Enhanced performance of solar-driven photovoltaic-thermoelectric hybrid system in an integrated design
Enhanced performance of solar-driven photovoltaic-thermoelectric hybrid system in an integrated design
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DOI：
10.1016/j.solener.2012.12.002
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发表时间：
2013-02-01
期刊：
影响因子：
6.7
通讯作者：
Shi, Yongming
中科院分区：
文献类型：
--
作者：
Deng, Yuan;Zhu, Wei;Shi, Yongming
成功研制了一种集成设计的太阳能驱动混合发电系统，该系统由硅薄膜太阳能电池、温差发电器和集热器组成。STC吸收部分太阳能并直接将其转化为电能。STC产生的不需要的废热和部分太阳能被集热器收集并传导到TEG以产生热电转换。讨论了HGS的结构和性能。采用有限元法对TEG进行了数值模拟，得到了TEG的热流分布。结果表明，TEG和STC的性能同步提高，由于一体化的设计。特别是集成在HGS中的TEG的热侧上的热通量增加了十倍以上。在HGS中获得了393 mW的总产生功率，这是单个STC的两倍。所开发的HGS是一种很有前途的电源系统，它可以有效地拓宽太阳能光谱的使用范围，提高太阳能转换的功率输出。(c)2012爱思唯尔有限公司保留所有权利。
A solar-driven hybrid generation system (HGS) in an integrated design is successfully fabricated, which consists of a silicon thin-film solar cell (STC), thermoelectric generators (TEGs) and a heat collector. STC absorbs parts of the solar energy and directly converts it into electric energy. The undesired waste heat from STC and parts of the solar energy are collected by the heat collector and conducted to TEG to produce thermoelectric conversion. The structure and the performance of HGS are discussed. A numerical simulation is also performed on TEG to obtain the distribution of heat flux using finite element method (FEM). The results show that the performances of TEG and STC are synchronously enhanced due to the integrated design. Especially the heat flux on the hot side of TEG integrated in HGS increases by more than tenfold. The total generated power of 393 mW is obtained in HGS, which is twice larger than that of single STC. The developed HGS is a promising power system which can effectively broaden the use of the solar spectrum and increase the power output in solar conversion. (c) 2012 Elsevier Ltd. All rights reserved.