Calculate pressure drops using Darcy-Weisbach, Hazen-Williams, and minor loss methods
Pressure Loss
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kPa
Reynolds Number
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Friction Factor
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Pressure Loss
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kPa
Velocity
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m/s
Total Minor Loss
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kPa
Velocity Head
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m
The most accurate method for calculating pressure loss due to friction in pipes for all flow regimes.
An empirical formula primarily used for water flow in pipes under turbulent flow conditions.
Pressure losses due to fittings, valves, and other components in the piping system.
ΔP = f × (L/D) × (ρv²/2) where ΔP is pressure drop, f is friction factor, L is pipe length, D is diameter, ρ is density, and v is velocity.
ΔP = 10.67 × L × Q1.852 / (C1.852 × D4.87) where Q is flow rate and C is the Hazen-Williams roughness coefficient. Limited to water at moderate temperatures.
ΔP = K × (ρv²/2) where K is the loss coefficient specific to each fitting type. These losses are typically expressed in terms of equivalent pipe lengths.