How to calculate the stair case pressurized duct sizing and fan pressure?

أفضل جواب: Absorptive or dissipative silencers use sound absorbing materials to attenuate sound waves. Dissipative s ... الإطلاع على المزيد

أفضل جواب: <p>you can use the smacna handbook you can contact me at mail to have it </p> <p>i'll ... الإطلاع على المزيد

أفضل جواب: As the question itself mentions a simple method, previously many design engineers use a simple square foo ... الإطلاع على المزيد

أفضل جواب: Its a simple calculation .....brief calculation:   400CFM= !TR( Tonne of Refrigeration) Duct Size of 20CM ... الإطلاع على المزيد