Optimal Number of Thermoelectric Couples in a Heat Pipe Assisted Thermoelectric Generator for Waste Heat Recovery
Optimal Number of Thermoelectric Couples in a Heat Pipe Assisted Thermoelectric Generator for Waste Heat Recovery
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DOI：
10.1007/s11664-016-5223-9
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发表时间：
2017-01
影响因子：
2.1
通讯作者：
Tongjun Liu;Tongcai Wang;Weiling Luan;Qimin Cao
中科院分区：
文献类型：
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作者：
Tongjun Liu;Tongcai Wang;Weiling Luan;Qimin Cao
通过热电发电机回收废热是一种很有前途的提高能量转换效率的方法。提出了一种热管辅助温差发电系统。热管的可膨胀的蒸发器和冷凝器表面便于热电（TE）模块的密集组装以构成紧凑的装置。与传统的层状结构温差发电器相比，该系统可以安装更多的热电偶，从而提高输出功率。为了研究高压三甘醇的性能和最佳TE对的数量，提出了一种理论模型，并通过实验结果进行了验证。进一步的理论分析结果表明，通过优化进气温度、加热段热阻和冷却结构热阻等参数，可以进一步提高高压三甘醇的性能。此外，应用适当数量的TE耦合是重要的，以获得最佳的功率输出性能。
Waste heat recovery through thermoelectric generators is a promising way to improve energy conversion efficiency. This paper proposes a type of heat pipe assisted thermoelectric generator (HP-TEG) system. The expandable evaporator and condenser surface of the heat pipe facilitates the intensive assembly of thermoelectric (TE) modules to compose a compact device. Compared with a conventional layer structure thermoelectric generator, this system is feasible for the installment of more TE couples, thus increasing power output. To investigate the performance of the HP-TEG and the optimal number of TE couples, a theoretical model was presented and verified by experiment results. Further theoretical analysis results showed the performance of the HP-TEG could be further improved by optimizing the parameters, including the inlet air temperature, the thermal resistance of the heating section, and thermal resistance of the cooling structure. Moreover, applying a proper number of TE couples is important to acquire the best power output performance.