Influence of opening degree of electronic expansion valve on performance of R32 water source heat pump

Hu Pengrong; Tao Leren; He Jun; Yu Zhongyang

doi:10.3969/j.issn.0253-4339.2020.03.111

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Influence of opening degree of electronic expansion valve on performance of R32 water source heat pump

更新时间：2024-07-18

- Influence of opening degree of electronic expansion valve on performance of R32 water source heat pump
- Journal of Refrigeration Vol. 41, Issue 3, (2020)
- 作者机构：
  
  上海理工大学制冷与低温工程研究所
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2020.03.111
  CLC：
- Published：01 January 2020
- 稿件说明：
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Hu Pengrong, Tao Leren, He Jun, et al. Influence of opening degree of electronic expansion valve on performance of R32 water source heat pump[J]. Journal of refrigeration, 2020, 41(3).
DOI：

Hu Pengrong, Tao Leren, He Jun, et al. Influence of opening degree of electronic expansion valve on performance of R32 water source heat pump[J]. Journal of refrigeration, 2020, 41(3). DOI： 10.3969/j.issn.0253-4339.2020.03.111.

摘要

以使用R32为制冷剂的变制冷剂流量（VRF，variable refrigerant flow）转子式水源热泵系统为研究对象，通过改变电子膨胀阀开度（从6%到60%），对在不同压缩机频率（从40 Hz到60 Hz）下热泵系统性能的变化进行了实验分析。结果表明：在压缩机吸气口由过热状态向带液状态转变的过程中，电子膨胀阀开度的调节范围呈先减小后增大的变化趋势；随着电子膨胀阀开度的增加，系统的压比是持续下降的；在压缩机少量吸气带液（0.98

Abstract

The performance of a variable refrigerant flow type of rotor water source heat pump was experimentally investigated at different compressor frequencies (from 40 to 60 Hz) andopenings of the electronic expansion valve (from 6% to 60%). As the suction of the compressor changed from an overheated state to a gas-liquid state

the adjustment range of the opening of the electronic expansion valve decreased first and then increased. As the opening of the expansion valve increased

the compressionratio of the system continuously decreased.Furthermore

when the suctiongas contained a small amount of liquid (0.98

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