A parabolic dish/AMTEC solar thermal power system and its performance evaluation

Shuang-Ying Wu, Lan Xiao, Yiding Cao and You-Rong Li

Applied Energy, 2010, vol. 87, issue 2, 452-462

Abstract: This paper proposes a parabolic dish/AMTEC solar thermal power system and evaluates its overall thermal-electric conversion performance. The system is a combined system in which a parabolic dish solar collector is cascaded with an alkali metal thermal to electric converter (AMTEC) through a coupling heat exchanger. A separate type heat-pipe receiver is selected to isothermally transfer the solar energy from the collector to the AMTEC. To assess the system's overall thermal-electric conversion performance, a theoretical analysis has been undertaken in conjunction with a parametric investigation by varying relevant parameters, i.e., the average operating temperature and performance parameters associate with the dish collector and the AMTEC. Results show that the overall conversion efficiency of parabolic dish/AMTEC system could reach up to 20.6% with a power output of 18.54Â kW corresponding to an operating temperature of 1280Â K. Moreover, it is found that the optimal condenser temperature, corresponding to the maximum overall efficiency, is around 600Â K. This study indicates that the parabolic dish/AMTEC solar power system exhibits a great potential and competitiveness over other solar dish/engine systems, and the proposed system is a viable solar thermal power system.

Keywords: Solar; dish; collector; AMTEC; Thermal; to; electric; conversion; Efficiency; Parametric; analysis; Solar; thermal; power; system (search for similar items in EconPapers)
Date: 2010
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (33)

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