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).
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.
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
关键词
水源热泵转子压缩机电子膨胀阀系统性能
Keywords
water source heat pumprotor compressorelectronic expansion valvesystem performance