Research on heat transfer characteristics and borehole field layout of ground heat exchangers to alleviate thermal accumulation with groundwater advection

The heat transfer performance of ground exchanger is significant to the source pump. soil thermal parameters, groundwater advection and different borehole field layout are important factors affect exchanger. Therefore, influence velocity, physical parameters on temperature distribution evolution around has been analyzed studied with unbalanced seasonal load based moving finite line model advection. results show that accumulation easy occur as time develops when taken into consideration. No matter what type geological condition employed, a reasonable can effectively avoid problems under keeping same amount boreholes without changing original area. dispersed along center concentrated in downstream relatively reduce accumulation.