, keen to systems that are now being proposed at the concluded. 4 FLEXIBLE TURBINE OPERATIONS GTP Journal 3rd Quarter 2015 Compressed-air system delivers peak power within minutes US-based PowerPHASE has developed TurboPHASE, a compressed-air system for boosting gas turbines that can deliver peak power output within a minute or so after pressing the ‘start’ button. An 80MW TurboPHASE on an 800MW 2x1 power plant can be installed system ready in three working days on a space of around 630 square metres.
he module is skid-mounted, relocatable expensive than a new Com- and has a small footprint. Capable to bined Cycle plant. start-up in 60 seconds it helps to cater For a simple-cycle 7EA lo- Tfor peak power demand. cated 1000 ft above sea level In a simple cycle application the Tur- on a 90F day, the utilisation of boPHASE system consists of an air compressor a PowerPHASE unit increases driven by either a reciprocating engine or a output from 71,167 kW to small gas turbine and a heat recovery system 82,276 kW with a heat rate of which is used to capture the prime mover ex- 10,635 Btu/kWh. haust heat and add it to the compressor dis- With one TurboPHASE charge enabling the system to match the gas module, output increases to turbine's compressor discharge temperature. 74,080 kW and plant heat rate TurboPHASE is assembled for display "The benefit: Even on a 95F day, the gas decreases by 69 Btu/kWh. In- turbine can generate its ISO-rated power at a Efficiency gains of up to 20% stalling four modules can restore power output better heat rate and at the same emissions rate compared with simple cycle to ISO conditions on a 90F day while reducing as usual," said Bob Kraft. Asked about efficiency improvements, Kraft ISO heat rate by 245 Btu/kWh. On a combined-cycle or cogeneration sys- said the incremental TurboPHASE megawatt Though there is no reference plant yet, tem, the TurboPHASE system can be configured increases are 15-20% more fuel efficient than TurboPHASE developers are talking to most with a steam turbine drive for the air compressor Simple Cycle efficiency and about the same as of the largest gas turbine owners in the US and which enables a zero incremental air emissions. Combine Cycle efficiency, but about 70% less have encountered some buying interest.
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Elster GmbH, www.elster-instromet.com, [email protected] 3rd Quarter 2015 GPT Journal POWER-TO-GAS 5 First US power-to-gas project uses Proton OnSite electrolyser Proton OnSite, leading developer of Proton Exchange Membrane (PEM) electrolysers, will deliver its technology to the first power to gas (P2G) project in the U.S. Southern California Gas Company (SoCalGas) will run the demonstration plant that will test the dynamics of two electrolysers, nominally rated for 7 kW as well as 60 kW of input power.
he produced hydrogen will then be in- The rise in renewable energy has created a Most plants take delivery of stored hydro- jected into a simulated natural gas need for large scale energy storage. "The M Se- gen. But impure delivered gas supplies can pipeline system at the National Fuel Cell ries addresses this by providing scalable cost cause windage losses and excessive heat build- TResearch Center. The idea is to convert effective conversion of excess, stranded or cur- up in the casings. Storing large amounts of hy- renewable electricity into hydrogen which can tailed power to hydrogen, thereby creating a drogen gas is also a significant safety risk. be injected and stored in the gas network for carbon-free solution for storing energy and Alternatively, tried and tested electrochem- utilisation later in the day, week, or month, providing grid balancing services," according ical technology allows plants to produce hy- which helps minimise the demand ramp. to Bow, senior VP. drogen gas on-site, using just electricity and Greater production capacity of the M Series water. This gas is purer, and because the gas is SoCalGas P2G project helps reduces the capital cost per kilogramme of pro- only produced when it's needed, it's a much to test feasibility ducing hydrogen by over 50%, he stressed. safer option. "The SoCalGas P2G project will provide im- Another safety issue is excessive moisture portant validation of the technical and eco- Reducing costs, improving safety developing in the turbine, Speranza pointed nomic feasibility of hydrogen energy storage at with on-site hydrogen gas out. Hydrogen dew points should be at around grid scale," David Bow, senior VP, sales and Better analysis of the process by which power -15°C to -20°C to ensure no condensation is marketing said when presenting the Proton's M plants receive hydrogen gas can save operators formed. Moisture increases the density of the Series electrolysers at the Hanover trade show money and improve safety. gas in the casing, which affects windage, this week. "Power plants need to do all they can to but more importantly, moisture can lead to To address the growing need for large scale cost-effectively and safely produce electricity. turbine failure. If moisture gets into the rotor energy storage, Proton has launched a new But many overlook the fact that their cooling retaining rings, they are prone to cracking commercial MW-scale electrolyser platform, hydrogen gas supply may be causing ineffi- and corrosion. the M Series. At the 2 MW level, the new M ciencies and making their plant more haz- The move to on-site hydrogen and an on- Series provides a 13x increase in hydrogen ardous," John Speranza, Proton's VP of site gas management system means the cooling production compared to other commercial hydrogen product sales told Gas Power Tech gas is purer and needs less frequent venting, PEM systems. Quarterly earlier. meaning pressure can be better managed.
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Pratt & Whitney® and PW4000™ are trademarks of United Technologies Corporation, used with permission. 3rd Quarter 2015 GPT Journal SOFTWARE SOLUTIONS 7 Siemens launches SPPA-T3000 Cue to enhance plant control Raising performance is the key target of Siemens’ newly released SPPA-T3000 Cue. “The success clearly starts in the control room,” said Dr. Dirk Lumma, head of Siemens’ production management, instrumentation and electrical. Siemens is currently implementing the new control system at existing power plants in Denmark, the Netherlands and the US. e will have the system face (HMI) through new tools and inte- fully implemented for grated applications, personnel in the con- all three customers in trol room of a power plant can interact “Wthe course of this years, with the system more efficiently and effec- but it's not yet clear how's who's winning the tively. "Alarms often come in by the sec- race to become our first reference customer," ond, so we've created a tool which Dr. Lumma told Gas to Power Journal at the quantifies and visualises the alarm level sidelines of PowerGen Europe. which allows the operator to focus on what Targeted for use at existing power plants, is really important," he said. the SPPA-T3000 Cue helps improve plant availability and reduce downtime by monitor- Averting 'trip stops' reduces ing operation and averting errors. "This has a downtime and saves money Source : Siemens substantial cost saving potential as the operator The SPPA-T3000 Cue gives the operator an alert the operator to take immediate action in would incur huge expenses in the event of un- overview of the plant status at all times, as it the event of a serious operational malfunction. foreseen downtimes or plant trips," he said. monitors key performance indicators and "When the control room personnel have only a Power-Gen Europe, held in Amsterdam warns in the event of trip stops, according to few seconds to react, the system provides in- from June 9-11, is the platform where Siemens Dr Lumma. In addition, integrated KPIs allow structions for immediate action," Dr Lumma is presenting SPPA-T3000 Cue to a broad in- the operator team in the control room a smooth said. dustry audience for the first time. The new shift management, to dispatch the plant in an To avoid such a worst-case-scenario alto- SPPA-T3000 Cue will be included in all of optimal way. "During shift hand-overs, the op- gether, the diagnostic function provides cues Siemens' new power generation control solu- erator is guided in a 4-step approach to ensure about unexpected changes in conditions long tions in the future. that no information is lost," he explained. before they become critical. It reports subtle By optimising the Human-Machine Inter- The 'Trip Stop' feature has been created to changes before DCS limits are reached. Curbing costs through laser repair of gas turbines Laser repair of gas turbine components is just a step away from becoming a wide-spread commercial reality. Repairs recently carried out at the National Research Council of Canada (NRC) were achieved by laser cladding components in test turbines, with data analysis showing this innovative repair approach reduces of maintenance cost, shortens repair cycles and extends component life.
he laser cladding/consolidation technol- Power Tech Quarterly. "Actually, some fuel "Further research is required to extend the ogy developed at NRC relies on a cobalt- nozzles we repaired are also been used for gas laser repair to much broader materials and com- based alloy known as L-605 (Haynes 25) turbines in power generation." ponents used in gas-fired power sector," Lijue Talloy. This material has good oxidation Early work by NRC has led to the develop- added. "Some materials used in gas turbines in and corrosion resistance as well as high ment of a 3D mapping system to repair dam- power plants are different from that used in avi- strength properties at elevated temperatures. aged fuel nozzle air caps using laser cladding ation. For example, IN-738 alloy may be widely A Lasag Nd:YAG laser coupled to a fiber- of L-605 material. High-temperature fatigue used for power plant application but may have optic processing head is focused on the L-605 testing of these replacement components limited usage in aero engines." powder which is delivered to the melt pool showed that L-605 specimens showed an aver- Traditionally, when a component needs to through a nozzle with a powder feed rate of 5– age fatigue life of 16,850 cycles, which was be repaired it will be removed and then a re- 10 g/min. Operating in pulse mode, with an av- comparable to baseline samples. placement part must be welded or brazed back erage power of 40–100W, the laser then uses a on before redoing thermal cycles, non-destruc- five-axis CNC motion system to fix alloy to the Shortening turbine component tive testing (NDT), and recertification of hard- relevant surfaces, creating complex net-shape replacement times ware. In most case this implies a complete functional components directly from CAD de- Gas turbine components are typically subjected replacement at extensive cost and a plant shut sign. This helps to reduce production cycle to extremely harsh operating environments as down and refit period of several weeks. time as well as reduce waste materials and they run at temperatures well tooling costs. above 1,000C with high vibra- Clad tion and pressure. The laser Technology initially developed for cladding process has to date aero gas turbines been developed with a focus on "This laser repair technology developed for re- aviation gas turbines but over- pairing aero gas turbine components can also arching similarities mean that Substrate be used for the gas-fired power sector," Xue the technology should be easily Lijue, lead researcher on the project told Gas applicable to power plants. SEM observation of as-clad L-605 8 SOFTWARE SOLUTIONS GTP Journal 3rd Quarter 2015 Intelligent software boosts cyber-security for power plant operators
New cyber-security technology, integrated with highly automised control software at gas power plants, is helping operators to tackle a plethora of cyber-attacks, according to security firm Darktrace. “Cyber-crime is undoubtedly increasing for power plant operators, both in the number of attacks and also in their sophistica- tion,” Dave Palmer, director of technology for Darktrace told Gas Power Tech Quarterly
he number of ways hackers can gain ac- are seeing attackers apparently playing a longer biological principles of the human immune cess to a power plant control system has game, by lying low within a network and system to the challenge of defending organisa- increased greatly in recent years as more slowly building up knowledge and understand- tions against dynamic cyber-threats,” Palmer Tand more machinery within a modern ing of how the systems operate without obvi- explained. gas power plants is connected to each other and ously damaging or stealing data, straight away. “It does this by learning what normal be- also to the wider internet. Termed Internet These reconnaissance missions are not always haviour is for an organization or network, auto- Connection Sharing (ICS) such devices are evident to the company either, because of the matically, and spotting deviations from this prone to a wide range of attacks as anybody inadequacy of traditional defences in detecting ‘norm’, where threatening activity may be oc- with a computer, anywhere in the world can in their movements, which are often subtle and curring. Powered by machine learning and theory gain access to the systems. inconspicuous,” Palmer said. mathematics developed at the University of “With increasing convergence between IT Cambridge, it is able to detect these suspicious and OT (operational technology) networks, Tackling the issue with the behaviours in real time, while there is still time ICS machines are now open to the same attack Industrial Immune System to act, irrespective of where the compromise vectors that the corporate environment has As wide as the range of methods of attack are started or who is behind the attack,” been dealing with for years,” Palmer explained. there is also a corresponding range of cyber-se- Traditionally, digital assets were protected “The reality today is that power plant opera- curity tools now available for operators to simply with passwords, firewalls and other tors face a whole range of different cyber- tackle the threat. In turn many of the weak- border defences, in the hope of keeping net- threats, from lone individuals or insiders, right nesses exposed by new power plant software works free from intrusions or illegitimate pres- through to large criminal groups or even so- can be turned into a strength by comparing data ence by stopping or filtering access. However, phisticated nation states. Attribution of attacks from different sites instantaneously. this model is increasingly becoming outmoded, is very difficult, and motivations are not al- Darktrace is one of the firms pioneering this as advanced threats multiply and persistently ways easy to understand new approach to cyber-security. overcome traditional perimeter defences. Whereas in the past power plant control Their Industrial Immune System aims to de- “Like the human immune system, this tech- systems were relatively isolated from the real fend against threats on a pro-active basis, mak- nology is constantly learning and adapting to world, both by nature of their relatively remote ing it orders of magnitude more difficult for its evolving environment, meaning that it stays geographical location and their stand-alone hackers to act. ahead of new threats or attackers. Regardless software stacks, nowadays plants are increas- “Darktrace’s [Industrial Immune System] of where the attacker might originate or how ingly connected to the web and also closer to technology is based on a new approach to long they have been around inside a SCADA populations as distributed power and CHP cyber security, which takes for granted that all system or ICS device, Darktrace can detect the technology grows. networks are already infiltrated and compro- subtle changes of behaviour that might indicate “As ICS devices are inherently less secure mised. Named the ‘Enterprise Immune Sys- a threat and alert the organisation in real time,” than their corporate counterparts, this is a worry- tem,’ it is the first technology to apply the Palmer added. ing development, put- ting human lives at risk, as well as seriously jeopardising the busi- ness financially and from a reputation per- spective,” Palmer said. Once hackers do gain access to a plant it can also be difficult to detect them and in many cases once a site is compromised it is not immediately dam- aged but rather may be held in hand by the hackers for a future at- tack. “More and more, we Darktrace's technology helps fight cyber-attacks As part of ASEAN POWER WEEK Conference & Exhibition 1 – 3 September 2015 IMPACT Exhibition & Convention Centre Bangkok, Thailand INVESTING IN A SUSTAINABLE TOMORROW www.powergenasia.com REGISTER TO ATTEND NOW ASIA’S PREMIER POWER INDUSTRY EVENT POWER-GEN Asia, as part of ASEAN Power Week alongside Renewable Energy World Asia and the POWER-GEN Asia Financial Forum, has become the leading force in delivering a platform for the power industry to meet, share information on the challenges facing the power industry and discuss solutions for advancing Asia’s energy future. 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Owned & Presented by: 2IÀFLDO6XSSRUWHUV Produced by: 10 SOFTWARE SOLUTIONS GTP Journal 3rd Quarter 2015 Convion SOFC system delivers co-gen capabilities to operators New fuel cell development from research institute Fraunhofer IKTS and system integrator Convion has helped to create breakthrough technology that offers the potential for high- efficiency co-generation in the small-scale and distributed power market. ased on a novel design Convion re- comes electrically and ionically cently launched its C50 system which active at high temperature reduc- combines high-efficiency electricity ing oxygen into oxygen ions at Bgeneration with CHP capability and the cathode. The solid oxide elec- more robust real-world operation saving opera- trolyte then acts as a diffuser for tors cost over the longer term. the charged to pass to the anode “Our product is based on 58kW (net AC) where they are electrochemically modules which can be multiplied for larger oxidized. Convion's SOFC system power demand. In principle there is no upper This structure not only means limit, but typical installations would be the fuel cells can be highly efficient but also in real-world operation. As a result they can few hundreds of kW,” Erkko Fontell, chief provide long-term stability and flexibility. De- run on everything from light hydrocarbon executive of Convion told Gas Power Tech signed by Fraunhofer IKTS with help from fuels, such as methane, propane and butane to Quarterly. Plansee the MK351 stack is based on just a few externally reformed heavier hydrocarbons, in- The result of a collaborative research and simple components making it not only robust cluding jet fuel (JP-8) or biofuels. development programme Convion’s C50 fuel but cheaper to manufacture than alternative “Convion fuel cell products provide cus- cell is based on Fraunhofer IKTS’ MK351 more complicated products. tomers excellent energy efficiency, CHP capa- stack and utilises a unique chromium-based This streamlined design also gives the fuel bility and increased power security. Convion alloy called CFY, developed by Austrian mate- cell stack a high power density per cell result- products are designed for continuous operation rial science firm Plansee. ing in overall performance degradation of a low maintenance need and easy integration in Based on Solid Oxide Fuel Cell (SOFC) stack integrated in a hot box of less than 0.7 % built environment,” Fontell said. technology the system relies on an electro- per 1000 hour. To create the C50 system multiple fuel cells chemical conversion to produces electricity di- “This value was confirmed by several ex- are joined to form the MK351 stack. Each indi- rectly from oxidization. periments including long-term test with over vidual cell uses CFY, a chromium-base alloy Cells are composed of electrolyte material 18,000 hours of operation”, emphasize Dr. Mi- that contains 5% iron by weight as well as made of ceramic and operate at very high tem- hails Kusnezoff, Head of Department Materials traces of yttrium. perature, typically between 500 and 1,000 °C, and Components at Fraunhofer IKTS. This unique compound is ideal for SOFC doing away with the need for expensive plat- As one of the most flexible forms of fuel operation as its coefficient of thermal expan- inum catalyst material. cell technology SOFCs can run on a variety of sion is adapted to match that of the high-per- The ceramic material inside the cell be- gas fuels making them ultimately more flexible formance electrolyte. Based around the characteristics of fully-stabilized zirconium oxide, such as 10ScSZ or 8YSZ the new com- Small, containerised gas turbine pound was the result of materials research by Plansee which manufactures powder metallur- cooling unit launched gical materials as well as tools and formed parts. ohnson Controls, the American build- 2020 model uses Johnson’s York-brand “Plansee CFY interconnects are based on a ings heating and cooling systems sup- chillers, water pumps, electrical starters as scalable, cost-effective powder-metallurgical plier, has launched a containerised well as its Metasys control system. net-shape production, which significantly re- Jversion of its Gas Turbine Inlet Air The company is marketing the product duces production costs through a high degree Cooling (GTIAC) system, model YCP-2020 for Asian gas-fired power markets, where in- of automation and high material yields”, Dr. rated at 8,000-kWthth, that may add 4% to stalled gas power plant capacity, considered Lorenz Sigl, Head of Innovation Services at gas power plant capacity for Asian genera- a cleaner source of baseload capacity than Plansee said. tors. A GTIAC system can boost capacity at existing coal power plants, is forecast to The new system is expected to see growth both new and existing gas-fired power plants, grow annually 7.5%. in existing fuel cell market to begin with but it increasing power output by 30%. The new containerised GTIAC unit will is hoped the high-efficiency and robustness of The cooling system usually comprises be manufactured, assembled and tested at operation will also start to attract operators of chillers, a cooling tower, circulating water one of Johnson Controls’ large chiller manu- distributed power and co-generation systems to pumps, control system, heat exchange coils, facturing facilities in Wuxi, China. explore the wider use of fuel cells. as well as thermal and ice storage. This new The manufacturer currently offers OEM “The main focus is in market deployment product shrinks GTIAC systems to the com- service across Asia at about a hundred of with selected partners and continuous cost re- pact size of an ISO container. The YCP- its branches. duction of the product,” Fontell commented. 3rd Quarter 2015 GPT Journal CHP & DISTRIBUTED POWER 11 Scuderi engine cuts costs with combined operational modes Technology from engine developer Scuderi Power has opened the door for independent power producers to balance load from combined heat and power (CHP) with regional grid requirements. “The dual-output system combines the functionality of both an independent power producer (IPP) and a combined heat and power (CHP) system,” Stephen Scuderi, founder of the firm explained to Gas Power Tech Quarterly.
he system first invented by will fluctuate greatly over the course of a day Cost savings for operators Scuderi’s father allows a generator meaning that output and efficiency for an IPP The major significance for most IPPs is the po- to deliver electricity to two sources at will also vary. tential for significant cost savings from this ap- Tthe same time taking advantage By complementing the demands of the two proach. Averaged over the longer term the of a patented dual output combustion increases in efficiency and output cabn equate engine. to savings of as much as 20% and in areas This Split-Cycle technology where there is low demand may have even functions as both an air compressor greater benefits as the lack of the need and an engine and allows the kinetic to ramp up output can increase re- energy stored in the form of com- sponse time for users. pressed air to be mixed directly “We believe this can impact an op- with the energy stored in the fuel cre- erator’s bottom line positively because it ating a more powerful and efficient can reduce the cost of electricity by up to 20%, way of producing electricity. and provide full backup generation when the The system utilise paired cylinders, grid goes down,” Scuderi added. each of which performs two strokes. A The functionality to provide compression cylinder performs intake backup generation is particularly use- and compression while the power cylin- ful for IPPs operating in areas where der performs combustion and exhaust. there is poor grid reliability as this The compression cylinder transfers com- can prevent operations and services pressed air to the power cylinder through from grinding to a halt and all those a crossover passage and fuel is then in- losses associated with power failures. jected and fired to produce the power Frequently, IPP’s may also be able to bene- stroke. fit from increased electricity rates when they are “As an IPP, the generator has one able to supply power at times of grid shortage. output connected to the grid, which To date the company has been focussing on enables the system to sell electric perfecting the technology for commercial energy to the wholesale electrical adaptation following the grant of its patent but market as well as retail power to is now in a position to see the first system in- the end user through the local utility,” stallations completed. Scuderi said. “Right now we have been focusing this new “As a CHP generator system, the other technology on contracts we have secured in the output connects directly to the end user’s northeast United States. (Mainly New York and electrical system in order to provide distributed system outputs the Scuderi Massachusetts.),” Bill Wrinn, marketing man- power and useful heat. All this provides more The Scuderi engine ager at Scuderi said, adding that the firm “will functionality and benefits to the end user that likely expand elsewhere as demand dictates.” a remote or conventional IPP or CHP doing system remains in a The company is backing its technology via this separately. Like the saying goes, the whole high efficeicny regime throughout the day. a commitment to supply and install products becomes greater than the sum of its parts.” “The two outputs of the system can be used and does not require the customer to pay for This creates a huge benefit over traditional to regulate and maintain the system total output the equipment, installation or maintenance. CHP units in that the Scuderi system does not near or maximum capacity and efficiency re- “[The customer] only pays for the actual need to follow the load of the end user but can gardless of the load fluctuations of the end electricity and heat used when operating, so cap- always run at full load. Typically end user load user,” Scuderi said. ital costs are eliminated,” Scuderi explained.
“We believe this can impact an operator’s bottom line positively because “ it can reduce the cost of electricity by up to 20%, and provide full backup generation when the grid goes down” - Stephen Scuderi, founder, Scuderi Power” 12 CHP & DISTRIBUTED POWER GTP Journal 3rd Quarter 2015 NEWS NUDGES Dutch tomato farmers pilot GE GAMA signs contract for PP13 CHP diagnostics in Saudi Arabia GE’s Distributed Power Business is piloting GE’s new Beta myPlant 2.0, As their first contract to help meet Saudi the remote monitoring and diagnostics software formally introduced Arabia's growing need for electricity, last week, in a Dutch commercial tomato greenhouse growers collec- tive. The collective renewed its multiyear service agreement with GE’s GAMA Power Systems has signed an EPC Distributed Power business. deal for the 1800 MW CCPP PP13 project. The proposed power plant will consists of 6 embers of the Prominent Grow- diagnoses the issue and deploys field service GE F-class gas turbines and GAMA's scope ers Association have 36 green- teams to make adjustments that get it running of work includes the mechanical, instru- house facilities and 1 smoothly. mentation and control (I&C) and electrical Mdistribution centre. GE will monitor the software continuously installation of the complete power genera- The facilities have an underground heat and expects its experts to be able to remotely tion equipment and balance of plant facili- storage aquifer which feeds surplus solar repair and adjust set points half of the time, ties. It also includes, partial supply of heated water created by the greenhouses to the preventing call-outs. equipment and materials, site fabrication Naaldwijk residential district. The software can also prevent unplanned where necessary, testing, preparation of "as- To meet their on-site power, heating, CO2 shutdowns by forecasting future component built" records and pre-commissioning and and lighting needs, Prominent’s members breakdowns, so that GE can rapidly repair the commissioning support. use CHP, including 50 Jenbacher gas engine compoenent before problems arise. CHP systems with a combined total output Another feature of the system, is that it can Bacteria to produce methane of 131 MW. also provide real time data on fuel efficiency as for use in power gen The pilot seeks to show the software can well as future predictions on efficiency based Methane gas emitted by bacteria to generate improve the performance of the Jenbacher en- on past data and engine messages, for reducing electricity may soon help the city of Mis- gines’ emission control systems, extend engine fuel consumption. soula move closer to its goal of becoming oil life while decreasing gas consumption. Margherita Adragna, general manager serv- carbon neutral. The council of the city in GE announced the technology during the ices for GE’s Distributed Power Europe, GE Montana, US, plans to install a new system Power-Gen Europe trade conference which Power & Water, said, “With digital communi- at its wastewater treatment plant to power took place in Amsterdam earlier this month. cations tools becoming increasingly important the facility by burning excess methane. The GE’s Gas Engines Center of Excellence in everyday life, GE is a leader in developing $1.1 million project is still in early stages of (CoE) in Jenbach, Austria developed the soft- and delivering Industrial Internet solutions to development, but could become operational ware with help from GE’s Hyderabad Technol- help operators harness the power of ‘Big Data’ by late next year. ogy Center in India, GE’s Software CoE in and real-time communication systems to im- California, and two external suppliers in the prove the performance of their equipment.” Egypt plans capacity additions United States. “GE’s myPlant system and our asset per- to power new capital city formance management solutions are allowing The Government of Egypt announced in the Specifications our customers to enhance the performance and spring it plans to build a new capital city in GE’s myPlant 2.0 software improves availabil- competitiveness of their assets by increasing the the desert east of Cairo. To supply electric- ity of Jenbacher gas engines in various indus- availability of equipment and reducing both ity to the new metropolis, a power-plant trial and municipal distributed power projects, operating costs and risks.For example, on a deal foresees Orascom Construction to including combined heat and power in green- 3.3-megawatt (MW) Jenbacher gas engine, a build three combined-cycle plants, each house applications. shutdown time of six to eight weeks can mean with a capacity of 4,800 MW. Siemens will When the software detects irregular data at an income shortfall of about $160,000 (depend- supply the turbines for these and other an engine site, a GE Quick Response Centre ing on the feed-in tariffs and downtime).” plants in Egypt under the largest single order in the company's history.
PEM project to convert wind power into hydrogen Siemens has started up an electrolysis plant based on Proton Exchange Membrane (PEM) technology, which converts wind power into hydrogen for re-use in gas pipelines or as a fuel for onsite gas power generators. The prototype installation in Mainz, Ger- many, can process up to 6 MWs of electric- ity, making it the biggest PEM installation of its kind worldwide. The plant is a collabora- tion between Siemens, Linde and Rhein- Main University of Applied Sciences. Source: GE Boosting Your Energy Options New gas engines with two-stage turbocharging
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Typ 02 - Boosting Your Energy Options (35+51G) - 210x297.indd 1 2015-05-21 12:54:08 14 COMBUSTION GTP Journal 3rd Quarter 2015 GE and Cascade sign gas turbine collaboration deal U.S. technology company GE has announced a multi-year joint development agreement with Palo Alto-based software and engineering firm Cascade Technologies to research and improve gas turbine operation.
he two firms will collaborate to study turbulent fluid, chemical and acoustic processes occurring within advanced, Tlow-emission gas-turbine combustion systems. “GE is leading the industry by deploying this technology in their engineering,” Frank Ham, president of Cascade commented. ““By provid- ing information that goes into design decisions, we can help improve efficiency, lower emissions and increase durability in future products.” Alongside a wealth of experience in high fi- delity Large Eddy Simulation (LES) and Com- putational Fluid Dynamics (CFD) analysis Cascade brings a range of propriety software tools. The firm spun out from academic re- search in fluid and thermal sciences, physical modelling, numerical analysis, high-perfor- mance computing and computer science and has developed models across industries. “The global energy industry looks to GE as a leader in high efficiency, with current HA gas The collaboration will improve turbine simulations turbines designed to deliver more than 61% combined cycle efficiency,” John Lammas, tion simulation of the operating regime and priety software developed by Cascade that can vice president, power generation engineering at better visualization of the combustion process. take advantage of high-performance computing GE Power and Water said. It is hoped this will allow engineers to under- such as national laboratory super-computers. “The enhanced simulation and visualization stand more about the subtle changes that occur. The Cascade software will improve the capabilities enabled by our collaboration with “The simulation is like a modern-day digital measurement precision to microsecond and Cascade can help us deliver even higher effi- microscope that allows GE engineers to inter- sub-millimeter resolutions and it is hoped that ciency and lower emissions in the next genera- rogate the combustion process in ways that this unprecedented amount of information tion of gas turbines. Together, we’re working were not previously possible,” Ham explains. will allow engineers to translate laboratory to deliver better products, faster.” “It’s like looking at the world through a slow- data into new commercial design up to ten motion video versus a time-lapse snapshot. times faster. High speed measurement and Seeing these details is helping GE gain critical “Working with GE’s advanced engineering analysis knowledge in how they can continue to im- design, Cascade can have the most impact The joint development agreement will study prove their gas turbines.” by both improving the software and helping multiple stages of the gas turbine combustion This higher fidelity analysis of the gas tur- GE improve the gas turbine technology itera- process at high speed allowing higher resolu- bine combustion process is facilitated by pro- tively,” Ham added.
owned by Kineticor Resource, a Canadian area, the state's power generation on Sunday NEWS NUDGES energy services company that converts totalled just 8,660 MW while demand was Entergy Texas pulls out of associated gas at oil field into onsite power. 13,088 MW, resulting in load shedding. Arkansas power plant purchase Scheduled for commissioning in October Suggesting the deal would be "unnecessary 2015, the grid-connect C1000 micro-turbine Turbine market could reach and too costly", Entergy Texas is abandoning will utilize the associated gas, also known $192bn by 2020 its plan to purchase part of the Arkansas as flare gas, produced in the Canadian Revenue of the global turbine market was Power Station. It has withdrawn an offer to province of Saskatchewan through a PPA valued at $135.68 billion in 2013 and is pay $237 million to buy one of the four 495 with Kineticor. expected to reach $191.87 billion by 2020, MW units at the gas-fired plant. Florida-based growing at a rate of 4.89% from 2013 Entegra Power Group is selling the plant. India: Water shortage curbs through 2020. A report by Transparency power output Market Research suggests rising demand Canada: Capstone micro-turbine Lack of rainfall not only affects hydro power for electricity worldwide is the main driver to utilise flare gas generation in India, it also reduces the behind the increased demand for turbines, Capstone Turbine will supply and install a amount of cooling water that is available for with fossil power due to cover the lion's share C1000 micro-turbine at a power generator thermal power plants. In the wider Mumbai of additional energy needs. 3rd Quarter 2015 GPT Journal REPAIR & MAINTENANCE 15 Pressure wave technology cleans HRSGs with a bang A new process for cleaning the fin tubes in HRSGs in combined-cycle power plants can remove rust and other deposits on components using a gas actuated pressure wave. “The Bang&Clean process uses high pressure to vibrate the fin tubes slightly to remove rust and other deposits in a process that takes far less time than traditional methods and at a much lower cost,” Robin Buller, UK Director at KRR ProStream told Gas Power Tech Quarterly. he technology has to date mainly been used for Conventional Steam Generators Capacity Markets were not designed to pay for all but is applicable to a range of power operating costs. They are rather meant to ease the need Tplant components to reduce corrosion and other internal build up. Such fouling in- “ of operators to cash in on high peak-load prices... cludes iron oxide (rust), sulphur, as well as am- monia salts – if there is a DeNOx system Dr. Keith MacLean, policy and research director, SSE installed. common for plants near the sea to suffer from The fin tubes in HRSG units are typically” Bang&Clean process reduces build-ups due to high humidity/salt levels." made of steel as it is cheaper and has higher plant corrosion The group incorporates teams in the UK, thermal conductivity than stainless steel, im- The process involves directing a flexible (or Netherlands and Switzerland and operates in- proving heat transfer from gas. However this rigid) lance that can be extended near the re- ternationally. To date restoration work has been makes them more susceptible to corrosion. quired plant component, normally the fin tubes completed at six major CCGT power stations Once complete the rust collects at the bottom of an HRSG. The lance is lowered into posi- in Europe and one in Macau. of the boiler and can be vacuumed up at the tion, and then the gas mixture is passed down end of the job. the lance into a bag from the control station Pressure wave displacement and actuated. A small explosion then generates delivers 0.3% efficiency boost Flexible operating conditions a pressure wave that travels down the chamber The process is effective in reducing pressure increase need for cleaning and in doing so shakes off any deposits that drop and lowering gas turbine outlet pressure There has been a noticeable spike in recent have become attached to the fins. A this ripple for HRSG. This typically lowers the HRSG years of corrosion caused in the operation of movement spreads along the tube, it shakes inlet pressure by around 13mbar and as a result many CCGT plants under flexible load. Of- deep into the bundles and throughout the rows can improve turbine efficiency around 0.3%, fline, the fins cool down, and when the HRSG of the HRSG unit. leading to increases in both gas and steam gen- is brought online the fin temperature lags con- erated electricity output. siderably behind gas temperature. As warm gas Deposits build up quicker The process as applied to catalyst blockage exhaust is passed over cool tubes, the water in under flexible operation can lead to significant reductions in differential the gas condenses onto the cooler tubes leading "Deposits can build up in any circumstances pressure. A power plant operator that used the to corrosion. but they are particularly prevalent when plants technology commented: "The differential pres- This situation is predicted to worsen in the are operating under flexible load conditions or sure had dramatically increased from 4.5 mbar coming years as government estimates forecast have been mothballed," Markus Bürgin, direc- to 17 mbar within a short period of time. After greater demand for flexibility from CCGT tor of Bang&Clean Technologies AG, Switzer- applying the Bang & Clean method it went plants to meet peak load and cover intermit- land and licensor of the process said. "It is also back to 5mbar." tency from renewables. DEC. 8—10, 2015 LAS VEGAS CONVENTION CENTER
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OWNED & PRODUCED BY: PRESENTED BY: SUPPORTED BY: 3rd Quarter 2015 GPT Journal POWER STORAGE & CCS 17 Alstom-Saft’s energy storage goes live at EDF’s Concept Grid To test its smart battery energy storage system (BESS) in real conditions, the Alstom-Saft consortium has installed and commissioned it at the EDF's Concept Grid Lab. The 1 MW per 30 minutes BESS will help with frequency regulation in mainland France to stabilise the grid. ESS consists of Alstom's MaxSine mittent renewable energy supply eStorage smart converter and Saft's throughout Europe. Excess pro- Intensium Max 20 lithium-ion battery. duction of wind and solar power It converts electricity between direct from Germany, for examples, is B BESS installed at EDF's Concept Grid Lab and alternating current that can be stored or being exported to neighbouring released into the grid. MaxSine eStorage soft- countries, with some TSOs struggling to inte- these actions within a few hundred millisec- ware allows electricity production to be opti- grate the random upswing of power supply. onds which is a real value for small grids," mised according to grid needs. The new BESS system provides power pro- Alstom said. Specific EDF algorithms have been imple- ducers and grid operators a new possibility for The project follows an earlier collaboration mented inside Alstom's software in order to de- releasing or storing energy into the grid when between Alstom and Saft, on the Nice Grid velop and test the frequency regulation with a there is an imbalance between energy produc- smart solar city demonstration project in Nice, storage system. Concept Grid, located on EDF's tion and consumption. "This is a more flexible France in late 2013, which saw the commis- research site at Les Renardières south of Paris, solution compared to frequency regulation via sioning of a 1 MW BESS for peak demand is a real distribution network that is designed to power plants allowing a best optimisation of management with the integration of intermit- support, test and anticipate the development of the power plants generation by valuing their tent solar energy. electrical systems towards smarter grids. unused reserve capacity. Saft is a designer and manufacturer of ad- "These experiments by EDF will evaluate vanced technology batteries for industry. As Power storage vital to balance the ability of the storage system to regulate fre- the world leader in space and defence batteries, intermittent supply quency. This system can also address integra- Saft's Li-ion technologies are also deployed in Grid imbalances are a growing threat to the sta- tion of renewables and maintain the grid the energy storage, transportation and telecom- bility of power supply due to the rise of inter- stability. The storage system does perform munication network markets.
Hydrogen gas conversion for energy storage hits 85% per MW New electrolysis stack technology from Canadian developer Hydrogenics offers a megawatt conversion capacity of 85%, paving the way for advanced gas power energy storage. “Creating a highly efficient link between the electrical grid and the natural gas system power to gas unlocks the massive energy storage capacity which we have already built and paid for,” Daryl Wilson, chief executive at Hydrogenics told Gas Power Tech Quarterly. ydrogenics has been working in the ing 4 of the 5 largest projects in Germany." Gas technology represents a break-through in- field of electrolysis for sixty five Hydrogenics is currently developing projects novation to solve the challenge of integrating re- years but the surge of renewable en- in the 5 MW to 15 MW range but expects full newable power generation," Wilson said. Hergy supply to the grid has raised the commercial scale projects to be in the 5 MW to level of intermittent supply, driving the need 100 MW range in the longer term. "Power to Reverse PEM fuel cell technology for storage solutions. The company has devel- The Falkenhagen plant uses the company's oped projects in Germany and Canada and esti- novel Proton Exchange Membrane (PEM) mates the global energy storage market already technology to power stacks of fuel cells. These exceeds $10 billion. cells work by using electrical energy to power an electrochemical reaction that produces hy- Hydrogenic's largest demo plant drogen and oxygen. In the reverse of the run by E.ON in Germany process normally used to generate power from California offers large potential for energy stor- gas in traditional PEM fuel cells the technol- age projects as the U.S. state has recently man- ogy delivers hydrogen by combining ions and dated operators to provide 1.3 GW of energy electrons at the cathode instead of the anode. storage by 2020 to strengthen the grid. How- When the Hydrogen Oxidation Reaction ever, Hydrogenic's largest installation to date (HOR) is run in reverse excess power from the has been a 1 MW demonstrator plant run by grid can be used to drive the fuel cell to pro- E.ON at Falkenhagen in Germany. duce water at the cathode side which undergoes "The approximate cost of larger scale proj- electrolysis to form hydrogen and oxide ions. ects will be around 1 Million euro per MW," These oxide ions are then transported through Wilson said. "We have already delivered more the electrolyte to the anode where they can be than a dozen projects for energy storage includ- Hydrogenic's Power-to-Gas PEM stack oxidized to form oxygen. Gas Power Technology QUARTERLY
Gas to Power Journal is a weekly publication and a daily GasPowerTech Quarterly gives a resume of key industry news service for the gas and power industry. It provides developments four times per year, covering innovations in analysis and insight on the downstream section of the turbine, engine and fuel cell design. Our special feature gas value chain, focussing on gas-fired power generation. editions allow deeper exploitation of particular regions The Journal covers technical innovations for gas-fired or topics to give advertisers a platform to promote their power plants and tracks commercial project development technical solutions. through the stages of planning, project finance, construction and gas supply to the plant. Trading and pricing trends on electricity and gas markets are highlighted. The publication also sheds light on the regulatory and policy developments that impact on security of gas supply and that may prompt a shift in demand patterns.
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Weekly News 27 March 2015 EUR 500 | GBP 365 | USD 625 Beijing shuts down 1,280 MW coal capacity to curb air pollution
China's efforts to move towards cleaner air are tak- ing shape: the government has shut down a large 20-year old coal power plant (400MW) in downtown Beijing, operated by state-owned Guohua Electric Power Company, just days after the shutdown of the 93-year old Shijingshan coal plant (4x220MW) in western part of the capital. New gas-fired capacity will replace the aging coal units.
our major coal-fired plants have been used for decades to provide much of Beijing's electricity needs. Now, under China's Clean Air Gas-to-Power Journal is a B2B publication covering the role of gas in the energy Initiative, the first coal plant was closed already last July, two further Fones were now shut down within ten days and the last is scheduled Staff of Guohua’s control room shut down for closure next year, according to China's state-run Xinhua news agency. the 400 MW coal power plant on March 20 The 400 MW Guohua Thermal Power Plant, idled on March 20, had mix, new power plant projects and turbine technology. been supplying heat and power to a key business district in east-central Instead, the government has opened a new plant, considered to be Beijing. The closure was part of the capital's 5-year campaign which China's largest gas generation that is capable to provide 8.3 billion kWh aims to curb coal consumption by 13 million tons from the 23 million of electricity as well as heating for more than 240,000 households. tons used in 2012. The Municipal Development and Reform Commission confirmed to Beijing plans to build four gas-fired thermal power plants to replace Xinhua that the Chentangzhuang Thermal Power Plant has ceased the its four coal-fired ones, in a bid to cut the capital's dependency on coal. operation of its three coal-fired power generation units. Neighbouring provinces have also idled several coal power plants. "The shutdown of Chentang plant is one of our most important proj- ects in 2015 to clean the air in Tianjin. This plant consumes 2.33 million Published every week and with news updates throughout the day Gas-to-Power Tianjin converts coal plant to run on gas tons of raw coal every year. The coal-consumption reduction task of The coastal municipality of Tianjin, for example, shut down its biggest Tianjin from 2012 to 2017 is 10 million tons, so it accounts for a quarter coal power plant on Wednesday last week – foregoing an average output of the whole coal reduction task," said Yang Yong, director of air man- Journal keeps industry players informed of current affairs, major development of 1.5 billion kWh of electricity. agement department in Tianjin Environmental Protection Bureau. MTU Aero Engines develops new AGENDA
COMPANIES and future trends. turbine blade material South Africa: ABB wins $160m automation order Material experts at MTU Aero Engines and their partners have jointly developed after Alstom exit 2 an intermetallic high-temperature materials for highly stressed engine compo- POLICY South Africa: ‘Don’t blame nents. Titanium aluminide (TiAl) – a new lightweight material for turbine blades – Eskom for lack of generation combines the advantages of metallic and ceramic materials. capacity’ 3 REGULATION he job was done in record time, MTU chief op- Nigeria: NERC issues licence for 1,080 MW gas power plant 3 erating officer Dr. Rainer Martens commented: PLANT CLOSURES Subscribers to Gas-to-Power Journal receive full access to all articles on our ""While previously, the introduction of a new E.ON withdraws 900 MW Tmaterial used to take 20 years or so, we've suc- plant from UK power market ceeded in coming up with an entirely new material Mighty River Power to close Southdown station at end class and maturing it for production within a mere of 2015 4 website as well as access to the weekly Gas-to-Power Journal in e-reader and seven years." MARKETS Turbine blades in TiAl are only about half the Moody’s has faith that weight of comparable nickel-alloy components but U.S. utilities can comply with EPA rules 5 boast the same reliability and durability. On top of PDF format. that, the high aluminum content makes the material re- PROJECTS UPDATE 6 – 7 sistant to oxidation and corrosion. TECHNOLOGY 11 continued on page 2 Inspection of MTU tubine equipment
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