氯化钙与氯化钡的二级吸附式制冷性能  

Performance Study of Two-Stage Adsorption Refrigeration Cycle Based on CaCl_2/BaCl_2-NH_3 Working Pair

作　　者：胡远扬[1] 王丽伟[1] 王健[1] 罗伟莉[1] 王如竹[1] 

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200240

出　　处：《工程热物理学报》2011年第7期1087-1090,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50806043);国家百篇优秀博士论文资助项目

摘　　要：针对100℃以下温度低品位热能的利用,提出二级吸附式制冷循环,建立吸附性能测试实验台。分别以氯化钙与氯化钡作中温盐与低温盐,测试当冷却温度为30℃时,不同热源温度与不同蒸发温度条件下吸附剂的循环吸附量,并在此基础上,分析二级吸附式制冷系统的性能。研究表明,二级吸附式制冷循环能够满足全年冷冻工况的应用,并且当热源温度、冷却温度及蒸发温度分别为80℃、30℃及-20℃时,氯化钙的循环吸附量、二级吸附式制冷系统的COP与SCP分别为0.490 kg/kg,0.24与85.6 W/kg。To utilize low-grade heat energy below 100℃,a two-stage adsorption refrigeration cycle was proposed and adsorption performance testing unit was also established.CaCl_2 and BaCl_2 were chosen as middle-temperature salt and low-temperature salt,respectively.Cycle adsorption quantities of the adsorbents under different heating and evaporating temperatures were tested,based on which COP and SCP of the two-stage adsorption system were obtained.Results showed that the two-stage adsorption refrigeration cycle is apt for utilization of low-grade heat energy on freezing application. Cycle adsorption quantity of CaCl_2,COP and SCP of the two-stage adsorption refrigeration system are 0.490 kg/kg,0.24 and 85.6 W/kg,respectively,when heating temperature,cooling temperature and evaporating temperature are 80,30 and-20℃,respectively.

关 键 词：低温热源 二级 吸附冷冻 循环 

分 类 号：TK114[动力工程及工程热物理—热能工程] TB657.1[一般工业技术—制冷工程]