Zhang Lei, Wang Fang, Wang Ke, et al. Research on HFO-1234ze Replacing R417A and R22 Used in HPWH[J]. Journal of refrigeration, 2014, 35(3). DOI: 10.3969/j.issn.0253-4339.2014.03.102.
HFO-1234ze,R22 and R417A were compared with each other from aspect of thermal properties
ODP
GWP
toxicity
flammability and so on. Theoretical feasibility of HFO-1234ze used in heat pump water heater was analyzed through theoretical calculation. A experiment is carried out on the air resource heat pump water heater using HFO-1234ze
R22
and R417a under standard conditions. Suction and discharge pressure
suction and discharge temperature
compressor input power
thermal heating capacity
and coefficient of performance had been analyzed. The result shows that HFO-1234ze has well applicability using in heat pump water heater. This research provides the references for the refrigerant selection of the heat pump water heater.