铁电晶体热电转化回热循环的优化准则  

ON THE OPTIMIZATION CRITERIA OF A REGENERATION CYCLE OF THE FERROELECTRIC GENERATOR

作　　者：严子浚[1] 

机构地区：[1]厦门大学物理系,厦门361005

出　　处：《太阳能学报》2002年第1期76-79,共4页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金项目 (5 99760 3 3 )

摘　　要：应用有限时间热力学理论 ,对铁电晶体热电转化回热循环的优化性能进行研究 ,考虑了循环中热阻及铁电晶体内部损耗这两个主要不可逆因素。得到新的优化准则及一些重要新结论 ,诸如求得循环的最大输出功率及其相应的效率、电流和特征参量等。结果可为铁电晶体电热转化装置的优化设计和最佳工作状态选择提供新的理论依据。Based on the finite-time thermodynamic theory, the optimal performance of a regeneration cycle of ferroelectric generator is studied. The two irreversible factors in the cycle: thermal resistance and internal loss of the ferroelectric, are taken into account. A new optimization criterion and conclusions, such as the maximum power output and its corresponding efficiency, current and characteristic parameter, are obtained. They may provide some new theoretical bases for the optimal design and the selection of optimal condition of a ferroelectric generator. Besides, some errors in the relevant literature operational are pointed out.

关 键 词：热电效应 铁电回热循环 不可逆损耗 优化准则 有限时间热力学理论 铁电晶体 输出功率 

分 类 号：TN619[电子电信—电路与系统] TK123[动力工程及工程热物理—工程热物理]