Thermodynamic analysis of a modified system for a 1000 MW single reheat ultra-supercritical thermal power plant

Liu, Yinhe; Li, Qinlun; Duan, Xingwu; Zhang, Yun; Yang, Zhen; Che, Defu

doi:10.1016/j.energy.2017.12.060

Cited by 57 publications

(8 citation statements)

References 23 publications

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“…The power plant comprises highpressure turbines (HPT1, HPT2), intermediate-pressure turbines (IPT1, IPT2), and low-pressure turbines (LPT1-4). The Flue gas prepares to CO2 Capture to separate CO 2 and H 2 S with the DEA solvent 24) .…”

Section: Description Process Of Uscmentioning

confidence: 99%

“…Coal contributed 44% of total global CO 2 emissions and became the largest source of GHG (greenhouse gas) emissions 3) such as carbon dioxide (CO 2 ), methane (CH 4 ), nitrous oxide (N 2 O), ozone (O 3 ), and chlorofluorocarbons (CFCs) 27) . To reduce these pollutants, it is very important to increase energy efficiency in coal-fired power plants 4) .…”

Section: Introductionmentioning

confidence: 99%

“…The application of clean coal technology is useful for developing more efficient thermal systems, namely, to produce the same amount of energy, fewer coal inputs are needed, thus extending the availability of energy sources and producing emissions that are far lower than conventional technology. Various types of clean coal technology are still under development in order to provide a method that is environmentally satisfying in the use of coal, especially for electricity generation such as USC 4,[6][7][8][9][10][11] , IGCC [12][13][14] , and Integrated Coal Gasification of Fuel Cell Combined Cycle (IGFC) 15) . In China use of coal as gasification is considered a promising technology and can handle energy needs and climate change 23) .…”

Section: Introductionmentioning

confidence: 99%

“…investigate the technological and economic prospects of IGCC and Fischer-Tropsch (FT) liquid production with and without CCS, results indicate that substantial cost reductions and performance improvements are possible, especially for IGCC with CCS. Y. Liu et al 4) studied that thermodynamic analysis of a modified system for a 1000 MW single reheat ultra-supercritical thermal power plant, results show that the exit temperature of flue gas from the boiler can be reduced to a lower value without cold end corrosion and clog. The power generation efficiency of the power plant of 48.35% is achieved, which is 1.27% points higher than that of the reference unit at the same capacity.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Exergy Analysis of Coal-Fired Power Plants in Ultra Supercritical Technology versus Integrated Gasification Combined Cycle

Wahid¹,

Mustafida

Husnil

2020

Evergreen

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This study evaluates and compared the performance of coal-fired power plants in ultrasupercritical (USC) versus integrated gasification combined cycle (IGCC). System execution in terms of net control created, exergy examination was performed to coordinate the vitality loss dispersion of this system. Base on the exergy adjust condition. The IGCC system is modeled and simulated with post-combustion capture and both used sub-bituminous coal from the Indramayu PLTU. The result display that with the same amount of raw materials (20 ton/h coal) the IGCC generated great net power than USC. IGCC produced net power of 42 MW and USC of 22 MW. The highest exergy loss in the gasifier, H2S Removal and Carbon Capture for IGCC and in Boiler, Steam Turbine system, and condenser for USC. The total exergy efficiency for IGCC was 41.51% and 33.71% in USC.

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Section: Description Process Of Uscmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Exergy Analysis of Coal-Fired Power Plants in Ultra Supercritical Technology versus Integrated Gasification Combined Cycle

Wahid¹,

Mustafida

Husnil

2020

Evergreen

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“…Çalışmaya ekonomik analizler de dâhil edilerek daha anlamlı sonuçlar elde edilebilir. Liu vd [17]. yaptığı çalışmada 9 ara ısıtmasına ve 1 degazöre sahip USC termik santralde, ekonomizerdeki baca gazının kullanılması ve taze havanın ısıtılmasıyla termik santral veriminin %48,35'e ulaşabileceği görülmüştür.…”

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Farklı yük şartlarında kömür yakıtlı termik güç santrallerinin termodinamik analizi

Çetin

Özen

2020

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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 Energy and exergy efficiencies of the thermal power plant  The effects of steam parameters on the performance  The maximum exergy loss occurs in the thermal power plantIn this study, the thermodynamic analysis of the sub-critical and super-critical coal-fired power plants under various load conditions have been investigated. Figure A. Schematic diagram of the optimized coal-fired power plant Purpose: The aim of this study is to show the effect of live steam parameters on thermal and exergy efficiencies of thermal power plants under various load condition.Theory and Methods: Soma Power Plant was taken as a Base Case for this study. Steam parameters were increased from sub-critical level to super-critical level to investigate the effects of the steam parameters on the thermal and exergy efficiencies. Second reheat section, four regenerative heaters, two desuperheaters and regenerative turbine were added to optimize the power plant. Furthermore, the effects of the load condition on the plant's energy and exergy efficiencies are investigated by operating power plants under 50%, 75% and 100% load conditions. Results:It has been found that live steam parameters have a huge impact at the efficiencies under various load conditions. Conclusion:It is concluded that live steam parameters and load conditions are the most critical parameters to determine the power plants efficiencies. On the other hand, this study only includes performance analysis of the power plant. Thermoeconomic analysis of this study has to be investigated to achieve meaningful results.

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Thermodynamic analysis of temperature boosting of hot primary air in an ultra‐supercritical lignite‐fired power plant: Scheme comparison and performance enhancement

Pan,

Li,

et al. 2024

Asia-Pacific J Chem Eng

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Lignite‐fired boilers usually encounter the insufficient drying capacity of the pulverizer due to the inherent drawback of high moisture content in fuel. In this study, four schemes of heat sources for temperature boosting of hot primary air are proposed for an ultra‐supercritical large‐scale single reheat lignite‐fired power plant according to heat sources such as inlet flue gas of air preheater (Scheme 1), the third stage extraction steam (Scheme 2), outlet steam of low‐temperature reheater (Scheme 3), and inlet flue gas of economizer (Scheme 4). The thermodynamic system models are built by using EBSILON Professional software. The thermodynamic performance of the four schemes is analyzed and compared from the perspectives of the first and second laws of thermodynamics. First law analysis indicates that the power generation standard coal consumption of Scheme 3 is reduced by 0.87, 0.42, and 0.04 g·kW−1·h−1 compared with Schemes 1, 2, and 4, respectively. Second law analysis indicates that the exergy loss of Schemes 2–4 is 3.7, 7.6, and 7.5 MW lower than that of Scheme 1. The present study may provide guidance for the energy efficiency improvement of lignite‐fired power plants.

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Thermodynamic analysis of a modified system for a 1000 MW single reheat ultra-supercritical thermal power plant

Cited by 57 publications

References 23 publications

Exergy Analysis of Coal-Fired Power Plants in Ultra Supercritical Technology versus Integrated Gasification Combined Cycle

Exergy Analysis of Coal-Fired Power Plants in Ultra Supercritical Technology versus Integrated Gasification Combined Cycle

Farklı yük şartlarında kömür yakıtlı termik güç santrallerinin termodinamik analizi

Thermodynamic analysis of temperature boosting of hot primary air in an ultra‐supercritical lignite‐fired power plant: Scheme comparison and performance enhancement

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Thermodynamic analysis of a modified system for a 1000 MW single reheat ultra-supercritical thermal power plant

Cited by 57 publications

References 23 publications

Exergy Analysis of Coal-Fired Power Plants in Ultra Supercritical Technology versus Integrated Gasification Combined Cycle

Exergy Analysis of Coal-Fired Power Plants in Ultra Supercritical Technology versus Integrated Gasification Combined Cycle

Farklı yük şartlarında kömür yakıtlı termik güç santrallerinin termodinamik analizi

Thermodynamic analysis of temperature boosting of hot primary air in an ultra‐supercritical lignite‐fired power plant: Scheme comparison and performance enhancement

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Thermodynamic analysis of a modified system for a 1000 MW single reheat ultra-supercritical thermal power plant