HCFC22替代工质的吸收制冷特性

1引言随着人类生存环境的日益恶化和全球能源危机的日益加剧，吸收式制冷以及吸收制冷工质正越来越受到人们的关注。氟利昂与有机溶剂组成的工质对是当前人们研究得较多一种工质对，其中R22／DMF（二甲基甲酸胺）体系曾被认为是较有前途的一种新型制冷一吸收工质对［‘］。然而，随着蒙特利尔议定书所规定HCFC禁用日期的；临近，R22即将被淘汰，因此，研究吸收制冷中R22的替代问题已变得越来越重要。ZI质物性本文涉及的主要计算有：溶液的汽液平衡计算、制冷剂的汽液平衡计算和工质的恰值计算等。本文中制冷剂之间的汽液平衡由改进PT…

THE CHARACTERISTICS OF ABSORPTION REFRIGERATION USING NOVEL ALTERNATIVE REFRIGERANT

Absorption refrigeration using R22 as refrigerant and organic solution as absorbent has been widely studied and has even found its application in some cases. But with the forthcoming phasing out date of R22, the research on alternative of R22 in absorption refrigeration is becoming more and more important. In this paper, the characteristics of the cycle using R134a+R32/DMF and R22/DMF respectively under different working conditions were calculated and analyzed. The comparison shows that the new working pair will not only avoid the depletion of the ozone, but also have a higher COP and refrigeration capacity.