Leakage of Liquid given Volumetric Efficiency and Discharge Calculator

✖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%
✖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.ⓘ Volumetric efficiency of centrifugal pump [η_vol]			+10% -10%

✖Leakage of Liquid from Impeller is the amount of the fluid or liquid leaking from the impeller per second.ⓘ Leakage of Liquid given Volumetric Efficiency and Discharge [q]

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Formula

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Leakage of Liquid given Volumetric Efficiency and Discharge

Formula

`"q" = ("Q"/"η"_{"vol"})-"Q"`

Example

`"0.002947m³/s"=("0.056m³/s"/"0.95")-"0.056m³/s"`

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Leakage of Liquid given Volumetric Efficiency and Discharge Solution

STEP 0: Pre-Calculation Summary

Formula Used

Leakage of Liquid from Impeller = (Actual discharge at centrifugal pump outlet/Volumetric efficiency of centrifugal pump)-Actual discharge at centrifugal pump outlet
q = (Q/η_vol)-Q
This formula uses 3 Variables

Variables Used

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.
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.
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.

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
Volumetric efficiency of centrifugal pump: 0.95 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q = (Q/η_vol)-Q --> (0.056/0.95)-0.056

Evaluating ... ...

q = 0.00294736842105264

STEP 3: Convert Result to Output's Unit

0.00294736842105264 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

0.00294736842105264 ≈ 0.002947 Cubic Meter per Second <-- Leakage of Liquid from Impeller

(Calculation completed in 00.004 seconds)

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Home » Physics » Fluid Mechanics » Fluid Machinery » Centrifugal Pumps » Geometric and Flow Parameters » Leakage of Liquid given Volumetric Efficiency and Discharge

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< 19 Geometric and Flow Parameters Calculators

Mechanical efficiency given Specific Weight of Liquid

Go Mechanical efficiency of centrifugal pump = (Specific weight of fluid in pump*(Actual discharge at centrifugal pump outlet+Leakage of Liquid from Impeller)*(Velocity of Whirl at Outlet*Tangential Velocity of Impeller at Outlet/[g]))/Input power to centrifugal pump

Overall efficiency

Go Overall efficiency of centrifugal pump = (Specific weight of fluid in pump*Actual discharge at centrifugal pump outlet*Manometric Head of Centrifugal Pump)/Input power to centrifugal pump

Flow velocity at outlet given volume of liquid

Go Flow velocity at outlet of centrifugal pump = Actual discharge at centrifugal pump outlet/(pi*Diameter of centrifugal pump impeller at outlet*Width of Impeller at Outlet)

Volume of liquid at outlet

Go Actual discharge at centrifugal pump outlet = pi*Diameter of centrifugal pump impeller at outlet*Width of Impeller at Outlet*Flow velocity at outlet of centrifugal pump

Flow velocity at inlet given volume of liquid

Go Flow velocity at inlet of centrifugal pump = Actual discharge at centrifugal pump outlet/(pi*Diameter of centrifugal pump impeller at inlet*Width of Impeller at Inlet)

Volume of liquid at inlet

Go Actual discharge at centrifugal pump outlet = pi*Diameter of centrifugal pump impeller at inlet*Width of Impeller at Inlet*Flow velocity at inlet of centrifugal pump

Thoma's cavitation factor

Go Thoma's Cavitation Factor = (Atmospheric Pressure Head for Pump-Suction head of centrifugal pump-Vapour Pressure Head)/Manometric Head of Centrifugal Pump

Leakage of Liquid given Volumetric Efficiency and Discharge

Go Leakage of Liquid from Impeller = (Actual discharge at centrifugal pump outlet/Volumetric efficiency of centrifugal pump)-Actual discharge at centrifugal pump outlet

Torque at outlet

Go Torque at Centrifugal Pump Outlet = (Weight of liquid in pump/[g])*Velocity of Whirl at Outlet*Radius of Impeller at Outlet

Flow velocity given flow ratio

Go Flow velocity at outlet of centrifugal pump = Flow ratio centrifugal pump*sqrt(2*[g]*Manometric Head of Centrifugal Pump)

Flow ratio

Go Flow ratio centrifugal pump = Flow velocity at outlet of centrifugal pump/sqrt(2*[g]*Manometric Head of Centrifugal Pump)

Diameter of delivery pipe

Go Diameter of delivery pipe of pump = sqrt((4*Actual discharge at centrifugal pump outlet)/(pi*Velocity in Delivery Pipe))

Speed ratio

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

Diameter of suction pipe

Go Diameter of suction pipe of pump = sqrt((4*Actual discharge at centrifugal pump outlet)/(pi*Velocity in Suction Pipe))

Net positive suction head

Go Net Positive Suction Head of Centrifugal Pump = Atmospheric Pressure Head for Pump-Static Head of Centrifugal Pump-Vapour Pressure Head

Thoma's Cavitation factor given Net Positive Suction Head

Go Thoma's Cavitation Factor = Net Positive Suction Head of Centrifugal Pump/Manometric Head of Centrifugal Pump

Weight of liquid

Go Weight of liquid in pump = Specific Weight of Liquid*Actual discharge at centrifugal pump outlet

Static head

Go Static Head of Centrifugal Pump = Suction head of centrifugal pump+Delivery head of pump

Vane efficiency

Go Vane Efficiency = Actual Head of Pump/Euler Head of Pump

Leakage of Liquid given Volumetric Efficiency and Discharge Formula

Leakage of Liquid from Impeller = (Actual discharge at centrifugal pump outlet/Volumetric efficiency of centrifugal pump)-Actual discharge at centrifugal pump outlet
q = (Q/η_vol)-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 Leakage of Liquid given Volumetric Efficiency and Discharge?

Leakage of Liquid given Volumetric Efficiency and Discharge calculator uses Leakage of Liquid from Impeller = (Actual discharge at centrifugal pump outlet/Volumetric efficiency of centrifugal pump)-Actual discharge at centrifugal pump outlet to calculate the Leakage of Liquid from Impeller, The Leakage of liquid given volumetric efficiency and discharge formula is defined as the difference between the ratio of discharge to the volumetric efficiency and the discharge rate. Leakage of Liquid from Impeller is denoted by q symbol.

How to calculate Leakage of Liquid given Volumetric Efficiency and Discharge using this online calculator? To use this online calculator for Leakage of Liquid given Volumetric Efficiency and Discharge, enter Actual discharge at centrifugal pump outlet (Q) & Volumetric efficiency of centrifugal pump (η_vol) and hit the calculate button. Here is how the Leakage of Liquid given Volumetric Efficiency and Discharge calculation can be explained with given input values -> 0.002947 = (0.056/0.95)-0.056.

FAQ

What is Leakage of Liquid given Volumetric Efficiency and Discharge?

The Leakage of liquid given volumetric efficiency and discharge formula is defined as the difference between the ratio of discharge to the volumetric efficiency and the discharge rate and is represented as q = (Q/η_vol)-Q or Leakage of Liquid from Impeller = (Actual discharge at centrifugal pump outlet/Volumetric efficiency of centrifugal pump)-Actual discharge at centrifugal pump outlet. Actual discharge at centrifugal pump outlet is the actual amount of the liquid outflow from the outlet of the 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.

How to calculate Leakage of Liquid given Volumetric Efficiency and Discharge?

The Leakage of liquid given volumetric efficiency and discharge formula is defined as the difference between the ratio of discharge to the volumetric efficiency and the discharge rate is calculated using Leakage of Liquid from Impeller = (Actual discharge at centrifugal pump outlet/Volumetric efficiency of centrifugal pump)-Actual discharge at centrifugal pump outlet. To calculate Leakage of Liquid given Volumetric Efficiency and Discharge, you need Actual discharge at centrifugal pump outlet (Q) & Volumetric efficiency of centrifugal pump (η_vol). With our tool, you need to enter the respective value for Actual discharge at centrifugal pump outlet & Volumetric efficiency of centrifugal pump 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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