Ducting Pressure Drop Calculator
Ducting Pressure Drop Calculator

Provided for your use by HRSGdesign.com

The following formulas and coefficients are from the American Petroleum Institute Practice API RP533.

Duct Piece Type: Shape:
Inlet Diameter, ft: Outlet Diameter, ft:
Inlet Width, ft: Inlet Height, ft:
Outlet Width, ft: Outlet Height, ft:
Radius Of Turn, ft: Incl'd Or Turn Angle, Deg:
Roughness Factor: Hght Of Col Or Lgth Of Run, ft:
No. Of Miter Pieces:
Gas Flow, lb/ft2: Viscosity Of Gas, cp:
Density Of Flue Gas, lb/ft3: Density Of Ambient Air, lb/ft3:
Velocity, ft/sec: Velocity Head, inH2O:
Coefficient: Pressure Drop, inH2O:

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