内可逆四热源吸收式制冷机生态学最优性能  

ECOLOGICAL OPTIMAL PERFORMANCE OF ENDOREVERSIBLE FOUR-HEAT-RESERVOIR ABSORPTION REFRIGERATOR

作　　者：陶桂生[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学研究生院,武汉430033

出　　处：《太阳能学报》2009年第7期934-938,共5页Acta Energiae Solaris Sinica

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-1006);全国优秀博士学位论文作者专项资金(200136)

摘　　要：基于能量分析的观点,建立了反映四热源吸收式制冷机制冷率与熵产率之间最佳折中的生态学准则,分析了线性(牛顿)传热定律下内可逆四热源吸收式制冷机的生态学最优性能。导出了生态学目标与制冷系数的优化关系和最大生态学目标值及其相对应的制冷系数、制冷率和熵产率,确定了循环主要参数的生态学优化选择范围。数值算例分析了制冷率目标和生态学目标的相互关系,计算表明生态学准则对吸收式制冷机优化设计是一种具有长期效应的可选优化目标。On the basis of an endoreversible four-heat-reservoir absorption refrigerator cycle with linear （Newtonian） heat transfer law, an ecological optimization criterion was proposed for the best mode of operation of the cycle, which consists of maximizing a function representing the best compromise between the cooling load and the entropy production rate. The optimal relation between the ecological criterion and the coefficient of performance, the optimal relation between the entropy production rate and the coefficient of performance, and the maximum ecological criterion and the corresponding coefficient of performance, cooling load and entropy production rate were derived using finite-time thermodynamics. Moreover, the ecological criterion was compared with that for the cooling load criterion by numerical example. The results reflect that ecological criterion is a candidate objective having long-term meanings for optimal design of absorption refrigerators.

关 键 词：四热源吸收式制冷机 生态学准则 制冷率 制冷系数 熵产率 

分 类 号：TK12[动力工程及工程热物理—工程热物理]