PRODUCTION OF DOMESTIC HOT WATER WITH SOLAR THERMAL COLLECTORS IN NORTH-EUROPEAN APARTMENT BUILDINGS

The production of domestic hot water with solar thermal collectors in apartment buildings has been studied. The annual energy output of the solar collector was calculated with the PolySun simulation program using the Meteotest Estonian climate file. Weather data were measured in a solar radiation measurement station situated at Tallinn University of Technology. The results of the measurements of the solar thermal energy system of the tested apartment building have been presented. The results of the analysis confirm that solar thermal collectors are one of the best possibilities of reducing the consumption of conventional energy resources in apartment buildings.