不可逆四热源吸收式制冷系统的基本优化关系及其性能分析  

THE FUNDAMENTAL OPTIMUM RELATION OF A FOUR-HEAT-SOURCE IRREVERSIBLE ABSORPTION REFRIGERATION SYSTEM AND ITS PERFORMANCE ANALYSIS

作　　者：施哲强[1] 陈金灿[1] 

机构地区：[1]厦门大学物理系,厦门361005

出　　处：《低温工程》2001年第4期58-64,共7页Cryogenics

基　　金：福建省自然科学基金资助项目 (E0 0 10 0 0 7)

摘　　要：应用四热源内可逆循环模型研究吸收式制冷机受传热不可逆性影响时的性能。导出循环的单位面积制冷负载和制冷系数间的基本优化关系。由此讨论循环的各种优化性能 ,从而得到一些有意义的新结果。进而引进不可逆因子 ,用于分析工质内不可逆性的影响 ,使结果更接近于实际 。A four heat source endoreversible cycle model is used to investigate the performance of an absorption refrigerator affected by the irreversibility of heat transfer.The fundamental optimum relation between the cooling load per unit heat transfer area and the coefficient of performance of the cycle is derived and used to discuss the various optimum performances of the cycle.Some new significant results are obtained.Moreover,the irreversible factor is introduced to analyze the influence of the internal irreversibility of the working substance,so that the results obtained here are more realistic and can play better an instructive role for the optimal design and operation of absorption refrigerators.

关 键 词：吸收式制冷机 不可逆四热源循环 制冷负载 制冷系数 优化分析 吸收式制冷系统 

分 类 号：TB651[一般工业技术—制冷工程] TB61