Open AccessExergy Analysis of Building Heating with a Groundwater Source Heat Pump
Author(s) -
Ružica Todorović,
Milan Gojak,
Miloš Banjac,
Nedžad R. Rudonja
Publication year - 2020
Language(s) - English
Resource type - Conference proceedings
DOI - 10.24094/kghk.020.51.1.23
Subject(s) - heat pump , exergy , groundwater , coefficient of performance , environmental science , work (physics) , thermodynamics , process engineering , engineering , mechanical engineering , geotechnical engineering , physics , heat exchanger
The paper presents an exergy analysis of the groundwater heat pump operation for theneeds of building heat-ing. The analysis was conducted on a monthly basis, given the dependence of exergy on the changing state of the envi-ronment. Changes inheating coefficient and exergy efficiencyof thegeothermal heat pumpheating systemdepending onthe influentialparameters wereanalyzed: groundwater temperature fromthe pumping well, changes in the ground-water temperature on the heat pump evaporatorand water temperature inthe heating system.The obtained results provide insight into thermodynamic indicators of heat pump operation depending on the groundwater temperature and the operation mode of the building heating system. The conducted analysis provides guidelines for the design and opti-mization of heat pumps that work with groundwater as a heat source.