Abstract

The Thermally Affected Zone (TAZ) created in an aquifer by pumping out and re-injecting groundwater at different temperatures in an open-loop geothermal heat pump system is modelled in this work. The location of the TAZ can determine where to install the standing wells so that the pumped groundwater temperature is not affected and the performance of the system is not compromised. Results on this work set the distance between wells in at least 15m, and shows that summer and winter TAZ do not interfere with each other. Finally, the TAZ dissipates almost completely after a year.