The effect analysis of interaction of physical property parameters of heat storage medium on the heat storage efficiency of borehole group based on response surface method
The effect analysis of interaction of physical property parameters of heat storage medium on the heat storage efficiency of borehole group based on response surface method
In order to study the influence of the physical properties parameters of geotechnical soil and soil on the thermal storage efficiency of the borehole group,the numerical simulation method was used to obtain the thermal conductivity,specific heat,density and thermal conductivity of the backfill material of the soil.The specific data of the heat input to the geotechnical system,the heat recovered from the geotech-nical soil and the heat recovery efficiency were analyzed by the response surface method.The results show that the thermal conductivity of soil and backfill material has a significant impact on the thermal storage efficiency of the drilling group.Selecting a suitable geological place and improving the thermal conductivity of the backfill material,the range of it was controlled at 2～3 W/(m·K),which would improve the heat storage efficiency of the system.
关键词
跨季节埋管储热/数值模拟/响应面法/储热效率
Key words
Borehole thermal energy storage/Numerical simulation/Response surface methodology/Energy storage efficiency
维普
万方数据