Design of hybrid ground-source heat pump system for a hotel building in Ningbo

Analyses the key design elements of grourd heat exchangers. Taking account of the local geological condition, the advantages of the ground-source heat pump system and the condition that cooling load is higher than heating load in this area the building located, designs a hybrid ground-source heat pump system（HGSHPS）. The heating load is provided by the ground heat exchanger, and the cooling load is complemented by the auxiliary cooling device. The hot water system involves the unit of closed water storage tank plus ground-source heat pump. The ground heat exchangers of hot water system and air conditioning system are alternately arranged, which gains ideal complementary in summer, keeping the heat balance of ground and improving the operating efficiency.