A two-story building of volume of 540 m3 has an effective air leakage area of 510 cm2 . The outdoor and indoor design temperatures for winter conditions are í10°C and 20°C respectively. The average...

A two-story building of volume of 540 m3 has an effective air leakage area of 510 cm2 . The outdoor and indoor design temperatures for winter conditions are í10°C and 20°C respectively. The average design wind speed is 7msí1 . The house is sheltered by other houses across the street. Estimate (i) the air infiltration rate, and (ii) the air exchange rate per hour