低温热源驱动的二级吸附冷冻循环实验研究与性能分析  

Experimental Study and Performance Analysis on a Two-stage Adsorption Freezing Cycle Driven by Low-temperature Heat Source

作　　者：胡远扬[1] 王健[1] 蔡浩仁[1] 王丽伟[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：《制冷学报》2010年第6期6-11,共6页Journal of Refrigeration

基　　金：国家自然科学基金项目(50806043)~~

摘　　要：在冷冻应用方面,传统的吸附式制冷工质对在热源温度低于90℃、冷凝温度高于25℃的条件下,很难实现-10℃以下的冷冻。为了实现100℃以下的太阳能或废热利用,这里提出了二级吸附式制冷循环,建立了性能测试实验台。采用CaCl2-BaCl2-NH3作为工质对,利用85℃热源驱动,测试不同蒸发温度与冷凝温度下吸附剂的吸附与解吸性能。结果表明,二级吸附式制冷能够实现-20℃下的冷量输出,同时,冷却水温度为25℃时,氯化钙的循环吸附量、二级吸附式制冷COP与SCP分别为0.598kg/kg,0.24,106.6W/kg。In order to utilize solar energy or waste heat below 100℃,a two-stage adsorption refrigeration cycle was proposed and a performance test rig was established.The adsorption and desorption performance of adsorbents at different evaporation and condensation temperatures was tested using the CaCl2-BaCl2-NH3 as the working pair.The results show that the present two-stage adsorption refrigeration cycle could obtain cooling output with-20℃ when the temperature of heat resource was 85℃.In addition,the cycle adsorption quantity of calcium chloride,COP and SCP of the cycle were 0.598 kg/kg,0.24,and 106.6 W/kg,respectively,when the temperature of the cooling water was 25℃.

关 键 词：热工学 低温热源 吸附式制冷 制冷性能 

分 类 号：TB611[一般工业技术—制冷工程] TK511.3[动力工程及工程热物理—热能工程]