Preliminary Results of the Temperature Distribution Measurements Around the Vertical Ground Heat Exchangers Tubes

Abstract

Abstract The paper presents the preliminary results of the temperature distribution to a depth of 100 m in the two selected vertical geothermal wells during operation of the heat pump and ground temperature measurement without vertical ground probes work. Research was carried out from the third decade of December to the end of February. The wells are the lower energy source for two heat pumps brine/water type with heating power of 117.2 kW each and 95.9 kW cooling capacity installed in the building of The Faculty of Civil and Environmental Engineering, Bialystok University of Technology in Bialystok. With heat pumps work 52 vertical ground probes to a depth of 100 m each. The article presents the way of making probes equipped with 30 digital temperature sensors to record the temperature distribution in the vertical probes and in the ground and it shows the way of making the test bench using the groundwater wells with vertical probes. The average coefficient of performance COP of the heat pump HP in the months of January and February has been designated.