Heat balance analysis and countermeasure of groundwater heat pump system of Zhengding in Hebei
1.School of Earth Science and Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2.School of Mapping and Exploration Engineering, Jilin Jianzhu University, Changchun, Jilin 130000, China; 3.3rd Hydrogeology and Engineering Group of Hebei Bureau of Geology and Mineral Resources, Hengshui, Hebei 053000, China
Abstract：To accurately simulate and predict the change of heat balance and avoid heat transfixion and heat accumulation during groundwater heat pump operation in Zhengding, Hebei province, based on the present application status, a three dimensional numerical model between groundwater seepage and thermal transport was established to combine the demonstration project hydrogeology with marine geological exploration. Combined with the design scheme and operation situation， the heat balance development tendency of groundwater heat pump system under different conditions was forecasted and analyzed. The results show that there are heat transfixion and cold accumulation according to the proposed design scheme. When the shallow geothermal energy exploitation causes cold accumulation, exchanging pumping well and recharge well after one year can effectively remit heat transfixion and cold accumulation without changing the cooling load and the distance between pumping and recharge well.
2015, Vol. 36 
