热阻和回热损失对铁电斯特林制冷机的(火用)经济优化性能的影响  

THE EFFECT OF THERMAL RESISTANCES AND REGENERATIVELOSSES ON THE EXERGOECONOMICAL OPTIMAL PERFORMANCEOF A FERROELECTRIC STIRLING REFRIGERATOR

作　　者：杨惠山[1] 

机构地区：[1]泉州师范学院物理系,福建泉州362000

出　　处：《低温工程》2004年第1期49-51,59,共4页Cryogenics

基　　金：福建省教育厅B类科研项目(JB02184);泉州市科委基金(Z2001010)

摘　　要：应用有限时间(火用)分析法,研究热阻及回热损失对铁电斯特林制冷机火用经济优化性能的影响。利用铁电晶体的热力学特性,考虑传热规律服从牛顿定律,得到铁电斯特林制冷机的基本优化关系。以利润率为目标,导得最大利润率情况时的制冷系数及其他性能参数,所得结论可为铁电斯特林制冷机的研制和设计提供指导。Using the method of finite-time exergoeconomic analysis, the effect of the irreversibili- ties due to thermal resistances and regenerative losses on the exergoeconomical optimal performance of a ferroelectric Stirling refrigerator is investigated. Based on the thermodynamics properties of ferroelectric material and Newton's heat-transfer law, the fundamental optimum relations and general performance characteristics of the cycle are obtained. Moreover, the profit of the ferroelectric Stirling refrigerator is taken as the optimization objective, the coefficient of cooling at the maximum profit and some important performance parameters are calculated. The results obtained will be helpful for the optimal design and operation of real ferroelectric Stirling refrigerator.

关 键 词：热阻 回热损失 铁电斯特林制冷机 制冷系数 Yong经济优化 

分 类 号：TB651[一般工业技术—制冷工程]