三元混合工质R32/R125/R134a的组分浓度变化特征线及其对循环性能的影响  

Concentration Characteristic Line of Refrigerant Mixture R32/Rl25/R134a and Its Performance Analysis

作　　者：邵亮亮[1] 张春路[1] 

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200030

出　　处：《制冷学报》2005年第3期30-32,共3页Journal of Refrigeration

摘　　要：混合工质的充灌或泄漏都可能造成制冷空调系统中工质组分浓度发生变化,影响系统性能。本文研究了R407系列混合工质组分浓度变化的特性,获得了组分浓度变化的特征线,并研究了当组分浓度沿特征线变化时,制冷空调系统循环性能的变化规律,可用于指导采用R407工质的系统设计。Charge and leak processes of zeotropic refrigerant can cause the change of mixture concentration in refrigerant systems and affect the system performance. The concentration change character of R407A/B/C/D was investigated and the concentration characteristic line was obtained. The performance change of refrigerant systems along the characteristic line was analyzed.

关 键 词：热工学 非共沸混合制冷剂 组分浓度 循环性能 三元混合工质 浓度变化 特征线 R134A R125 R32 

分 类 号：TB64[一般工业技术—制冷工程] TQ577.41[化学工程—精细化工]