
you are calculating (e.g., radius elbow, mitered bend, reducer)? What is your airflow rate (CFM) and duct size ?
Proper sizing prevents noisy systems and ensures adequate air delivery to rooms.
The volume of air (CFM or L/s) passing through the fitting.
The diameter (round) or height and width (rectangular) of the duct.
Helps ensure that the total pressure does not exceed the capacity of the air handling unit (AHU).
The speed of the air (FPM or m/s), which directly affects friction.
They calculate the pressure loss in inches of water gauge ("wg) or Pascals (Pa) for various round and rectangular fittings.
By calculating both straight duct friction loss and fitting loss, they provide the total static pressure needed for proper duct design. Key Data Used in Calculations
you are calculating (e.g., radius elbow, mitered bend, reducer)? What is your airflow rate (CFM) and duct size ?
Proper sizing prevents noisy systems and ensures adequate air delivery to rooms.
The volume of air (CFM or L/s) passing through the fitting.
The diameter (round) or height and width (rectangular) of the duct.
Helps ensure that the total pressure does not exceed the capacity of the air handling unit (AHU).
The speed of the air (FPM or m/s), which directly affects friction.
They calculate the pressure loss in inches of water gauge ("wg) or Pascals (Pa) for various round and rectangular fittings.
By calculating both straight duct friction loss and fitting loss, they provide the total static pressure needed for proper duct design. Key Data Used in Calculations