Li Yuchun, Cai Zhihong, He Yongfeng. Study on Performance Characteristic of Heat Pump with Economizer[J]. Journal of refrigeration, 2011, 32(6).
DOI:
Li Yuchun, Cai Zhihong, He Yongfeng. Study on Performance Characteristic of Heat Pump with Economizer[J]. Journal of refrigeration, 2011, 32(6). DOI: 10.3969/j.issn.0253-4339.2011.06.040.
Study on Performance Characteristic of Heat Pump with Economizer
A heat pump with economizer was studied under the following experimental conditions: inlet air dry-bulb temperature was -15℃
RH was 60%
while inlet water was 47.5℃. Data was obtained by change opening of electronic expansion valve in the injection pipe line. Result shows that there is an optimum opening for the system. The characteristic of optimum opening was analyzed and concluded as follows: lowest temperature of discharge and suctionand lowest temperature differential between electronic expansion valve’s outlet in injection pipe line and the injection point of compressor.