THERMPUMP

Project description

Hot water storage tanks in residential buildings must be kept at a temperature of at least 60°C for hygiene reasons (legionella prevention). Heat losses must therefore be compensated for by a regular supply of heat. During these recharges, the permissible upper temperature limit of the building return flow is often exceeded, which means that heat ends up unused in the return flow. The storage loading heat pump to be developed in this R&D project is intended to cool the return without a compressor and make the heat usable at the higher temperature level. A natural working medium is to be used. The FH Westküste University of Applied Sciences is researching the process development and modeling, the selection of the working medium and the evaluation of the demonstrator.