R32和R123非共沸混合制冷剂最佳组分比的理论研究  

Theoretical Study of the Optimal Proportion of Non-azeotropic Refrigerant Mixtures of R32 and R123

作　　者：上官继峰 马国远[1] 许树学[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124

出　　处：《制冷与空调（四川）》2015年第3期330-336,共7页Refrigeration and Air Conditioning

基　　金：国家自然科学基金资助项目(51376010)

摘　　要：根据混合工质优势互补的原理，提出R32与R123的二元非共沸混合制冷剂。基于Matlab计算平台，并调用NIST开发的Refprop物性参数编制了混合工质计算程序，对5种不同工况的单级循环性能进行了计算。结果显示，在工况2和4下，R123中添加R32质量分数5-7%，系统制冷COP相比纯R123提高38.08%-52.94%，系统的压力提高显著；在工况5下，当R32中添加R123质量分数10%时，系统的COP相比纯R32可提高6.4%，排气温度降低3.2℃，混合GWP值相比R32降低8.22%。Based on the principle of complementary advantages of mixed refrigerants, this paper proposed binary zeotropic refrigerant mixtures of R32 and R123. Matlab is used for theoretical circular calculation of the mixture at different proportion by calling property parameters from Refprop developed by NIST. By comparasion of performance parameters under 5 different conditions in the single compression system, the result indicates that, after adding 5-7 percent R32 to pure R123 under the second and fourth conditions, the coefficient of performance（COP） of the mixed refrigerant can increase 38.08%-52.94%, significantly increasing the system pressure. After adding 10 percent R123 to R32 under the 5th condition, theCOP of the mixed refrigerant can increase 6.4%, the discharge temperature decreases 3.2℃, TheGWP can be reduced by 8.22%.

关 键 词：R32 R123 非共沸 组分比 

分 类 号：TB61[一般工业技术—制冷工程]