Head Loss by Hazen Williams Formula Calculator

✖Length of Pipe describes the length of the pipe in which the liquid is flowing.ⓘ Length of Pipe [L_p]			+10% -10%
✖Average Velocity in Pipe Fluid Flow is the total volumetric flow rate divided by the cross-sectional area of the pipe.ⓘ Average Velocity in Pipe Fluid Flow [v_avg]			+10% -10%
✖Diameter of Pipe is the diameter of the pipe in which the liquid is flowing.ⓘ Diameter of Pipe [D_p]			+10% -10%
✖Coefficient of Roughness of Pipe is a dimensionless parameter used in environmental engineering, particularly in fluid mechanics and hydraulics.ⓘ Coefficient of Roughness of Pipe [C]			+10% -10%

✖Head Loss in Pipe is a measure of the reduction in the total head (sum of elevation head, velocity head and pressure head) of the fluid as it moves through a pipe.ⓘ Head Loss by Hazen Williams Formula [H_L']

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Hazen Williams Formula Formulas PDF PDF Image

Head Loss by Hazen Williams Formula Solution

STEP 0: Pre-Calculation Summary

Formula Used

Head Loss in Pipe = (6.78*Length of Pipe*Average Velocity in Pipe Fluid Flow^(1.85))/((Diameter of Pipe^(1.165))*Coefficient of Roughness of Pipe^(1.85))
H_L' = (6.78*L_p*v_avg^(1.85))/((D_p^(1.165))*C^(1.85))
This formula uses 5 Variables

Variables Used

Head Loss in Pipe - (Measured in Meter) - Head Loss in Pipe is a measure of the reduction in the total head (sum of elevation head, velocity head and pressure head) of the fluid as it moves through a pipe.
Length of Pipe - (Measured in Meter) - Length of Pipe describes the length of the pipe in which the liquid is flowing.
Average Velocity in Pipe Fluid Flow - (Measured in Meter per Second) - Average Velocity in Pipe Fluid Flow is the total volumetric flow rate divided by the cross-sectional area of the pipe.
Diameter of Pipe - (Measured in Meter) - Diameter of Pipe is the diameter of the pipe in which the liquid is flowing.
Coefficient of Roughness of Pipe - Coefficient of Roughness of Pipe is a dimensionless parameter used in environmental engineering, particularly in fluid mechanics and hydraulics.

STEP 1: Convert Input(s) to Base Unit

Length of Pipe: 2.5 Meter --> 2.5 Meter No Conversion Required
Average Velocity in Pipe Fluid Flow: 4.57 Meter per Second --> 4.57 Meter per Second No Conversion Required
Diameter of Pipe: 0.4 Meter --> 0.4 Meter No Conversion Required
Coefficient of Roughness of Pipe: 31.33 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

H_L' = (6.78*L_p*v_avg^(1.85))/((D_p^(1.165))*C^(1.85)) --> (6.78*2.5*4.57^(1.85))/((0.4^(1.165))*31.33^(1.85))

Evaluating ... ...

H_L' = 1.39987111455693

STEP 3: Convert Result to Output's Unit

1.39987111455693 Meter --> No Conversion Required

FINAL ANSWER

1.39987111455693 ≈ 1.399871 Meter <-- Head Loss in Pipe

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Civil » Environmental Engineering » Distribution of Water » Pipe Hydraulics » Hazen Williams Formula » Head Loss by Hazen Williams Formula

Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2100+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< Hazen Williams Formula Calculators

Head Loss by Hazen Williams Formula

LaTeX Go Head Loss in Pipe = (6.78*Length of Pipe*Average Velocity in Pipe Fluid Flow^(1.85))/((Diameter of Pipe^(1.165))*Coefficient of Roughness of Pipe^(1.85))

Velocity of Flow given Head Loss by Hazen Williams Formula

LaTeX Go Average Velocity in Pipe Fluid Flow = (Head Loss/((6.78*Length of Pipe)/((Diameter of Pipe^(1.165))*Coefficient of Roughness of Pipe^(1.85))))^(1/1.85)

Length of Pipe given Head Loss by Hazen Williams Formula

LaTeX Go Length of Pipe = Head Loss/((6.78*Average Velocity in Pipe Fluid Flow^(1.85))/((Diameter of Pipe^(1.165))*Coefficient of Roughness of Pipe^(1.85)))

Mean Velocity of Flow in Pipe by Hazen Williams Formula

LaTeX Go Average Velocity in Pipe Fluid Flow = 0.85*Coefficient of Roughness of Pipe*((Pipe Radius)^(0.63))*(Hydraulic Gradient)^(0.54)

Head Loss by Hazen Williams Formula Formula

LaTeX Go

What is Head Loss?

Head loss is a measure of the reduction in the total head (sum of elevation head, velocity head and pressure head) of the fluid as it moves through a fluid system. Head loss is unavoidable in real fluids.

How to Calculate Head Loss by Hazen Williams Formula?

Head Loss by Hazen Williams Formula calculator uses Head Loss in Pipe = (6.78*Length of Pipe*Average Velocity in Pipe Fluid Flow^(1.85))/((Diameter of Pipe^(1.165))*Coefficient of Roughness of Pipe^(1.85)) to calculate the Head Loss in Pipe, The Head Loss by Hazen Williams Formula is defined as the value of head loss calculated using the formula proposed by Hazen Williams. Head Loss in Pipe is denoted by H_L' symbol.

How to calculate Head Loss by Hazen Williams Formula using this online calculator? To use this online calculator for Head Loss by Hazen Williams Formula, enter Length of Pipe (L_p), Average Velocity in Pipe Fluid Flow (v_avg), Diameter of Pipe (D_p) & Coefficient of Roughness of Pipe (C) and hit the calculate button. Here is how the Head Loss by Hazen Williams Formula calculation can be explained with given input values -> 1.399871 = (6.78*2.5*4.57^(1.85))/((0.4^(1.165))*31.33^(1.85)).

FAQ

What is Head Loss by Hazen Williams Formula?

The Head Loss by Hazen Williams Formula is defined as the value of head loss calculated using the formula proposed by Hazen Williams and is represented as H_L' = (6.78*L_p*v_avg^(1.85))/((D_p^(1.165))*C^(1.85)) or Head Loss in Pipe = (6.78*Length of Pipe*Average Velocity in Pipe Fluid Flow^(1.85))/((Diameter of Pipe^(1.165))*Coefficient of Roughness of Pipe^(1.85)). Length of Pipe describes the length of the pipe in which the liquid is flowing, Average Velocity in Pipe Fluid Flow is the total volumetric flow rate divided by the cross-sectional area of the pipe, Diameter of Pipe is the diameter of the pipe in which the liquid is flowing & Coefficient of Roughness of Pipe is a dimensionless parameter used in environmental engineering, particularly in fluid mechanics and hydraulics.

How to calculate Head Loss by Hazen Williams Formula?

The Head Loss by Hazen Williams Formula is defined as the value of head loss calculated using the formula proposed by Hazen Williams is calculated using Head Loss in Pipe = (6.78*Length of Pipe*Average Velocity in Pipe Fluid Flow^(1.85))/((Diameter of Pipe^(1.165))*Coefficient of Roughness of Pipe^(1.85)). To calculate Head Loss by Hazen Williams Formula, you need Length of Pipe (L_p), Average Velocity in Pipe Fluid Flow (v_avg), Diameter of Pipe (D_p) & Coefficient of Roughness of Pipe (C). With our tool, you need to enter the respective value for Length of Pipe, Average Velocity in Pipe Fluid Flow, Diameter of Pipe & Coefficient of Roughness of Pipe and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Head Loss in Pipe?

In this formula, Head Loss in Pipe uses Length of Pipe, Average Velocity in Pipe Fluid Flow, Diameter of Pipe & Coefficient of Roughness of Pipe. We can use 1 other way(s) to calculate the same, which is/are as follows -

Head Loss in Pipe = (6.78*Length of Pipe*Average Velocity in Pipe Fluid Flow^(1.85))/(((2*Pipe Radius)^(1.165))*Coefficient of Roughness of Pipe^(1.85))

Home

FREE PDFs

🔍 Search