Assessing the Impact of Air-Source Heat Pumps in a Residential Building’s Retrofit Process

The importance of mitigating energy intensity in the building sector is widely recognized by most stakeholders, and different strategies are proposed for minimizing fossil fuel dependency. This paper presents a complex study assessing the possibility of integrating an air-source heat pump (ASHP) into the retrofitting process of a typical Romanian residential building. Mathematical simulations were conducted to estimate the energy reduction potential of a complex renewable-energy-based HVAC system. The results showed that a more than 50% increase in energy efficiency could be obtained by using the right insulation materials, and the building’s fossil fuel dependency could be curbed by 75% by integrating the proposed renewable energy systems.

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