R404A压缩冷凝机组变环境温度实验研究  

Experimental Study on Performance of Compression Condensing Unit with Refrigerant R404A under Varied Environment Temperature Conditions

作　　者：张进贤[1] 黄虎[1] 王敬欢[1] 张忠斌[1] 汪庆 

机构地区：[1]南京师范大学能源与机械学院,江苏南京210042 [2]泰州市南风冷链有限公司,江苏泰州225300

出　　处：《建筑科学》2011年第8期42-44,共3页Building Science

摘　　要：本文在蒸发温度不变,而环境温度变化的情况下对压缩冷凝机组进行了性能测试,分析了外界环境温度变化对压缩冷凝机组系统COP、输入功率、压比等性能参数的影响。由实验结果可知:蒸发温度保持不变,环境温度每上升1℃,COP平均下降2.6%,即环境温度对机组运行效率的影响比较大,对压缩冷凝机组进行优化可有效提高机组的性能。该实验为进一步提高压缩冷凝机组的性能提供了实验参考依据。In this paper,the performance experiments for compression condensing unit under variable environment temperature conditions had been conducted with the constant evaporation temperature. The effects of environment temperature and evaporating temperature on the parameters of COP, power input and compression ratio were analyzed. The experimental results indicated that with the constant evaporating temperature,when the environment temperature was increased by 1℃ , COP would be increased by 2. 6% ,and therefore the operating performance could be improved by optimization of the unit. Based on the discussion, important experimental reference for further improvement was provided.

关 键 词：R404A 压缩冷凝机组 性能 试验 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]