化工进展2019，Vol.38Issue(3)：1182-1189,8.DOI:10.16085/j.issn.1000-6613.2018-1185
混合制冷剂R134a/R1234yf(R513A)与R134a热力学性能对比及实验
Thermodynamic performance comparison and experimental study of mixed refrigerant R134a/R1234yf (R513A) and R134a
摘要
Abstract
R513 A (R134 a/R1234 yf, 56/44％ weight) is a new kind of environment friendly alternative blend refrigerant based on R1234 yf and R134 a with low GWP, which is non-flammable. The new refrigerant R513 A was selected as a substitute for R134 a in a domestic refrigerator, and the experiment was carried out according to standard BS EN ISO 15502-2005. The performance of R513 A and R134 a in refrigerators was studied through three kinds of aspects, namely, pull down time, energy consumption, and freezing capacity. The experimental results showed that the cooling time of R513 A under the optimal charge was 21％ lower than that of R134 a. In the 24 h test, the 24 h energy consumption of R513 A is 3.5％lower than that of R134 a, and the percentage running time ratio of R513 A is lower than that of R134 a.During the freezing test, the time taken for the M-packages to reach the same temperature, under the same condition, R513 A saved 43.2 min compared to that of R134 a. In addition, the exhaust temperature of R513 A was lower than that of R134 a, and the other parameters were close to R134 a. From the experimental results, it can be concluded that R513 A can directly replace R134 a without any changes to the original refrigerator system.关键词
R134a/R513A/热力学性质/替代性能Key words
R134a/R513A/thermodynamic properties/alternative performance分类
通用工业技术引用本文复制引用
杨梦,张华,秦延斌,孟照峰..混合制冷剂R134a/R1234yf(R513A)与R134a热力学性能对比及实验[J].化工进展,2019,38(3):1182-1189,8.基金项目
国家自然科学基金(5117612) （5117612）
