Volumetric Efficiency of Pump given Discharge and Leakage of Liquid Solution

STEP 0: Pre-Calculation Summary
Formula Used
Volumetric efficiency of centrifugal pump = Actual discharge at centrifugal pump outlet/(Actual discharge at centrifugal pump outlet+Leakage of Liquid from Impeller)
ηvol = Q/(Q+q)
This formula uses 3 Variables
Variables Used
Volumetric efficiency of centrifugal pump - Volumetric efficiency of centrifugal pump is the ratio of the quantity of the liquid discharged per second from pump to quantity passing per second through impeller.
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.
Leakage of Liquid from Impeller - (Measured in Cubic Meter per Second) - Leakage of Liquid from Impeller is the amount of the fluid or liquid leaking from the impeller per second.
STEP 1: Convert Input(s) to Base Unit
Actual discharge at centrifugal pump outlet: 0.056 Cubic Meter per Second --> 0.056 Cubic Meter per Second No Conversion Required
Leakage of Liquid from Impeller: 0.0029 Cubic Meter per Second --> 0.0029 Cubic Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
ηvol = Q/(Q+q) --> 0.056/(0.056+0.0029)
Evaluating ... ...
ηvol = 0.950764006791171
STEP 3: Convert Result to Output's Unit
0.950764006791171 --> No Conversion Required
FINAL ANSWER
0.950764006791171 0.950764 <-- Volumetric efficiency of centrifugal pump
(Calculation completed in 00.004 seconds)

Credits

Created by Sagar S Kulkarni
Dayananda Sagar College of Engineering (DSCE), Bengaluru
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Institute of Aeronautical Engineering (IARE), Hyderabad
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15 Pump Parameters Calculators

Minimum speed for starting centrifugal pump
Go Minimum Speed for Starting Centrifugal Pump = (120*Manometric Efficiency of Centrifugal Pump*Velocity of Whirl at Outlet*Diameter of centrifugal pump impeller at outlet)/(pi*(Diameter of centrifugal pump impeller at outlet^2-Diameter of centrifugal pump impeller at inlet^2))*((2*pi)/60)
Work done per second when Flow at Inlet is not Radial
Go Work Done by Pump per Second = (Weight of liquid in pump/[g])*((Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)-(Velocity of Whirl at Inlet*Tangential Velocity of Impeller at Inlet))
Work done per second per unit weight of liquid if flow at inlet is not radial
Go Work Done by Centrifugal Pump = ((Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)-(Velocity of Whirl at Inlet*Tangential Velocity of Impeller at Inlet))/[g]
Angular Speed given Specific Speed of Pump
Go Angular velocity of centrifugal pump = (Specific Speed of Centrifugal Pump*(Manometric Head of Centrifugal Pump^(3/4)))/(sqrt(Actual discharge at centrifugal pump outlet))
Specific Speed of Pump
Go Specific Speed of Centrifugal Pump = (Angular velocity of centrifugal pump*sqrt(Actual discharge at centrifugal pump outlet))/(Manometric Head of Centrifugal Pump^(3/4))
Suction specific speed
Go Suction Specific Speed = (Angular velocity of centrifugal pump*sqrt(Actual discharge at centrifugal pump outlet))/((Net Positive Suction Head of Centrifugal Pump)^(3/4))
Head of Pump given Specific Speed
Go Manometric Head of Centrifugal Pump = (Angular velocity of centrifugal pump*sqrt(Actual discharge at centrifugal pump outlet)/Specific Speed of Centrifugal Pump)^(4/3)
Volumetric Efficiency of Pump given Discharge and Leakage of Liquid
Go Volumetric efficiency of centrifugal pump = Actual discharge at centrifugal pump outlet/(Actual discharge at centrifugal pump outlet+Leakage of Liquid from Impeller)
Discharge of pump given specific speed
Go Actual discharge at centrifugal pump outlet = (Specific Speed of Centrifugal Pump*(Manometric Head of Centrifugal Pump^(3/4))/Angular velocity of centrifugal pump)^2
Work done per second for Centrifugal pumps
Go Work Done by Pump per Second = (Weight of liquid in pump/[g])*Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet
Output power
Go Output Power of Centrifugal Pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Manometric Head of Centrifugal Pump)/1000
Static power
Go Static power of centrifugal pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Static Head of Centrifugal Pump)/1000
Work done per second per unit weight of liquid
Go Work Done by Centrifugal Pump = (Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet)/[g]
Work done per second given Torque
Go Work Done by Pump per Second = Torque at Centrifugal Pump Outlet*Angular velocity of centrifugal pump
Angular Velocity of Centrifugal Pump
Go Angular Velocity = (2*pi*Speed of Impeller in RPM)/60

Volumetric Efficiency of Pump given Discharge and Leakage of Liquid Formula

Volumetric efficiency of centrifugal pump = Actual discharge at centrifugal pump outlet/(Actual discharge at centrifugal pump outlet+Leakage of Liquid from Impeller)
ηvol = Q/(Q+q)

What is volumetric efficiency?

The ratio of quantity of liquid discharged per second from the pump to quantity passing per second through the impeller is known as volumetric efficiency.

How to Calculate Volumetric Efficiency of Pump given Discharge and Leakage of Liquid?

Volumetric Efficiency of Pump given Discharge and Leakage of Liquid calculator uses Volumetric efficiency of centrifugal pump = Actual discharge at centrifugal pump outlet/(Actual discharge at centrifugal pump outlet+Leakage of Liquid from Impeller) to calculate the Volumetric efficiency of centrifugal pump, Volumetric Efficiency of Pump given Discharge and Leakage of Liquid is defined as the ratio of discharge to the sum of discharge and leakage of liquid. Volumetric efficiency of centrifugal pump is denoted by ηvol symbol.

How to calculate Volumetric Efficiency of Pump given Discharge and Leakage of Liquid using this online calculator? To use this online calculator for Volumetric Efficiency of Pump given Discharge and Leakage of Liquid, enter Actual discharge at centrifugal pump outlet (Q) & Leakage of Liquid from Impeller (q) and hit the calculate button. Here is how the Volumetric Efficiency of Pump given Discharge and Leakage of Liquid calculation can be explained with given input values -> 0.950764 = 0.056/(0.056+0.0029).

FAQ

What is Volumetric Efficiency of Pump given Discharge and Leakage of Liquid?
Volumetric Efficiency of Pump given Discharge and Leakage of Liquid is defined as the ratio of discharge to the sum of discharge and leakage of liquid and is represented as ηvol = Q/(Q+q) or Volumetric efficiency of centrifugal pump = Actual discharge at centrifugal pump outlet/(Actual discharge at centrifugal pump outlet+Leakage of Liquid from Impeller). Actual discharge at centrifugal pump outlet is the actual amount of the liquid outflow from the outlet of the centrifugal pump & Leakage of Liquid from Impeller is the amount of the fluid or liquid leaking from the impeller per second.
How to calculate Volumetric Efficiency of Pump given Discharge and Leakage of Liquid?
Volumetric Efficiency of Pump given Discharge and Leakage of Liquid is defined as the ratio of discharge to the sum of discharge and leakage of liquid is calculated using Volumetric efficiency of centrifugal pump = Actual discharge at centrifugal pump outlet/(Actual discharge at centrifugal pump outlet+Leakage of Liquid from Impeller). To calculate Volumetric Efficiency of Pump given Discharge and Leakage of Liquid, you need Actual discharge at centrifugal pump outlet (Q) & Leakage of Liquid from Impeller (q). With our tool, you need to enter the respective value for Actual discharge at centrifugal pump outlet & Leakage of Liquid from Impeller 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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