ABSTRACT
Frank-Dietrich Heidt In cold and tem perate climates, ventilation and infiltration are a major part of the heating load of high-performance housing. The heat required, HV (Wh), due to any air change rate n (h-1) is:
HV = n • V • (pc)air • 24 h/d • DD [10.1]
where:
• V = volume of exchangeable indoor air in m2; • (pc)air = volumetric specific heat of air ( = 0.34 Wh/m3K); and • DD = degree days in Kd (1 d = 24 h).
