Performance experiments for air-water dual-source composite heat pump system
XU Jun-fang1,2, ZHAO Yao-hua1, WANG Jie-teng2, ZHAO Hui-gang2, LI Nan2
1.College of Architecture and Civil Engineering, Beijing University of Technology; 2.Beijing Science and Technology Institute of Housing and Urban-Rural Development
Abstract：
This paper used environmental chamber to simulate outdoor environmental conditions and analyzed system performance coefficient COP of air-water dual source compound heat pump system under three different operation modes, including single water source heating, single air source heating and air-water dual source heating, at different ambient temperature and humidity, water temperature and water flow of low temperature water tank. The test result showed that single water source heating mode COP became larger when the water temperature of low temperature water tank increased; air temperature variation of single air source heating had big influence on system COP; valid temperature difference between air intake temperature of evaporator and water inlet temperature is a key factor influencing simultaneous heat supply at air side and water side under air-water dual source heating mode.
