太阳能两级喷射式制冷系统性能的分析  

The exergy analysis on the two-stage ejector refrigeration system performance of solar refrigeration

作　　者：王子敬[1] 王华[1] 王辉涛[1] 包桂蓉[1] 李勤[1] 

机构地区：[1]昆明理工大学 冶金节能减排教育部工程研究中心,云南昆明650093

出　　处：《能源工程》2013年第1期44-48,共5页Energy Engineering

基　　金：国家自然科学基金资助项目(51066002);NSFC-云南联合基金资助项目(U0937604);云南省科技强省计划资助项目(2008KA002);云南省发改委资助项目(2008CD001)

摘　　要：在特定工况下对太阳能两级喷射式制冷系统进行了分析,计算了系统中各个设备的损失,讨论了发生温度和蒸发温度的变化对制冷子系统中各个设备的损失的影响。结果表明,太阳能集热器的损失最大,为47.67%;其次为冷凝器,损失为21.15%。在冷凝温度、蒸发温度条件一定的情况下,系统存在一个最佳的发生温度使得系统的总损失最小。The exergy analysis was made for the two-stage ejector refrigeration system under a given operating condition. The exergy loss rate of each component was calculated. The effects of generator temperature and evaporation tempera- ture on the exergy losses of each component were discussed. The results indicated that the exergy loss in the solar col- lector was the maximum and its exergy loss rate was 47.67%. The second largest exergy loss was the condenser with an exergy loss rate of 21. 15%. As the other conditions were fixed, there was an optimal generator temperature which made total exergy loss the lowest.

关 键 词：太阳能制冷 两级喷射器 [火用]分析 

分 类 号：TK519[动力工程及工程热物理—热能工程]