Advancements in thermoelectric generators for enhanced hybrid photovoltaic system performance
Advancements in thermoelectric generators for enhanced hybrid photovoltaic system performance
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DOI：
10.1016/j.rser.2019.04.023
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发表时间：
2019-07
影响因子：
15.9
通讯作者：
Samson Shittu;Guiqiang Li;Y. Akhlaghi;Xiaoli Ma;Xudong Zhao;E. Ayodele
中科院分区：
文献类型：
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作者：
Samson Shittu;Guiqiang Li;Y. Akhlaghi;Xiaoli Ma;Xudong Zhao;E. Ayodele
光伏电池的有效热管理对于提高其转换效率和延长其使用寿命至关重要。太阳能电池的温度和效率成反比关系，因此太阳能电池的冷却是众多研究人员关注的一个重要研究目标。广泛采用的热管理技术之一是使用热电发电机来提高光伏发电的性能。光伏电池可以将太阳光谱中的紫外光和可见光区域直接转换为电能，而热电模块则利用红外区域来产生电能。因此，光伏发电和热电发电机的结合将能够利用更广泛的太阳光谱。此外，由于两个系统的补偿效应，两个系统的组合有可能提供增强的性能。热电发电机可以利用光伏发电产生的废热来产生额外的能量，从而提高混合系统的整体功率输出和效率。然而，由于两个系统的特性相反，集成非常复杂，因此两个系统的有效耦合至关重要。本文介绍了光伏和热电能量转换的概念、混合系统的研究重点领域、此类系统的应用、最新研究成果的讨论以及对未来研究的建议。详细讨论了混合光伏/热电发电机的所有基本要素和研究领域，因此，这篇综述将作为有价值的参考文献。
Effective thermal management of photovoltaic cells is essential for improving its conversion efficiency and increasing its life span. Solar cell temperature and efficiency have an inverse relationship therefore, cooling of solar cells is a critical research objective which numerous researchers have paid attention to. Among the widely adopted thermal management techniques is the use of thermoelectric generators to enhance the performance of photovoltaics. Photovoltaic cells can convert the ultra-violent and visible regions of the solar spectrum into electrical energy directly while thermoelectric modules utilize the infrared region to generate electrical energy. Consequently, the combination of photovoltaic and thermoelectric generators would enable the utilization of a wider solar spectrum. In addition, the combination of both systems has the potential to provide enhanced performance due to the compensating effects of both systems. The waste heat produced from the photovoltaic can be used by the thermoelectric generator to produce additional energy thereby increasing the overall power output and efficiency of the hybrid system. However, the integration of both systems is complex because of their opposing characteristics thus, effective coupling of both systems is essential. This review presents the concepts of photovoltaics and thermoelectric energy conversion, research focus areas in the hybrid systems, applications of such systems, discussion of the most recent research accomplishments and recommendations for future research. All the essential elements and research areas in hybrid photovoltaic/thermoelectric generator are discussed in detailed therefore, this review would serve as a valuable reference literature.