【摘要】 为保护臭氧层，《蒙特利尔议定书》规定ＣＦＣ－１２为首批禁用物质，因此，寻找其替代物的工作日益紧迫。针对目前各种替代物的不足之处，运用多目标决策分析方法，筛选出一种新的绿色环保制冷剂“清华２号”（ＴＨＲ０２），其热物理性能和循环参数与ＣＦＣ－１２非常接近，并进行了压缩机、润滑油和冰箱的性能试验以及循环的变工况模拟分析。结果表明ＴＨＲ０２具有以下特点：不破坏臭氧层，温室效应低，不燃无毒，适用于原制冷系统、压缩机与冷冻油，热工性能好，可直接灌注，长期替代ＣＦＣ－１２，且可进一步替代ＨＦＣ－１３４ａ。更多还原

【Abstract】 The Copenhagen revision to the Montreal Protocol states that CFC 12 should be phased out by 1996 (in developed countries). But the alternatives now used have some shortcomings. By using the multiple objective decision making methods, mixture THR02 is proposed as a new alternative to CFC 12 and HFC 134a. This paper presents the screening of alternatives, characteristics of THR02, the thermal performance and long period tests of compressor, and the domestic refrigerator test. Also, the modeling evaluation of varied working conditions is described. THR02 has characteristics: zero ODP, low GWP value, nonflammable, nontoxic, good thermal performance. It is adaptable to existing system without modifying lubricant oil and compressor. THR02 is one of the prospective long term refrigerant as “drop in” alternative.更多还原