Static Pressure in air blowers
Static Pressure in air blowers
(OP)
Hi all, it could be a simple question for some, why blowers are specified by static pressure not total pressure or dynamic pressure? I am new in this area!
Thanks!
Thanks!





RE: Static Pressure in air blowers
Total pressure = velocity pressure + static pressure
RE: Static Pressure in air blowers
You can go here to read all about it: ht
RE: Static Pressure in air blowers
I will apreciate your comment on that
Thanks
RE: Static Pressure in air blowers
Velocity pressure at the fan will affect the fan motor size (ie system efficiency), hence fans should be selected/specified with low velocity discharges to decrease absorbed power and increase fan efficiency.
RE: Static Pressure in air blowers
Hope that this helps.
RE: Static Pressure in air blowers
RE: Static Pressure in air blowers
RE: Static Pressure in air blowers
Thanks,
RE: Static Pressure in air blowers
RE: Static Pressure in air blowers
RE: Static Pressure in air blowers
Thanks for asking a very good question!Fan selection should be done based on total pressure only.
Fan static pressure is equal to fan total pressure only when fan outlet area is equal to the discharge duct area.This is not the case always and selection should be based on total pressure.Please read ASHRAE (Systems and Application ) chapter on Fans and your doubts will be cleared.
Cheers
RE: Static Pressure in air blowers
RE: Static Pressure in air blowers
Total pressure performance is what you are after in a fan.