looking for air velocity criteria for frp duct/pipe used 4 foul air?
looking for air velocity criteria for frp duct/pipe used 4 foul air?
(OP)
I'm currently working on the design of odor control facilities for a wastewater treatment plant. We plan to use FRP pipe for convey foul air to odor control scrubbers.
I've seen guidelines that limit the air velocities in pipes/duct to less than 2500 fpm or 3000 fpm to reduce the problem of noise.
Does anyone know where these criteria orginate and how they were established?? I'd like to find the background.
Thanks,
ppalencia@lacsd.org
I've seen guidelines that limit the air velocities in pipes/duct to less than 2500 fpm or 3000 fpm to reduce the problem of noise.
Does anyone know where these criteria orginate and how they were established?? I'd like to find the background.
Thanks,
ppalencia@lacsd.org





RE: looking for air velocity criteria for frp duct/pipe used 4 foul air?
RE: looking for air velocity criteria for frp duct/pipe used 4 foul air?
There have been instances where I have used 4000 to 5000 FPM in ductwork as long as the pressure drop is accounted for in your blower specification. I have found that over 5000 FPM velocity causes outrageous pressure drop.
In conclusion, use ASHRAE for some guidelines on calculating pressure drop, but look at your restrictions on duct size and go from there.
RE: looking for air velocity criteria for frp duct/pipe used 4 foul air?
RE: looking for air velocity criteria for frp duct/pipe used 4 foul air?
Thanks