摘要
本文应用有限时间热力学理论分析半导体温差发电器的优化性能，导出在导热、热漏和焦耳热三种主要不可逆因素影响下发电器的输出功率和效率，由此讨论了发电器的性能与其半导体材料、元件结构以及负载电阻等之间的关系，获得一系列重要结论，它对如何合理地选择发电器的负载电阻和优化半导体元件等提供了一些新的理论依据．
Abstract The optimal performance of a semiconductor thermoelectric generator iapanalysed by using the theory of finite-time thermodynamics.The power output andefficiency of the generator under the influence of three main irreversible effects ofheat conduction, heat leak, and Joule heat are derived. From them, the relationsamong the performance of the generator, the parameters of the semiconductor mater ials, the configurations of the semiconductor elements, as well as the load resistanceare discussed. A series of important conclusions, which may provide some new theo retical bases for the problems how to choose the load resistance of the generatorreasonably and to optimize the configurations of the semiconductor elements in the generator, are obtained.
基金
国家自然科学基金
