Experimental investigation of a novel low concentrating photovoltaic/thermal–thermoelectric generator hybrid system
Experimental investigation of a novel low concentrating photovoltaic/thermal–thermoelectric generator hybrid system
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DOI：
10.1016/j.energy.2018.10.046
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发表时间：
2019
期刊：
影响因子：
9
通讯作者：
Chen Haiping;Huang Jiguang;Z. Heng;Liang Kai;L. Haowen;Liang Shuangyin
中科院分区：
文献类型：
--
作者：
Chen Haiping;Huang Jiguang;Z. Heng;Liang Kai;L. Haowen;Liang Shuangyin
提出并研究了一种新型的低聚光光伏/温差发电（LCPV/T-TEG）混合系统。与传统的光伏/热电混合发电（PV/TEG）不同，该系统主要由复合抛物面聚光器、双层玻璃光伏板、微通道热管阵列、TEG以及数据采集与控制系统组成。TEG被设计为与热管阵列的冷侧相关联，热管阵列用作LCPV/T系统的冷却方法以提高PV效率，而不是直接粘附到PV板的背板上以用于实际应用。在北京某建筑物屋顶进行了LCPV/T-TEG系统的室外实验，测试分析了LCPV/T和TEG的环境条件、进出口温度和输出功率。日平均热效率为45.0%，加上日平均光伏发电效率11.8%和日平均三甘醇发电效率0.23%，日平均总效率达到57.03%.此外，考虑了冷却流量对系统性能的影响，结果表明，随着冷却流量的增加，光伏发电效率和三甘醇发电效率均增加.
This paper presents and explores a novel low concentrating photovoltaic/thermal–thermoelectric generator (LCPV/T-TEG) hybrid system. Unlike the conventional hybrid photovoltaic-thermoelectric generator (PV/TEG), the system mainly consists of a compound parabolic concentrator, a double-glazing PV panel, a micro-channel heat pipe array, the TEG and the data acquisition and control system. The TEG is designed to be associated with the cold side of heat pipe array which acts as the cooling method of the LCPV/T system to improve PV efficiency instead of directly adhering to the backplane of the PV panel for practical applications. The outdoor experiment of the LCPV/T-TEG system was accomplished on the rooftop of a building in Beijing on a sunny day and the environmental conditions, the inlet and the outlet temperature, and output power of the LCPV/T and TEG were tested and analyzed. The daily average thermal efficiency is 45.0%, add to the daily average PV electrical efficiency 11.8% and daily average TEG electrical efficiency 0.23%, the daily average overall efficiency reaches 57.03%.Furthermore, the effects of the cooling flow on the system performance are also considered and the results show that the PV and TEG efficiencies both increase with the increasing of the flow.