If the building in question five has an infiltration of 50 C

If the building in question five has an infiltration of 50 CFM, what is the ACH? Is this adequate ventilation?

Solution

ACH can be calculated by the formula ACH= (CFM x 60)/ building volume

Therefore, ACH = 50 x 60/ (30 x 30 x 18) = 0.185

Infiltration rate = room volume x temperature diff. x air changes per hour (ACH) x 0.18