Evaluation of spectral regulation by selective emitter and filter under both ideal and actual conditions for solar thermophotovoltaic systems

Shaowen Cao, Qilin Cai, Yingshi Zhang, Qi Zhang, Qing Ye, Weifeng Deng and Xi Wu

Renewable Energy, 2023, vol. 217, issue C

Abstract: Selective emitter and filter are different spectral modules in a solar thermophotovoltaic (STPV) system, whereas the guidelines of their applications for various operation conditions are lacking, especially when the thermalization of the photovoltaic cell is considered. To conduct a comprehensive analysis, an energy transfer model of the STPV system was established based on spectral modules under both ideal and actual conditions, and in particular the cooling consumption was considered. It is observed that when an emitter (E system) or emitter combined with a filter (E + F system) is used, the system efficiency slowly increases with increasing concentration ratio (CR). When a filter (F system) is utilized, an initial increase followed by a subsequent decrease in the system efficiency is shown. The InGaAs cell is suitable for the E + F system, the GaSb cell is preferred for the E system, and the Si cell is better suited for the F system. The cooling consumption occupies up to 1100 W, which can cause the system efficiency to be below 0, indicating that the generated power cannot drive the cooling device. In particular, ideal spectral regulation is not superior to the actual spectral regulation when PV cell thermalization is considered. A foundation for optimization of spectral modules and application of STPV systems can be established by this work.

Keywords: Solar thermophotovoltaic system; Heat dissipation device; Emitters; Filters; System efficiency (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:217:y:2023:i:c:s096014812301159x

DOI: 10.1016/j.renene.2023.119244

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