考虑热漏损失的实际空气制冷机制冷率密度优化  

Cooling Load Density Optimization of Irreversible Air Refrigeration Cycles With the loss of heat leak

作　　者：伍文君[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学动力工程系

出　　处：《制冷》2005年第2期5-10,共6页Refrigeration

基　　金：国家重点基础研究发展规划资助(973)项目(G2000026301);全国优秀博士学位论文作者专项奖金资助项目(200136)

摘　　要：以制冷率密度作为热力性能目标,综合考虑热漏、热阻和循环内不可逆性,对不可逆简单空气制冷机进行分析,导出了制冷率密度和制冷系数解析关系式,对制冷率密度进行了优化,并由数值计算分析了热漏、压比、热导率分配等参数对制冷率密度的影响特点。The performance optimization of an irreversible air refrigeration cycle with the losses of heat leak, heat resistance and the internal irreversibility is carried out by taking the cooling load density as the optimization objective in this paper.The analytical relations about cooling load density and coefficient of performance of the cycle are derived.The effects of heat leak, pressure ratio and the allocation of heat exchanger inventory on the cooling load density of the refrigerator are shown by detailed numerical examples.

关 键 词：制冷率密度 不可逆空气制冷机 热漏 热阻 内不可逆性 优化 

分 类 号：TB61[一般工业技术—制冷工程]