Impeller power Calculator

✖Specific weight of fluid in pump is the weight of fluid per unit volume.ⓘ Specific weight of fluid in pump [w]			+10% -10%
✖Actual discharge at centrifugal pump outlet is the actual amount of the liquid outflow from the outlet of the centrifugal pump.ⓘ Actual discharge at centrifugal pump outlet [Q]			+10% -10%
✖The Velocity of Whirl at Outlet is the tangential component of absolute velocity at the blade outlet.ⓘ Velocity of Whirl at Outlet [V_w2]			+10% -10%
✖The Tangential Velocity of Impeller at Outlet is the velocity of the impeller at the fluid outlet.ⓘ Tangential Velocity of Impeller at Outlet [u₂]			+10% -10%

✖The Impeller Power of Centrifugal Pump is the power developed at the impeller in the centrifugal pump.ⓘ Impeller power [IP]

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Formula

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Impeller power

Formula

`"IP" = ("w"*"Q"*"V"_{"w2"}*"u"_{"2"})/(1000*"[g]")`

Example

`"17.02982kW"=("9.81kN/m³"*"0.056m³/s"*"16m/s"*"19m/s")/(1000*"[g]")`

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Impeller power Solution

STEP 0: Pre-Calculation Summary

Formula Used

Impeller Power of Centrifugal Pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)/(1000*[g])
IP = (w*Q*V_w2*u₂)/(1000*[g])
This formula uses 1 Constants, 5 Variables

Constants Used

[g] - Gravitational acceleration on Earth Value Taken As 9.80665

Variables Used

Impeller Power of Centrifugal Pump - (Measured in Kilowatt) - The Impeller Power of Centrifugal Pump is the power developed at the impeller in the centrifugal pump.
Specific weight of fluid in pump - (Measured in Newton per Cubic Meter) - Specific weight of fluid in pump is the weight of fluid per unit volume.
Actual discharge at centrifugal pump outlet - (Measured in Cubic Meter per Second) - Actual discharge at centrifugal pump outlet is the actual amount of the liquid outflow from the outlet of the centrifugal pump.
Velocity of Whirl at Outlet - (Measured in Meter per Second) - The Velocity of Whirl at Outlet is the tangential component of absolute velocity at the blade outlet.
Tangential Velocity of Impeller at Outlet - (Measured in Meter per Second) - The Tangential Velocity of Impeller at Outlet is the velocity of the impeller at the fluid outlet.

STEP 1: Convert Input(s) to Base Unit

Specific weight of fluid in pump: 9.81 Kilonewton per Cubic Meter --> 9810 Newton per Cubic Meter (Check conversion here)
Actual discharge at centrifugal pump outlet: 0.056 Cubic Meter per Second --> 0.056 Cubic Meter per Second No Conversion Required
Velocity of Whirl at Outlet: 16 Meter per Second --> 16 Meter per Second No Conversion Required
Tangential Velocity of Impeller at Outlet: 19 Meter per Second --> 19 Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

IP = (w*Q*V_w2*u₂)/(1000*[g]) --> (9810*0.056*16*19)/(1000*[g])

Evaluating ... ...

IP = 17.0298154823513

STEP 3: Convert Result to Output's Unit

17029.8154823513 Watt -->17.0298154823513 Kilowatt (Check conversion here)

FINAL ANSWER

17.0298154823513 ≈ 17.02982 Kilowatt <-- Impeller Power of Centrifugal Pump

(Calculation completed in 00.004 seconds)

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Created by Sagar S Kulkarni

Dayananda Sagar College of Engineering (DSCE), Bengaluru

Sagar S Kulkarni has created this Calculator and 200+ more calculators!

Verified by Vaibhav Malani

National Institute of Technology (NIT), Tiruchirapalli

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< 10+ Impeller Parameters Calculators

Impeller power

Go Impeller Power of Centrifugal Pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)/(1000*[g])

Outlet Diameter of Impeller using Speed Ratio, Manometric Head and Impeller Speed

Go Diameter of centrifugal pump impeller at outlet = (84.6*Speed ratio centrifugal pump*sqrt(Manometric Head of Centrifugal Pump))/Angular velocity of centrifugal pump

Tangential velocity given speed ratio

Go Tangential Velocity of Impeller at Outlet = Speed ratio centrifugal pump*sqrt(2*[g]*Manometric Head of Centrifugal Pump)

Least diameter of impeller when outlet diameter is twice of inlet diameter

Go Diameter of centrifugal pump impeller at outlet = (97.68*sqrt(Manometric Head of Centrifugal Pump))/Angular velocity of centrifugal pump

Tangential velocity of impeller at outlet

Go Tangential Velocity of Impeller at Outlet = pi*Diameter of centrifugal pump impeller at outlet*Angular velocity of centrifugal pump/60

Tangential Velocity of Impeller at Inlet

Go Tangential Velocity of Impeller at Inlet = pi*Diameter of centrifugal pump impeller at inlet*Angular velocity of centrifugal pump/60

Tangential Velocity of Impeller at Outlet using Angular Velocity

Go Tangential Velocity of Impeller at Outlet = Angular velocity of centrifugal pump*Radius of Impeller at Outlet

Impeller radius at outlet given outlet tangential velocity

Go Radius of Impeller at Outlet = Tangential Velocity of Impeller at Outlet/Angular velocity of centrifugal pump

Tangential Velocity of Impeller at Inlet using Angular Velocity

Go Tangential Velocity of Impeller at Inlet = Angular velocity of centrifugal pump*Radius of Impeller at Inlet

Impeller radius at inlet given inlet tangential velocity

Go Radius of Impeller at Inlet = Tangential Velocity of Impeller at Inlet/Angular velocity of centrifugal pump

Impeller power Formula

What is centrifugal pump power?

The work performed by a centrifugal pump is a function of the total head and the weight of the liquid pumped in a given time period.

How to Calculate Impeller power?

Impeller power calculator uses Impeller Power of Centrifugal Pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)/(1000*[g]) to calculate the Impeller Power of Centrifugal Pump, The Impeller power formula is defined as the ratio of product of specific weight, discharge, whirl velocity and tangential velocity at outlet to the product of 1000 times acceleration due to gravity. Impeller Power of Centrifugal Pump is denoted by IP symbol.

How to calculate Impeller power using this online calculator? To use this online calculator for Impeller power, enter Specific weight of fluid in pump (w), Actual discharge at centrifugal pump outlet (Q), Velocity of Whirl at Outlet (V_w2) & Tangential Velocity of Impeller at Outlet (u₂) and hit the calculate button. Here is how the Impeller power calculation can be explained with given input values -> 0.01703 = (9810*0.056*16*19)/(1000*[g]).

FAQ

What is Impeller power?

The Impeller power formula is defined as the ratio of product of specific weight, discharge, whirl velocity and tangential velocity at outlet to the product of 1000 times acceleration due to gravity and is represented as IP = (w*Q*V_w2*u₂)/(1000*[g]) or Impeller Power of Centrifugal Pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)/(1000*[g]). Specific weight of fluid in pump is the weight of fluid per unit volume, Actual discharge at centrifugal pump outlet is the actual amount of the liquid outflow from the outlet of the centrifugal pump, The Velocity of Whirl at Outlet is the tangential component of absolute velocity at the blade outlet & The Tangential Velocity of Impeller at Outlet is the velocity of the impeller at the fluid outlet.

How to calculate Impeller power?

The Impeller power formula is defined as the ratio of product of specific weight, discharge, whirl velocity and tangential velocity at outlet to the product of 1000 times acceleration due to gravity is calculated using Impeller Power of Centrifugal Pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)/(1000*[g]). To calculate Impeller power, you need Specific weight of fluid in pump (w), Actual discharge at centrifugal pump outlet (Q), Velocity of Whirl at Outlet (V_w2) & Tangential Velocity of Impeller at Outlet (u₂). With our tool, you need to enter the respective value for Specific weight of fluid in pump, Actual discharge at centrifugal pump outlet, Velocity of Whirl at Outlet & Tangential Velocity of Impeller at Outlet and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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