Effect of geotechnical thermal conductivity on zonal operation of cluster geothermal heat exchangers
As an important part of ground source heat pump,the heat transfer efficiency of buried tube heat exchanger can directly affect the operation efficiency of the whole heat pump unit.For most areas,the long-term operation of local source heat pump(LSHP)results in the accumulation of cold/heat in the soil due to the unbalanced load in winter and summer.In order to alleviate this effect,zoning operation is usually adopted,and different soil conditions will also affect the zoning operation.Therefore,starting from the thermal conductivity of soil,this paper uses C language to program,and studies the influence of different thermal conductivity on the zoning operation of cluster ground heat exchangers.The results show that the zoning operation can effectively alleviate the heat accumulation in the central area of buried pipes,and the more remarkable the zoning operation effect is in the areas with smaller thermal conductivity of rock and soil.
万方数据
维普
