Experimental Study of HFO-1234ze and HFC-32 Mixture on Heat Pump Water Heater

Chen Hongqun; Wang Fang; Ou Junyan; Wang Tao; Yu Dawei; Wang Ying

doi:10.3969/j.issn.0253-4339.2016.06.020

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Experimental Study of HFO-1234ze and HFC-32 Mixture on Heat Pump Water Heater

更新时间：2024-07-18

- Experimental Study of HFO-1234ze and HFC-32 Mixture on Heat Pump Water Heater
- Journal of Refrigeration Vol. 37, Issue 6, (2016)
- 作者机构：
  
  上海理工大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2016.06.020
  CLC：
- Published：2016
- 稿件说明：
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Chen Hongqun, Wang Fang, Ou Junyan, et al. Experimental Study of HFO-1234ze and HFC-32 Mixture on Heat Pump Water Heater[J]. Journal of refrigeration, 2016, 37(6).
DOI：

Chen Hongqun, Wang Fang, Ou Junyan, et al. Experimental Study of HFO-1234ze and HFC-32 Mixture on Heat Pump Water Heater[J]. Journal of refrigeration, 2016, 37(6). DOI： 10.3969/j.issn.0253-4339.2016.06.020.

摘要

本文选用了NIST发行的REFPRO9.0 制冷剂计算程序及KW2模型参数对混合制冷剂HFO-1234ze与HFC-32在不同配比下的热物性进行了模拟计算，并依据热泵热水器测试的标准工况，计算了不同配比下混合制冷剂的理论循环特性，分析得出了HFO-1234ze/HFC-32较为合适的配比。通过一次加热（即热式）热泵热水器实验台，对多种环境工况及不同进水温度进行性能测试，分别对R410A和混合制冷剂（HFO-1234ze与HFC-32配比0.3/0.7）在实验系统中的压缩机功率、系统性能系数、压缩机吸、排气压力和温度、冷凝器出水温度等参数进行了对比分析。结果表明：混合制冷剂（HFO-1234ze与HFC-32配比0.3/0.7）的压缩机功率和排气压力都低于R410A系统，而COP高于R410A系统，在标准工况下，分别为4.03和3.56，且在高于标准工况的环境温度情况下，混合制冷剂系统COP下降速率低于R410A系统，有利于热水器机组的安全稳定运行，在替代R410A系统方面具有可行性。

Abstract

Based on REFPRO 9.0 and KW2 model parameters

the thermophysical properties of mixing refrigerant HFO-1234ze/HFC-32 were calculated in this paper

and the cycle performance of mixed refrigerant in different ratios was figured out according to the heat pump water heater test standard. The results showed that the optimal mixture ratio is 0.3/0.7. With this ratio

the performance of heat pump water heater in different operating conditions were conducted and compared with R410A. The results indicate that the mixed refrigerant’s compressor power consumption and discharge pressure are lower than R410A system

which is conducive to the safe and stable operation of the water heater; under the standard condition

the COP is 4.03 which is higher than R410A’s 3.6; meanwhile the decline rate of COP is lower than R410A when the temperature is higher than the standard condition. Therefore

the mixed refrigerant is feasible to replace R410A.

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