Experimental studies of a variable capacity direct-expansion solar-assisted heat pump water heater in autumn and winter conditions - Kong, Xiangqiang; Sun, Penglong; Li, Ying; Jiang, Kailin; Dong, Shandong (Solar energy, 2018)
Keywords: Alternative energy sources; Autumn; Capacitors; Direct expansion; Electric power; Evaporation; Evaporators; Experiments; Extreme weather; Gas expanders; Heat exchangers; Heat pumps; Meteorology; Microchannels; Performance evaluation; Pressure; Pumps; Solar assisted heat pump; Solar collectors; Solar energy; Temperature effects; Thermal performance; Water heaters; Water temperature; Winter; Solar assisted heat pump; Direct expansion; Experiments; Thermal performance