Application Research on Buried Ground-source Heat Pump Technology in Karst Area of Guizhou

Abstract:

Buried heat pump technology is a new energy utilization technology for heating and cooling with shallow geothermal energy collected below the surface within 200m in depth, but which is restricted in the application in carbonate rock distribution area of Guizhou mainly because of the difficulties in vertical heat exchange hole building in Karst formaton and the high cost. The paper introduces the successful experience of utilization of shallow geothermal energy by a combined heat exchange system of vertical buried type and foundation pile spiral coil type in carbonate formation with Karst general to medium development, which can be reference for the application and promotion of buried heat pump technology in Karst areas of Guizhou.