Discuss on using Yangtse River water as heat and cold sources of water source heat pumps

Wang Mingguo★, Fu Xiangzhao, Wang Yong, Liu Yong, Chen Jinhua and Zang Zixuan

Abstract　Measures the water temperature of Yangtse River in Chongqing reach. When only considering the effects of heat transfer temperature difference between refrigerant and cooling water and that between refrigerant and the river water, the coefficient of performance of water source heat pump can achieve to over 6.4 and the thermal perfect efficiency can achieve to over 0.76.Therefore, the use of Yangtse River water as the heat and cold sources of water source heat pumps will have great potential of energy efficiency.