Hybrid photovoltaic-thermoelectric system using a novel spectral splitting solar concentrator
Hybrid photovoltaic-thermoelectric system using a novel spectral splitting solar concentrator
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DOI：
10.1016/j.enconman.2021.114981
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发表时间：
2022-01
影响因子：
10.4
通讯作者：
M. Alnajideen;G. Min
中科院分区：
文献类型：
--
作者：
M. Alnajideen;G. Min
设计并构建了一种采用新型太阳能聚光器的光电-热电混合系统，以验证基于光谱分裂策略提高光电转换效率的可行性。该聚光器由四个矩形分色镜组成，它们以交叉的V形槽结构排列，将可见光谱反射并集中到中心的光伏电池上，同时将红外光谱传递到热吸收器上，为热电发电机产生热量。实验结果表明，混合PV-TE系统的总效率为16.9%相比，15.9%的相同的配置，除了使用镜面铝镜。由于红外光谱中的光能的热电收集，实现了6.3%的总效率的增加。结果还显示，功率输出从裸电池中的12.41 mW显著增加到聚光系统中相同电池的62.04 mW，表明使用聚光系统的优点，特别有利于高成本太阳能电池，如GaAs和GaInP。
A hybrid photovoltaic-thermoelectric (PV-TE) system employing a novel solar concentrator is designed and constructed to demonstrate the feasibility of improving the overall efficiency of light-to-electricity conversion based on spectral splitting strategy. The concentrator consists of four rectangular dichroic mirrors arranged in a crossed V-trough configuration that reflects and concentrates the visible spectrum onto a photovoltaic cell in the centre while passes the infrared spectrum onto a thermal absorber to produce heat for a thermoelectric generator. The experimental results show that the overall efficiency of the hybrid PV-TE system is 16.9% compared to 15.9% of the same configuration except for using specular aluminium mirrors. An increase in the overall efficiency by 6.3% was achieved due to thermoelectric harvesting of the light energy in infrared spectrum. The results also show that a significant increase in the power output from 12.41 mW in the bare cell to 62.04 mW of the same cell in the concentrated system, indicating the advantages of using concentration system, particularly beneficial to high-cost solar cells, such as GaAs and GaInP.