Experimental Measurement and Energy Evaluation of the Geothermal Water Energy Utilization in a Thermal Swimming Pool

Abstract

This work focuses on the experimental measurement of the temperature and flow of cold, geothermal, pool and waste pool water of a thermal swimming pool in southern Slovakia. The measured quantities are necessary for the energy evaluation of geothermal water energy utilization. It is clear from experience that the geothermal energy utilization rate often does not even reach 40%. The remaining energy is considered waste, and in the form of waste pool water with too high temperature, it is most often discharged into surface streams. The results of the study showed that by applying appropriate measures to recover heat from waste pool water, it is possible to increase the energy utilization rate of thermal water from 40% to 85%, which is the ideal energy utilization rate according to energy point of view. At the end of the article, methods will be presented, thanks to which it would be possible to reduce the temperature of waste pool water to the value required by law and at the same time increase the rate of thermal water energy use.