冷冻水流量和温度对基于混合工质的双温冷水机组性能影响

发布时间：2018-06-20 23:01

  本文选题：非共沸工质 + 变流量　； 参考：《制冷学报》2015年06期

【摘要】：为研究冷冻水流量与温度变化对基于大滑移温度非共沸工质双温冷水机组性能的影响规律,本文在大滑移温度非共沸工质的双温冷水机组实验台进行了多组实验研究。实验分别研究了非共沸工质R32/R236fa在不同质量组分比例(0.4∶0.6,0.5∶0.5,0.6∶0.4)下,冷冻水流量由0.25 m~3/h增大到0.45 m~3/h,以及高温冷冻水温度变化时,冷水机组性能的变化情况。实验结果表明,在冷却水进出口温度为32℃与37℃,高、低温冷冻水温度分别为7℃,16℃时,不同冷冻水流量下冷水机组的制冷效率(COP)最大为4.17,最小COP为3.27。此外,高温冷冻水温度变化对冷水机组COP存在明显影响。实验为大滑移温度的双温冷水机组的应用提出了数据基础。
[Abstract]:In order to study the effect of chilled water flow and temperature change on the performance of double-temperature chiller based on large slip temperature non-azeotropic refrigerant, a multi-group experiment was carried out on a double-temperature chiller with large slip temperature and non-azeotropic working fluid. The performance changes of chillers with non-azeotropic working fluid R32 / R236fa at different mass ratios of 0.4: 0.6: 0.5: 0.5: 0.6: 0.4) were studied. The chilled water flow rate increased from 0.25 mm3 / h to 0.45 mm3 / h, as well as the change of high temperature chilled water temperature. The experimental results show that when the inlet and outlet temperatures of cooling water are 32 鈩，

本文编号：2046015