Conference Paper

Proceedings of Building Simulation 2019: 16th Conference of IBPSA

Heat Pumps In HVAC Systems: Sensitivity Study Of The Simulated Performance Of A Reference Building At Different Latitudes In Europe

Viola Iaria, Angelo Spena, Carlo Mazzenga
University of Rome Tor Vergata, Italy

DOI: https://doi.org/10.26868/25222708.2019.211147
Abstract: In this paper a comparison between separated heating and cooling vs. reversible heat pumps-based configurations in the HVAC equipment of a significant non-residential building, is carried out over an entire reference year. Simulation is performed with hourly time-steps in two European cities (Berlin and Rome), taking into account latitude-related weather conditions, envelope properties, whole-building response when air conditioning is switched-on or switched-off. A sensitivity analysis is carried out considering different solutions for façades and fenestration properties, and lamps efficiency. The comparison reveals an higher sensitivity of the results to climate severity, windows shading, and inner lighting levels. The discussion of the results leads to assess the competitiveness of reversible heat pumps in terms of energy demand, as a function of the considered options.
Keywords: HVAC, heat pump, latitude, unsteady-state, sensitivity study
Pages: 2071 - 2078
Paper: