Investigation on applicability of surface water source heat pump systems to the area of Yangtze River upper reach

Collects and analyses the measured data of water temperature and quality of different surface water bodies in the reaches. By measurement during operation of a surface water source heat pump system in the reaches, obtains that the coefficient of performance of the heat pump and the overall system is 4.32 and 3.02 respectively in summer. The data indicate that the surface water source heat pump system applied to the reaches has a good energy saving effect.