Decarbonization of Heating and Cooling Systems of Buildings Located Nearby Surface Water Sources: Case Study

Adriana Tokar (), Daniel Muntean (), Danut Tokar and Daniel Bisorca
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Adriana Tokar: Faculty of Civil Engineering, University Politehnica Timisoara, 300223 Timișoara, Romania
Daniel Muntean: Faculty of Civil Engineering, University Politehnica Timisoara, 300223 Timișoara, Romania
Danut Tokar: Faculty of Civil Engineering, University Politehnica Timisoara, 300223 Timișoara, Romania
Daniel Bisorca: Faculty of Civil Engineering, University Politehnica Timisoara, 300223 Timișoara, Romania

Energies, 2024, vol. 17, issue 15, 1-20

Abstract: The study was carried out to evaluate theoretically and in laboratory conditions the capacity of a hybrid heating and cooling system that sustainably uses thermal energy extracted from surface waters in order to decarbonize buildings located near water sources. The novelty of the research consists in the realization of two experimental systems, one for the rapid evaluation of the performance of the water–water heat pump heating system and one for the evaluation of the operating behavior of a cooling system with fan coil units. Starting with the heating and cooling demand, and the climatic and hydrological local characteristics, a hybrid system model for the heating and cooling of the analyzed building was established and implemented. The forecasted energy consumption and CO 2 emissions for the operation of the new equipment were compared with the historical values of the old systems with which the building was equipped (thermal energy supply from the district heating and cooling system with an air conditioning unit). Also, the results were extrapolated for forecasting the energy potential of the surface waters. The study highlights a percentage reduction in annual energy consumption of 67.71% and CO 2 emissions of 80.13% through the implementation of the hybrid system.

Keywords: decarbonization; surface water thermal potential; water–water heat pump; free cooling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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