选择性元膜增强聚光太阳能热光伏能量转换

Proceeding of Proceedings of the 9th International Symposium on Radiative Transfer, RAD-19 Pub Date : 1900-01-01 DOI:10.1615/RAD-19.420

Q. Ni, R. McBurney, H. Alshehri, Liping Wang

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引用次数: 2

摘要

本文对一种具有GaSb电池、选择性元膜吸收器和发射器的聚光太阳能热光伏(CSTPV)系统进行了详细的理论分析。结果表明，当浓度因子在1 ~ 100范围内变化时，CSTPV系统效率在0.1% ~ 7.2%之间。对能量损失机理的分析表明，对于基于元膜的CSTPV系统，入射太阳能有一半是通过吸收器顶部表面的热辐射损失的。为了提高CSTPV系统的效率，在50个太阳下优化了元膜吸收层和发射层的厚度，将CSTPV系统的效率从5.8%提高到7.8%。并对吸收与发射面积比的影响进行了优化。该研究可促进具有易于大规模制造的超膜吸收体和发射体的太阳能热光伏系统的发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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CONCENTRATING SOLAR THERMOPHOTOVOLTAIC ENERGY CONVERSION ENHANCED BY SELECTIVE METAFILM

This work performed a detailed theoretical analysis for a concentrating solar thermophotovoltaic (CSTPV) system with a GaSb cell paired with both selective metafilm absorber and emitter. The results showed that the CSTPV system efficiency is between 0.1% and 7.2% when the concentration factor varies from 1 to 100. The analysis on energy loss mechanisms showed that for a metafilm based CSTPV system, half of the incident solar energy is lost through the thermal emission from the top surface of the absorber. In order to enhance the CSTPV system efficiency, the layers thickness of both metafilm absorber and emitter were optimized at 50 suns, increasing the CSTPV system efficiency from 5.8% to 7.8%. The effect of the area ratio of absorber to emitter was also optimized. This work can promote the development of solar thermophotovoltaic system with metafilm absorber and emitter which are easy to be fabricated in large scale.

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Proceeding of Proceedings of the 9th International Symposium on Radiative Transfer, RAD-19

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