The Effect of Mechanical Ventilation on the Air Leakage Characteristic of a Two-Storey Detached House

Air change rates were measured in a two-storey detached house during the operation of various types of mechanical fresh-air ventilation systems. Two balanced systems (supply equals exhaust) and two exhaust-only systems were studied. Expressions were developed relating the house air change rate under winter conditions to the forced ventilation rate and the infiltration rate due to wind and temperature differences.Les d\ue9bits de renouvellement d'air ont \ue9t\ue9 mesur\ue9s dans une maison individuelle \ue0 deux niveaux alors que divers types d' installations de ventilation m\ue9canique utilisant l'air frais \ue9taient en marche. Deux installations \ue0 flux \ue9 quilibr\ue9 (d\ue9bit d'entr\ue9e = d\ue9bit de sortie) et deux installations d'extraction ont fait l'objet de l'\ue9tude. Les formules mises au point dans le cadre de cette \ue9tude \ue9 tablissent une corr\ue9lation entre le d\ue9bit de renouvellement d'air en hiver et le taux de ventilation m\ue9canique, le taux d'infiltration d'air due au vent et les \ue9carts de temp\ue9rature.Peer reviewed: NoNRC publication: Ye