Experimental and theoretical analysis of a hybrid solar thermoelectric generator with forced convection cooling
Experimental and theoretical analysis of a hybrid solar thermoelectric generator with forced convection cooling
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DOI：
10.1088/1361-6463/50/1/015501
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发表时间：
2017-01
期刊：
影响因子：
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通讯作者：
P. Sundarraj;R. Taylor;D. Banerjee;D. Maity;S. Roy
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文献类型：
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作者：
P. Sundarraj;R. Taylor;D. Banerjee;D. Maity;S. Roy
混合太阳能热电联产(HSTEGs)由于其潜在的热电联产能力，近年来得到了广泛的研究关注。本文对HSTEG系统的电学和热学性能进行了理论和实验研究。为了验证理论模型的有效性，开发了实验室规模的强制对流冷却HSTEG系统。HSTEG由六个热电发电机模块、一个电加热器和一个不锈钢冷却块组成。实验分析表明，在加热功率为382W的情况下，当TEG组件的平均温差为92℃时，HSTEG系统的最大输出功率为4.7W，电效率为1.2%，热效率为61%。实验结果表明，HSTEG系统的实验结果与理论预测相符。这一实验/理论分析也可作为评价强制对流冷却HSTEG系统性能的指导。
Hybrid solar thermoelectric generators (HSTEGs) have garnered significant research attention recently due to their potential ability to cogenerate heat and electricity. In this paper, theoretical and experimental investigations of the electrical and thermal performance of a HSTEG system are reported. In order to validate the theoretical model, a laboratory scale HSTEG system (based on forced convection cooling) is developed. The HSTEG consists of six thermoelectric generator modules, an electrical heater, and a stainless steel cooling block. Our experimental analysis shows that the HSTEG is capable of producing a maximum electrical power output of 4.7 W, an electrical efficiency of 1.2% and thermal efficiency of 61% for an average temperature difference of 92 °C across the TEG modules with a heater power input of 382 W. These experimental results of the HSTEG system are found to be in good agreement with the theoretical prediction. This experimental/theoretical analysis can also serve as a guide for evaluating the performance of the HSTEG system with forced convection cooling.