- Cooling coil GPM = Total capacity (Btu/hr) / 500 / Delta T
- Electric Heat (kW) = ((CFM x 1.085 x Detla T) / 3.413) / 1000
- Mixed Air Temperature = ((RA cfm/SA cfm) x RA Temp) + ((OA cfm/SA cfm) x OA Temp)
- Room air changes (per hour) = (Room volume x Number of required changes) / 60
- Btuh = cfm x 1.085 x Delta T
- Watts = btuh/3.413
- kW = watts/1000
- 2.31 psi per 1ft. head
No comments:
Post a Comment