Application and suggestion for surface water source heat pumps in Chongqing area

On the basis of the temperatures and water quality of the Yangtze River, the Jialing River, the Wujiang River and the typical enclosed lakes during the test operation of the Three Gorges Reservoir, analyses the feasibility of application of surface water source heat pump to Chongqing area. Based on the analysis and comparison, puts forward the principle of selection for water treatment techniques and water source heat pump unit in surface water source heat pump system. The result from an analysis of measured energy efficiency ratio for typical projects shows that the surface water heat pumps save energy more than conventional air conditioning mode. Aimed at water resource, engineering application and actual technology, presents some suggestions for developing surface water source heat pumps.