Spectrum splitting for efficient utilization of solar radiation: a novel photovoltaic–thermoelectric power generation system

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• 作者：Esam Elsarrag ; Hans Pernau ; Jana Heuer ; Nibul Roshan…
• 关键词：Photovoltaic ; Thermoelectric ; Hybrid system ; Renewable energy ; Solar energy
• 刊名：Renewables
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：2
• 期：1
• 全文大小：2,308 KB
• 刊物类别：Renewable and Green Energy; Energy Technology; Energy Policy, Economics and Management; Water Indust
• 刊物主题：Renewable and Green Energy; Energy Technology; Energy Policy, Economics and Management; Water Industry/Water Technologies;
• 出版者：Springer Singapore
• ISSN：2198-994X

文摘

Standard photovoltaic solar cells (PV cells) use only about half of the light spectrum provided by the sun. The infrared part is not utilized to produce electricity. Instead, the infrared light heats up the PV cells and thereby decreases the efficiency of the cell. Within this research project, a hybrid solar cell made of a standard PV cell and a thermally driven thermoelectric generator (TEG) is being developed. The light of the sun splits at about 800 nm. The visible and ultraviolet part is transferred to the PV cell; the infrared part illuminates the thermal TEG cell. With the hybrid solar cell, the full solar spectrum is exploited. In this paper, theoretical and experimental results for improving the performance of thermoelectric elements coupled with photovoltaic modules have been presented. The proposed concepts and the experimental results have provided a key input to develop a large scale of a hybrid PV-TE system.