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Technical and economic analysis of integrating low-medium temperature solar energy into power plant
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- Wang, F. (författare)
- Tianjin University, Ministry of Education of China, Tianjin, China
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- Li, Hailong (författare)
- Mälardalens högskola,Framtidens energi
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- Zhao, J. (författare)
- Tianjin University, Ministry of Education of China, Tianjin, China
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- (creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
- Ingår i: Energy Conversion and Management. - : Elsevier BV. - 0196-8904 .- 1879-2227. ; 112, s. 459-469
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- In order to mitigate CO2 emission and improve the efficiency of the utilization of solar thermal energy (STE), solar thermal energy is proposed to be integrated into a power plant. In this paper, seven configurations were studied regarding the integration of STE. A 300 MWe subcritical coal-fired plant was selected as the reference, chemical absorption using monoethanolamine solvent was employed for CO2 capture, and parabolic trough collectors and evacuated tube collectors were used for STE collection. Both technical analysis and economic evaluation were conducted. Results show that integrating solar energy with post-combustion CO2 capture can effectively increase power generation and reduce the electrical efficiency penalty caused by CO2 capture. Among the different configurations, Config-2 and Config-6, which use medium temperature STE to replace high pressure feedwater without and with CO2 capture, show the highest net incremental solar efficiency. When building new plants, integrating solar energy can effectively reduce the levelized cost of electricity (LCOE). The lowest LCOE, 99.28 USD/MWh, results from Config-6, with a parabolic trough collector price of 185 USD/m2. When retrofitting existing power plants, Config-6 also shows the highest net present value (NPV), while Config-2 has the shortest payback time at a carbon tax of 50 USD/ton CO2. In addition, both LCOE and NPV/payback time are clearly affected by the relative solar load fraction, the price of solar thermal collectors and the carbon tax. Comparatively, the carbon tax can affect the configurations with CO2 capture more clearly than those without CO2 capture.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- Levelized cost of electricity
- Net present value
- Payback time
- Post-combustion CO2 capture
- Solar thermal energy
- System integration
- Coal combustion
- Combustion
- Costs
- Economic analysis
- Energy efficiency
- Solar collectors
- Solar energy
- Solar heating
- Thermal energy
- Levelized cost of electricities
- Post-combustion CO
- Carbon dioxide
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- Energy Conversion and Management (Sök värdpublikationen i LIBRIS)
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- Wang, F.
- Li, Hailong
- Zhao, J.
- Deng, S.
- Yan, Jinyue
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