Supply Air & Fresh Air Quantities
Supply air quantity (m3/h) = air change rate x room volume (m3)
Supply air quantity (m3/h) = 8 x 960(m3)
Supply air quantity (m3/h) = 7680 (m3/h)
Supply air quantity (m3/s) = 7680(m3/h) / 3600 = 2.13 (m3/s)
Supply air mass flow rate (kg/s) = Supply air quantity (m3/s) / Specific Volume (m3/kg)
Supply air mass flow rate (kg/s) = 2.13 (m3/s) / 0.87 (m3/kg)
Supply air mass flow rate (kg/s) = 2.45 kg/s
The fresh air flow rate (kg/s) = 2.45 kg/s x 50% = 1.23 kg/s