Conceptual design and techno-economic assessment of integrated solar combined cycle system with DSG technology

Journal Article · Wed Sep 15 00:00:00 EDT 2010 · Solar Energy

DOI:https://doi.org/10.1016/J.SOLENER.2010.05.007· OSTI ID:21337924

Nezammahalleh, H; Farhadi, F; Tanhaemami, M ^[1]

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1. Chemical and Petroleum Engineering Department, Sharif University of Technology, No 593 Azadi Ave., Tehran (Iran)

Direct steam generation (DSG) in parabolic trough collectors causes an increase to competitiveness of solar thermal power plants (STPP) by substitution of oil with direct steam generation that results in lower investment and operating costs. In this study the integrated solar combined cycle system with DSG technology is introduced and techno-economic assessment of this plant is reported compared with two conventional cases. Three considered cases are: an integrated solar combined cycle system with DSG technology (ISCCS-DSG), a solar electric generating system (SEGS), and an integrated solar combined cycle system with HTF (heat transfer fluid) technology (ISCCS-HTF). This study shows that levelized energy cost (LEC) for the ISCCS-DSG is lower than the two other cases due to reducing O and M costs and also due to increasing the heat to electricity net efficiency of the power plant. Among the three STPPs, SEGS has the lowest CO{sub 2} emissions, but it will operate during daytime only. (author)

• OSTI ID: 21337924
• Journal Information: Solar Energy, Vol. 84, Issue 9; Other Information: Elsevier Ltd. All rights reserved; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR THERMAL POWER PLANTS
COMBINED CYCLES
PARABOLIC TROUGH COLLECTORS
CARBON DIOXIDE
OPERATING COST
STEAM GENERATION
HEAT TRANSFER FLUIDS
ECONOMIC ANALYSIS
DESIGN
EFFICIENCY
ELECTRIC POWER
EMISSION
INVESTMENT
Direct steam generation
Integrated solar combined cycle
Techno-economic assessment