不可逆布雷顿制冷循环的性能优化  

THE OPTIMIZATION ON THE PERFORMANCE OF IRREVERSIBLE BRAYTON REFRIGERATION CYCLE

作　　者：林比宏[1,2] S.K.Tyagi 陈金灿[1] 

机构地区：[1]厦门大学物理系 [2]泉州师范学院物理系泉州362000

出　　处：《低温工程》2004年第3期41-44,52,共5页Cryogenics

基　　金：福建省教育厅科技项目 (JA0 315 3)资助

摘　　要：基于不可逆布雷顿制冷循环模型 ,导出循环制冷率和性能系数之间优化关系所应满足的方程 ,利用数值解 ,研究内不可逆性和传热不可逆性对优化性能的影响。讨论了循环的各种优化性能 ,所得结果对实际制冷系统的优化设计有一定的指导意义。Based on the irreversible Brayton refrigeration cycle model, the satisfied equation about the optimal relation between the cooling rate and the coefficient of performance is derived. By using numerical solutions, the influence of the internal irreversibility and the heat transfer irreversibility on the optimal performance of the cycle is investigated. Several optimal performances of the cycle are discussed. The results obtained will be helpful to the optimal design of the practical refrigeration system.

关 键 词：布雷顿制冷循环 制冷率 性能系数 优化关系 优化性能 热力学 

分 类 号：TB61[一般工业技术—制冷工程]