660 mw supercritical boiler pdf

Water steam circuit in supercritical boiler for 660mw. Analysis and technical retrofit on low reheat steam temperature of a 660 mw ultrasupercritical boiler. In order to satisfy the needs of industrial power production and. The thermal efficiency of doublereheat cycle steam turbine will increase 1. Thermal design feathers of dongfang 660 mw doublereheat. Paper on super critical technology and analysis for indian environment. In 2007, the demonstration of the 600mw e sc cfb at the baima power plant in sichuan was approved by ndrc.

Complete basic and detail engineering for the entire epc of the project configuration. Standard technical features of btg system for supercritical 660800 mw thermal. Thermal design features of 660 mw doublereheat cycle ultrasupercritical steam turbine are detailedly discussed in this paper, the doublereheat technology is endowed with important significance for improving the thermal power generating technology and energy conservation, a model for. Major differences between supercritical and subcritical boilers. In this paper, les was applied to simulate a 660 mw ultra supercritical boiler under bmcr boiler maximum continue rate, 75%tha100, and 50%tha100 conditions. The leakage of a supercritical boiler tube has been investigated. In order to satisfy the needs of industrial power production and public utilities the company constructed advanced tower type. Total energy delivered at 660 mw for a period of one hour 660 mwh. Technoeconomic comparison subcritical vs supercritical vs ultra supercritical boilers description unit subcritical 16.

Recent developments in steam turbine technology and. The leakage was observed during a working pressure hydrostatic test under 40. The boiler was transitioned to commercial operation upon successful completion of the fullload test. Optimal control of gas temperature deviation in a 660 mw. Optimization analysis and energy saving strategy for. For steam turbinedriven cases, the exhaust is directed to the lp turbine condenser. In this paper, les was applied to simulate a 660 mw ultrasupercritical boiler under bmcr boiler maximum continue. Boiler package supplier doosan heavy industries, south korea.

Once through supercritical, two pass, balanced draft, out door furnace width 18816 mm, depth 18144 mm, volume 21462 m3 super heater. State key laboratory of multiphase flow in power engineering, xian jiaotong university, xian 710049, china. Aug 21, 2014 technological journey to supercritical boiler in india. Indian scenario of super critical power plants issues and. As expected, the supercritical boilers averaged a lower heat rate than the subcritical boilers. Rwpl was allotted 80 cusecs 8160 m3hr water from indira gandhi nahar pariyojana ignp canal located about 184 km from the power plant site. The erection and commission of the 600 mw e sc cfb was finalized by the end of 2012.

Complete technology transfer of supercritical boilers to joint venture. Boiler alstom coal lignite heat content 11 mjkg, consumption 460 th. Pdf system design and analysis of a supercritical thermal. China brings online the worlds first 600mw supercritical. Bhel commissions another 660 mw supercritical thermal. The turbine blades are also of improved design and materials. Supercritical boiler boiler where the operating pressure will be above 221 bars. Summary raj westpower 660 mw thermal power plant at bhadresh. Boiler parameters bil unit 500 mw description 800 mw 660 mw bmcr bmcr bmcr boiler parameters sh steam flow th 2585 2100 1625 sho pressure kgcm2a 256 256 179 oc oc 294 291 254 feed water temp shorho temp. Figure 62 schematic of a 600 mw supercritical steam power.

Supercritical boiler and its features with some economical. Coal requirement for a 2 x 660 mw supercritical power station is. On comparing the exergy efficiency between the components of the power plant shown in above figure, it can be noted that the boiler has minimum exergy efficiency, which means that the boiler has maximum exergy loss 42. Discussion on sub and supercritical boilers performance indicators and benchmarks of a power station constructional and design features of boilers boiler auxiliaries losses and performance optimisation. Liu wanyu 1, yang dong 1, wan li 1, liu dan 1, dang long 2, zhao guangxun 2, zhou haike 2. Pdf energy, exergy and optimization analysis of a 660 mw. Boilers of thermal power plants debanjan basak cesc ltd. Investigation of leakage on water wall tube in a 660 mw.

Construction of coalfired supercritical pressure power plant in. In september 2009 dongfang signed a contract with the indian east coast electric power corporation to build a coalfired power plant equipped with two 660 mw supercritical units. Stg of capacity 660 mw 247kgcm2a565593 configuration each consists of one combined hpip and two 2 lp cylinders, tandem compound quadruple exhaust, condensing reheat turbine designed for high operating efficiency and maximum reliability. Supercritical and ultrasupercritical coalfired power. In the meanwhile, the detailed thermodynamic analysis of a 660 mw ultrasupercritical unit in china was studied to provide some optimized design and operation suggestions. Construction of coalfired supercritical pressure power. State key laboratory of coal combustion, huazhong university of science and technology, wuhan 430074, china. Analysis and technical retrofit on low reheat steam.

Supercritical boiler that is usually applied to 400 mw systems or larger. Various methods for investigation namely radiography, microstructural analysis using optical and scanning electron microscopes, vickers. How supercritical power plant differ from conventional power. In fact, the very increase in higher pressure and temperature designs are dependendent on the development of newer and newer alloys and tube materials. Construction of coalfired supercritical pressure power plant. Supercritical steam power plants meet notably the requirements for high efficiencies to reduce both fuel costs and emissions as well as for a reliable supply of electric energy at low cost. Dang lijun 1, yang hui 1, ying wenzhong 2, wang zhenhao 2, fan shangdong 2, liu canhua 2, liu mingqi 2.

Therefore, the study on energy sensitivity of cylinder efficiency is of great value to the energy diagnosis of this type of turbine. Particularly, for this unit, an optimized connection scheme of the ash cooler, a core component in the cfb boiler to reclaim physical heat in the bottom ash, was selected. Guo anlong 1, fang qingyan 1, zhao sinan 1, wu ying 2, xia yongjun 2, zhang cheng 1, chen gang 1. Summary raj westpower 660 mw thermal power plant at. The energy conservation measures reduce the auxiliary power of 210 mw power plant from 11.

Huaneng fuzhou power plant, changle 350200, fujian province. Supercritical 660 mw industrial milling auxiliaries. Supercritical sliding pressure boiler water wall design comparison of vertical wall and spiral wall 20 no transcript 21 ash accumulation on walls 22 super critical boiler materials 23 advanced supercritical tube materials 300 bar6000c6200c 24 material comparison description 660 mw 500 mw structural steel alloy steel carbon steel. Supercritical power plants use special high grade materials for the boiler tubes. Points of discussion thermodynamic cycles discussion on sub and supercritical boilers performance indicators and benchmarks of a power station constructional and design features of. Based on this extensive research, the conceptual design of a 600mw e sc cfb boiler was completed by harbin boiler co. A motordriven bfp is used for the 400 and 600mw plant sizes. The internal geometry of the investigated leaking tube was multilead ribbed tube. Pdf the flexibility of coalfired power plants must be improved to satisfy load fluctuations in. Bharat heavy electricals limited bhel has commissioned yet another 660 mw coal based supercritical thermal power plant in uttar pradesh. State key laboratory of multiphase flow in power engineering, xian. Aug 23, 2014 the leakage of a supercritical boiler tube has been investigated.

The water consumption for 8 x 5 mw 1740 mw plant is 3570 m3hr 35 cusecs. In september 2009 dongfang signed a contract with the indian east coast electric power corporation to build a coalfired power plant. Best practices manual for indian supercritical plants partnership to advance clean energy deployment paced paced technical assistance program february 2014 this report is made possible by the support of the american people through the united states agency for international development usaid. Analysis and technical retrofit on low reheat steam temperature of a 660 mw ultra supercritical boiler. Large eddy simulation of a 660 mw utility boiler under. Amidst stiff international competitive bidding icb, bharat heavy electricals limited bhel has bagged a major order for setting up a 660 mw supercritical thermal power plant in west bengal. The objective of this paper is to perform an energetic and exergetic analysis on a 660 mwe coal fired supercritical thermal power plant at 100%, 80% and 60% of normal continuous rating ncr. Analyzing the temperature control of steam purging of 660mw ultra. In 2008 chinas dongfang electric corporation sold a 600 mw sc unit to turkey. Technological journey to supercritical boiler in india. Details of electricity production in a 660 mw supercritical thermal power plant and its economics. After a year of commercial operation, a boiler performance test was conducted in may 2014. An animated presentation over complete water steam circulation in a super critical boiler with flow chart. Optimal control of gas temperature deviation in a 660 mw supercritical tangentiallyfired boiler.

Supercritical units are more efficient, ecofriendly and consume lesser coal. Ppt boiler supercritical powerpoint presentation free. Ppt boiler supercritical powerpoint presentation free to. Pdf thermodynamic analysis on the transient cycling of coalfired. Thermodynamic analysis of a 660 mw ultrasupercritical cfb. Shanghai electricsiemens ultrasupercritical 660 mw unit. Various methods for investigation namely radiography, microstructural analysis using optical and scanning electron microscopes, vickers hardness testing and. Optimization analysis and energy saving strategy for startup. On 14 april 20, the unit passed a 168hr full load test. Multi stage with panel, platen, pendant section reheater.

Designed for both base load and full boiler variable pressure load cycling operation as well as onoff cycling operation. Notably, in the past 15 months, bhel has added 4,300 mw of power generation. Boiler feedwater is pressurized with a single hp boiler feedwater pump bfp, powered by an electric drive for the 400 and 600mw cases and a steam turbine drive for the 900mw case. The energy consumption sensitivity of steam turbine unit the production of thermal power plant involves boiler, steam turbine, condenser, heaters. Figure 26 a typical 600 mw benson type supercritical boiler unit. In 20, nrdc analyzed boiler heat rates and applied a modeling methodology that grouped the. Supercritical boiler starts operating in the once through mode beyond a. The required specifications of boilers and turbines are also standardized due. Bhel commissions another 660 mw supercritical thermal unit in uttar pradesh new delhi, october 10.

Skoda supercritical steam turbine 660 mw jiri fiala head of engineering dept. The boiler performance of variable loads should be evaluated in terms of flow, heat transfer, and combustion processes. Evaluation of heat rates of coal fired electric power boilers. A supercritical steam generator is a type of boiler that operates at supercritical pressure, frequently used in the production of electric power in contrast to a subcritical boiler in which bubbles can form, a supercritical steam generator operates at pressures above the critical pressure 22 megapascals 3,200 psi. In the meanwhile, the detailed thermodynamic analysis of a 660 mw ultra supercritical unit in china was studied to provide some optimized design and operation suggestions. Bhel commissions another 660 mw supercritical thermal unit in. Ppt super critical boiler powerpoint presentation free to.

Complete technology transfer of supercritical boilers to joint. Optimization analysis and energy saving strategy for startup process of a 660 mw supercritical boiler. Height of the boiler with supercritical technology is also higher at least by 10 m. Jan 20, 2020 the boiler performance of variable loads should be evaluated in terms of flow, heat transfer, and combustion processes. Ppt super critical boiler powerpoint presentation free.