Analysis of the potential for the development and utilization of shallow geothermal energy in Qiannan Prefecture
HUANG Yancai
LU Xiongxuan
Abstract：Based on the existing thermal physical parameters of rocks and soils,the shallow geothermal energy reserves and the area available for heating and cooling within the Qiannan Prefecture region are estimated,and the suitable areas for development and utilization are qualitatively evaluated.The results show that the total heat capacity of geothermal energy beneath 200 m on the surface of Qiannan Prefecture is 7.75×1015 kJ/℃.The total heat exchange power in summer is approximately 2.450 billion kW,and in winter it is approximately 2.780 billion kW.The area available for heating in winter is approximately 55.600 billion m2,and the area available for cooling in summer is approximately 35.000 billion m2.Among them,the urban basin of Huishui and the Dushan basaltic karst basin are typical areas for the development and utilization of ground heat source heat pump systems and groundwater heat source heat pump systems,and two characteristic development and utilization models can be established,further promoting the regionalized development and utilization of shallow geothermal energy in the karst area of Southwest China,and helping to achieve the regional'double carbon'goals.
Keywords：shallow geothermal energyground source heat pump systemenergy development and utilization'double carbon'goalsheat exchange power
Publication Date：2026-02-25
Online Publishing Date：2026-03-31(First online date of this platform, not the publication date of the document)
Pages：4( 45-48 )