制冷技术Issue(1)：29-35,7.DOI:10.3969/j.issn.2095-4468.2015.01.108
碳氢化合物及其混合物应用于小型商业冷柜的实验研究
Experimental Study on Hydrocarbons and Their Mixtures Used in Small Commercial Cabinet Freezers
王玄坤 1钱文波 2晏刚2
作者信息
- 1. 北京市丰台区房屋经营管理中心供暖设备服务所，北京 100069
- 2. 西安交通大学能源与动力工程学院，陕西西安 710049
- 折叠
摘要
Abstract
To solve the environment issue of the refrigerant applied in low temperature cabinet freezers, the study was performed on the alternative refrigerants of R404A, such as hydrocarbons. A FORTRAN program for refrigeration cycle was proposed to obtain the thermodynamic cycle performance of R404A, R290, R290/DME (wt%: 80/20) and R290/R134A (wt%: 50/50) under low-temperature conditions. The optimal refrigerant charge amount and cooling rate of a SRL-CD2075HA commercial cabinet freezer were experimentally investigated The results show that the COP of R290, R290/DME (wt%: 80/20) and R290/R134A (wt%: 50/50) are better than that of R404A. Moreover, the power consumption is also lower. In addition, the optimal charge amount of R404A, R290, R290/DME (wt%: 80/20) and R290/R134A (wt%: 50/50) are about 600 g, 250 g, 235 g and 440 g, respectively. R290 and its binary refrigerant blends can achieve the same cooling effect of R404A under the same conditions.关键词
R290/循环性能/充灌量/低温工况Key words
R290/Cycle performance/Refrigerant charge/Low temperature conditions引用本文复制引用
王玄坤,钱文波,晏刚..碳氢化合物及其混合物应用于小型商业冷柜的实验研究[J].制冷技术,2015,(1):29-35,7.
