摘要
建立多级不可逆耦合制冷系统的一般循环模型，探讨热阻和热漏等不可逆因素对其循环性能的影响．以制冷系数为目标函数，对制冷循环系统的性能进行优化分析．导出制冷系数与比制冷率间的基本优化关系，确定最大制冷系数及其对应的比制冷率，并对其它优化性能作了分析讨论．所得结果具有普遍意义。
A general cycle model of a multi stage irreversible combined refrigeration system is established. The influence of thermal resistance and heat leak on the performance of the cycle is studied. The coefficient of performance is taken as an objective function. The performance of the refrigeration system is optimized. The fundamental optimum relation between the coefficient of performance and the specific cooling rate is derived. The maximum coefficient of performance and the corresponding specific cooling rate are determined. Other optimum performances are also discussed. The results obtained here are of general significance and can reveal the general performance characteristics of refrigeration systems.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1999年第4期519-523,共5页
Journal of Xiamen University：Natural Science
基金
国家教委留学回国人员科研启动基金
关键词
多级制冷循环
热阻
热漏
制冷系数
制冷系统
Multi stage refrigeration cycle, Thermal resistance, Heat leak, Coefficient of performance, Specific cooling rate, Optimal analysis
