Head Loss Calculator

✖Friction Factor or Moody chart is the plot of the relative roughness (e/D) of a pipe against Reynold's number.ⓘ Friction Factor [f]			+10% -10%
✖Length is the measurement or extent of something from end to end.ⓘ Length [l]			+10% -10%
✖Average Velocity is defined as the mean of all different velocities.ⓘ Average Velocity [V_avg]			+10% -10%
✖Diameter of Pipe is the length of the longest chord of the pipe in which the liquid is flowing.ⓘ Diameter of Pipe [d_pipe]			+10% -10%
✖Earth’s Geocentric Gravitational Constant is a measure of its gravitational field strength, vital for orbital mechanics calculations.ⓘ Earth’s Geocentric Gravitational Constant [μ_e]			+10% -10%

✖Head Loss due to Friction occurs due to the effect of the fluid's viscosity near the surface of the pipe or duct.ⓘ Head Loss [h_f]

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Formula

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Head Loss

Formula

`"h"_{"f"} = ("f"*"l"*("V"_{"avg"}^2))/(2*"d"_{"pipe"}*"μ"_{"e"})`

Example

`"14111.86m"=("1.6"*"0.25m"*(("75m/s")^2))/(2*"0.02m"*"3.98601")`

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Head Loss Solution

STEP 0: Pre-Calculation Summary

Formula Used

Head Loss due to Friction = (Friction Factor*Length*(Average Velocity^2))/(2*Diameter of Pipe*Earth’s Geocentric Gravitational Constant)
h_f = (f*l*(V_avg^2))/(2*d_pipe*μ_e)
This formula uses 6 Variables

Variables Used

Head Loss due to Friction - (Measured in Meter) - Head Loss due to Friction occurs due to the effect of the fluid's viscosity near the surface of the pipe or duct.
Friction Factor - Friction Factor or Moody chart is the plot of the relative roughness (e/D) of a pipe against Reynold's number.
Length - (Measured in Meter) - Length is the measurement or extent of something from end to end.
Average Velocity - (Measured in Meter per Second) - Average Velocity is defined as the mean of all different velocities.
Diameter of Pipe - (Measured in Meter) - Diameter of Pipe is the length of the longest chord of the pipe in which the liquid is flowing.
Earth’s Geocentric Gravitational Constant - Earth’s Geocentric Gravitational Constant is a measure of its gravitational field strength, vital for orbital mechanics calculations.

STEP 1: Convert Input(s) to Base Unit

Friction Factor: 1.6 --> No Conversion Required
Length: 0.25 Meter --> 0.25 Meter No Conversion Required
Average Velocity: 75 Meter per Second --> 75 Meter per Second No Conversion Required
Diameter of Pipe: 0.02 Meter --> 0.02 Meter No Conversion Required
Earth’s Geocentric Gravitational Constant: 3.98601 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_f = (f*l*(V_avg^2))/(2*d_pipe*μ_e) --> (1.6*0.25*(75^2))/(2*0.02*3.98601)

Evaluating ... ...

h_f = 14111.8562171194

STEP 3: Convert Result to Output's Unit

14111.8562171194 Meter --> No Conversion Required

FINAL ANSWER

14111.8562171194 ≈ 14111.86 Meter <-- Head Loss due to Friction

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electronics and Instrumentation » Measurement of Physical Parameters » Fundamental Parameters » Head Loss

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Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

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< 25 Fundamental Parameters Calculators

Length of Pipe

Go Length = Diameter of Pipe*(2*Head Loss due to Friction*Earth’s Geocentric Gravitational Constant)/(Friction Factor*(Average Velocity^2))

Head Loss

Go Head Loss due to Friction = (Friction Factor*Length*(Average Velocity^2))/(2*Diameter of Pipe*Earth’s Geocentric Gravitational Constant)

Height of plates

Go Height = Difference in Liquid Level*(Capacitance with No Liquid*Magnetic Permeability)/(Capacitance-Capacitance with No Liquid)

Thickness of Spring

Go Thickness of Spring = (Flat Spiral Spring Controlling Torque*(12*Length)/(Youngs Modulus*Width of Spring)^-1/3)

Flat Spiral Spring Controlling Torque

Go Flat Spiral Spring Controlling Torque = (Youngs Modulus*Width of Spring*(Thickness of Spring^3))/(12*Length)

Youngs Modulus of Flat Spring

Go Youngs Modulus = Flat Spiral Spring Controlling Torque*(12*Length)/(Width of Spring*(Thickness of Spring^3))

Width of Spring

Go Width of Spring = (Flat Spiral Spring Controlling Torque*(12*Length)/(Youngs Modulus*Thickness of Spring^3))

Length of Spring

Go Length = Youngs Modulus*(Width of Spring*(Thickness of Spring^3))/Flat Spiral Spring Controlling Torque*12

Distance between boundaries

Go Distance = (Coefficient of Velocity*Area of Cross-Section*Speed of Body)/Resisting Motion in fluid

Boundary area being moved

Go Area of Cross-Section = Resisting Motion in fluid*Distance/(Coefficient of Velocity*Speed of Body)

Torque of moving Coil

Go Torque on Coil = Flux Density*Current*Number of Turns in Coil*Area of Cross-Section*0.001

Weight of Air

Go Weight of Air = (Immersed Depth*Specific Weight*Area of Cross-Section)+Weight of Material

Heat Transfer Coefficient

Go Heat Transfer Coefficient = (Specific Heat*Mass)/(Area of Cross-Section*Time Constant)

Area of thermal contact

Go Area of Cross-Section = (Specific Heat*Mass)/(Heat Transfer Coefficient*Time Constant)

Thermal time constant

Go Time Constant = (Specific Heat*Mass)/(Area of Cross-Section*Heat Transfer Coefficient)

Head Loss Due to Fitting

Go Head Loss due to Friction = (Eddy Loss Coefficient*Average Velocity)/(2*Earth’s Geocentric Gravitational Constant)

Maximum Fiber Stress in Flat Spring

Go Maximum Fiber Stress = (6*Flat Spiral Spring Controlling Torque)/(Width of Spring*Thickness of Spring^2)

Controlling Torque

Go Flat Spiral Spring Controlling Torque = Deflection of Pointer/Angle of Deflection of Galvanometer

Length of weighing platform

Go Length = (Weight of Material*Speed of Body)/Flow Rate

Angular Speed of Former

Go Angular Speed of Former = Linear Velocity of Former/(Breadth Of Former/2)

Angular Speed of Disc

Go Angular Speed of Disc = Damping Constant/Damping Torque

Average Velocity of System

Go Average Velocity = Flow Rate/Area of Cross-Section

Couple

Go Couple Moment = Force*Dynamic Viscosity of a Fluid

Weight on Force Sensor

Go Weight on Force Sensor = Weight of Material-Force

Weight of Displacer

Go Weight of Material = Weight on Force Sensor+Force

Head Loss Formula

Head Loss due to Friction = (Friction Factor*Length*(Average Velocity^2))/(2*Diameter of Pipe*Earth’s Geocentric Gravitational Constant)
h_f = (f*l*(V_avg^2))/(2*d_pipe*μ_e)

Why is it called head loss?

The pressure head is due to the static pressure, the internal molecular motion of a fluid that exerts a force on its container. Resistance head (or friction head or Head Loss) is due to the frictional forces acting against a fluid's motion by the container.

How to Calculate Head Loss?

Head Loss calculator uses Head Loss due to Friction = (Friction Factor*Length*(Average Velocity^2))/(2*Diameter of Pipe*Earth’s Geocentric Gravitational Constant) to calculate the Head Loss due to Friction, The Head Loss formula is defined as 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 due to Friction is denoted by h_f symbol.

How to calculate Head Loss using this online calculator? To use this online calculator for Head Loss, enter Friction Factor (f), Length (l), Average Velocity (V_avg), Diameter of Pipe (d_pipe) & Earth’s Geocentric Gravitational Constant (μ_e) and hit the calculate button. Here is how the Head Loss calculation can be explained with given input values -> 104830.9 = (1.6*0.25*(75^2))/(2*0.02*3.98601).

FAQ

What is Head Loss?

The Head Loss formula is defined as 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 and is represented as h_f = (f*l*(V_avg^2))/(2*d_pipe*μ_e) or Head Loss due to Friction = (Friction Factor*Length*(Average Velocity^2))/(2*Diameter of Pipe*Earth’s Geocentric Gravitational Constant). Friction Factor or Moody chart is the plot of the relative roughness (e/D) of a pipe against Reynold's number, Length is the measurement or extent of something from end to end, Average Velocity is defined as the mean of all different velocities, Diameter of Pipe is the length of the longest chord of the pipe in which the liquid is flowing & Earth’s Geocentric Gravitational Constant is a measure of its gravitational field strength, vital for orbital mechanics calculations.

How to calculate Head Loss?

The Head Loss formula is defined as 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 is calculated using Head Loss due to Friction = (Friction Factor*Length*(Average Velocity^2))/(2*Diameter of Pipe*Earth’s Geocentric Gravitational Constant). To calculate Head Loss, you need Friction Factor (f), Length (l), Average Velocity (V_avg), Diameter of Pipe (d_pipe) & Earth’s Geocentric Gravitational Constant (μ_e). With our tool, you need to enter the respective value for Friction Factor, Length, Average Velocity, Diameter of Pipe & Earth’s Geocentric Gravitational Constant 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 due to Friction?

In this formula, Head Loss due to Friction uses Friction Factor, Length, Average Velocity, Diameter of Pipe & Earth’s Geocentric Gravitational Constant. We can use 1 other way(s) to calculate the same, which is/are as follows -

Head Loss due to Friction = (Eddy Loss Coefficient*Average Velocity)/(2*Earth’s Geocentric Gravitational Constant)

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