Duct fitting pressure drop
Duct fitting pressure drop
(OP)
The traditional method of calculation of duct fitting (bends, elbows, etc.) is based on equivalent length calculation.
There is also another method wherein we use the velocity pressure and multiply the same with a coefficient (k).
(h/4005) square x k.
Needless to say, both produces different results, the second one producing a higher static pressure drop through the duct.
Which one do we follow ?
There is also another method wherein we use the velocity pressure and multiply the same with a coefficient (k).
(h/4005) square x k.
Needless to say, both produces different results, the second one producing a higher static pressure drop through the duct.
Which one do we follow ?
HVAC68





RE: Duct fitting pressure drop
Velocity effects are very important in air systms.