We have an exhaust duct penetrating a fire partition wall equipped with a combination fire/smoke damper. The problem is that the equipment we are exhausting generates smoke which triggers the smoke damper everytime it's on. We can't reroute the duct to miss the fire wall so we are pretty much...
2007 California Mechanical Code Section 604-Installation of Ducts, requires a clearance of 18" for all ducts installed under floor for access. We have a modular building with only a maximum under floor height of 19". This gives us only 1" of duct space to work with. Does anyone know of any...
I'm trying to calculate the airflow in a compressed air pipe. I know the pressure reading from the gauge and the pipe diameter. Is there an equation I can use to find the CFM with what I have. I know I can use the equation Airflow = Velocity x Area but I don't know what the velocity is. Is...
