Technical and economical analysis of heat obtaining method of ground-source heat pump under different geological conditions

Taking a ground-source heat pump system in Baoding City as an object, analyses in detail the design scheme, resource conditions, primary investment and operation cost of vertical pipe heat exchanger buried in bore and underground water pumping/recharging wells. The results show that the primary investment of the underground water pumping/recharging well is lower 1/2 than that of the vertical pipe buried in bore, but its total operation cost is far higher than that of the vertical pipe buried in bore.