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Sustainable Energy 2020
高输出功率温差发电系统的研究
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Abstract:
本文旨在研发某种高效率、高输出功率的温差发电技术；并对该技术在热电设备应用中的多种工作条件下的功率进行了系统的研究。首先讨论对温差发电模块及系统进行了建模、设计和建造；其次汇报一种最先进的热电模块测量仪器的研究成果，该仪器可对关键热电特性参数进行现场实时测量。此外，对多种热电特性进行了原位实时表征，这些包括效率、电流电压(即I-V)曲线、功率电压(P-V)曲线、外力响应曲线以及功率与温度(P-T)响应曲线。经过深入研究并建造了大功率热能收集装置；对热电工程设备做出了重要的创新，并很好应用于尾气热能的废热收集利用的研发项目。最后，研究结果显示，三级联设备的仿真计算效率为19%以上，双级联的实验测试效率为10.6%以上。这些结果与现有技术相比，其输出功率和热电效率都得到了很大的提高。
An alternative energy technology based on thermoelectricity generation is investigated and its power is systematically investigated under various work conditions in thermoelectric applications. In addition, authors have modelled, designed, and constructed the thermoelectric power system. Moreover, they have invented a state-of-the-art table-top instrument that may evaluate several critical thermoelectric characters in situ. Several aspects of the thermoelectric features are characterized in situ that include the efficiency, force response curve, current-voltage (i.e., I-V) curve, power-voltage (P-V) curve, and the power versus temperature (P-T) responses. Furthermore, they have successfully built a high-power heat harvester and have applied to the automotive case study in details. Finally, they have obtained the multi-stack thermoelectric devices that have improved characters; e.g., both the power output and the thermoelectric efficiency have improved in comparison to the devices commercially available. The investigation leads to 19% efficiency in triple stack devices and 10.6% in the dual-stack one.
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