Fan static pressure
Fan static pressure
(OP)
how can i calculate the total pressure drop if i know the fan static pressure and external static pressure?
fan static pressure = 2877 Pa Suc = -533 Dis = 784
external static pressure = 1063 Pa suc = -312 Dis = 401
fan static pressure = 2877 Pa Suc = -533 Dis = 784
external static pressure = 1063 Pa suc = -312 Dis = 401





RE: Fan static pressure
RE: Fan static pressure
RE: Fan static pressure
RE: Fan static pressure
No problem for ESP as this is already given, 1063 Pa.
What confusing is the given fan static pressure, 2877 Pa. What type is this pressure, TSP or ISP. So where did you get this pressure? If this obtained from fan manufacturer catalog, then this is the pressure capacity of fan that will cover both the ISP and ESP of the air distribution system.
I hope my answer is acceptable. :)
HVAC Zone
RE: Fan static pressure
Total Static Pressure = Internal Static Pressure (filters, coils, etc.) + External Static Pressure (ductwork, air terminals etc.)
Total Pressure = Total Static Pressure + Velocity Pressure
Typically, fans are selected based on an external static pressure with a corresponding CFM. From there, the manufacturer will add in their internal static pressure losses, and then be able to calculate a total pressure and select the correct fan for the application.
RE: Fan static pressure