For those needing to move beyond simple online calculators, Applied Flow Technology (AFT) offers a utility suite with eight calculators. It handles compressible pipe sizing, two-phase flow maps, and orifice sizing. This is a step up for professional engineers dealing with complex thermodynamics.
Let’s walk through a typical use case. Assume you are designing a compressed air line delivering 1,000 SCFM of air at 110 PSIG over 2,000 feet of 4-inch Schedule 40 steel pipe. sf pressure drop online-calculator
Let’s perform a simple calculation for air flow in a 100-foot, 2-inch pipe at 500 SCFM. The manual process using the (AGA) looks like this: For those needing to move beyond simple online
During system design, many variables interplay to determine the final pressure drop. SF Pressure Drop accounts for all these critical factors, helping engineers identify which ones need adjustments for an optimized design: Let’s walk through a typical use case
ΔP=f⋅LD⋅ρ⋅v22cap delta cap P equals f center dot the fraction with numerator cap L and denominator cap D end-fraction center dot the fraction with numerator rho center dot v squared and denominator 2 end-fraction = Pressure drop (Pa, psi) = Darcy friction factor (dimensionless) = Length of the pipe (m, ft) = Internal diameter of the pipe (m, ft) = Fluid density ( kg/m3kg/m cubed lb/ft3lb/ft cubed = Flow velocity (m/s, ft/s) 2. Finding the Friction Factor (
Helps you verify if the fluid is moving too fast (causing erosion/noise) or too slow (causing sedimentation).
