不同工质对吸收式变热器热力性能的影响  

Performance Analysis of an Absorption Heat Transformer with Different Working Pairs

作　　者：尹娟[1] 史琳[1] 朱明善[1] 韩礼钟[1] 

机构地区：[1]清华大学热能工程系,北京100084

出　　处：《制冷学报》2000年第3期19-24,共6页Journal of Refrigeration

摘　　要：吸收式变热器是一种有广阔应用前景的余热回收利用装置 ,可以有效回收 50 %左右的低品位余热 ,但还需要进一步分析可用工质对和它们相关的性能参数。本文以H2 O/LiBr、TFE/NMP、TFE/E1 81和TFE/PYR为工质对 ,对单级吸收式变热器进行了热力学分析。结果表明H2 O/LiBr适用于低温热回收 ,TFE/NMP、TFE/E1The absorption heat transformer is a promising system which can recover about 50% of the waste heat. However,there exists a need for identifying suitable working pairs and for evaluating their relative performance characteristics.As an initial step,this paper presents a comparative performance study for an absorption heat transformer with H 2O/LiBr,TFE/NMP,TFE/E181and TFE/PYR.The results show that H 2O/LiBr is suitable at lower operating temperatures and TFE/NMP,TFE/E181and TFE/PYR are suitable at higher operating temperatures.

关 键 词：吸收式变热器 H2O/LiBr 制冷工质 热力性能 

分 类 号：TB657.5[一般工业技术—制冷工程] TB64