Comparative analysis of the energy impact of air infiltration for different ventilation systems

This work presents simulations results exploring the influence of the building air-tightness on the energy consumption of buildings for different hypothesis on the type of ventilation system. It shows that the energy impact is different depending on the ventilation system, and that buildings ventilated with a supply-extract ventilation system, even those without heat exchanger, are much more sensitive to air infiltrations than buildings ventilated with an extract ventilation system.