Impeller Outlet Diameter Calculator

✖Tip Velocity is blade speed at the tip of the compressor.ⓘ Tip Velocity [U_t]			+10% -10%
✖RPM is the number of turns of the object divided by time, specified as revolutions per minute (rpm).ⓘ RPM [N]			+10% -10%

✖Impeller Tip Diameter is the distance of the tip from the center of the shaft.ⓘ Impeller Outlet Diameter [D_t]

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Formula

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Impeller Outlet Diameter

Formula

`"D"_{"t"} = (60*"U"_{"t"})/(pi*"N")`

Example

`"0.544872m"=(60*"485m/s")/(pi*"17000")`

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Impeller Outlet Diameter Solution

STEP 0: Pre-Calculation Summary

Formula Used

Impeller Tip Diameter = (60*Tip Velocity)/(pi*RPM)
D_t = (60*U_t)/(pi*N)
This formula uses 1 Constants, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Impeller Tip Diameter - (Measured in Meter) - Impeller Tip Diameter is the distance of the tip from the center of the shaft.
Tip Velocity - (Measured in Meter per Second) - Tip Velocity is blade speed at the tip of the compressor.
RPM - RPM is the number of turns of the object divided by time, specified as revolutions per minute (rpm).

STEP 1: Convert Input(s) to Base Unit

Tip Velocity: 485 Meter per Second --> 485 Meter per Second No Conversion Required
RPM: 17000 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D_t = (60*U_t)/(pi*N) --> (60*485)/(pi*17000)

Evaluating ... ...

D_t = 0.544871628702842

STEP 3: Convert Result to Output's Unit

0.544871628702842 Meter --> No Conversion Required

FINAL ANSWER

0.544871628702842 ≈ 0.544872 Meter <-- Impeller Tip Diameter

(Calculation completed in 00.004 seconds)

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Created by Chilvera Bhanu Teja

Institute of Aeronautical Engineering (IARE), Hyderabad

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National Institute of Technology (NIT), Tiruchirapalli

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< 14 Compressor Calculators

Efficiency of compressor in actual gas turbine cycle

Go Isentropic Efficiency of Compressor = (Temperature at Compressor Exit-Temperature at Compressor Inlet)/(Actual Temperature at Compressor Exit-Temperature at Compressor Inlet)

Minimum Temperature Ratio

Go Temperature Ratio = (Pressure Ratio^((Heat Capacity Ratio-1)/Heat Capacity Ratio))/(Isentropic Efficiency of Compressor*Efficiency of Turbine)

Efficiency of Compressor given Enthalpy

Go Isentropic Efficiency of Compressor = (Ideal Enthalpy after Compression-Enthalpy at Compressor Inlet)/(Actual Enthalpy after Compression-Enthalpy at Compressor Inlet)

Work Required to Drive Compressor Including Mechanical Losses

Go Compressor Work = (1/Mechanical Efficiency)*Specific Heat Capacity at Constant Pressure*(Temperature at Compressor Exit-Temperature at Compressor Inlet)

Shaft Work in Compressible Flow Machines

Go Shaft Work = (Enthalpy at Compressor Inlet+Compressor Inlet Velocity^2/2)-(Enthalpy at Exit of Compressor+Compressor Exit Velocity^2/2)

Tip Velocity of Impeller given Hub Diameter

Go Tip Velocity = pi*RPM/60*sqrt((Impeller Tip Diameter^2+Impeller Hub Diameter^2)/2)

Compressor Work in Gas Turbine given Temperature

Go Compressor Work = Specific Heat Capacity at Constant Pressure*(Temperature at Compressor Exit-Temperature at Compressor Inlet)

Tip Velocity of Impeller given Mean Diameter

Go Tip Velocity = pi*(2*Mean Diameter of Impeller^2-Impeller Hub Diameter^2)^0.5*RPM/60

Mean Diameter of Impeller

Go Mean Diameter of Impeller = sqrt((Impeller Tip Diameter^2+Impeller Hub Diameter^2)/2)

Impeller Outlet Diameter

Go Impeller Tip Diameter = (60*Tip Velocity)/(pi*RPM)

Degree of Reaction for Compressor

Go Degree of Reaction = (Enthalpy Increase in Rotor)/(Enthalpy Increase in Stage)

Isentropic Efficiency of Compression Machine

Go Isentropic Efficiency of Compressor = Isentropic Work Input/Actual Work Input

Compressor work

Go Compressor Work = Enthalpy at Exit of Compressor-Enthalpy at Compressor Inlet

Shaft Work in Compressible Flow Machines neglecting Inlet and Exit Velocities

Go Shaft Work = Enthalpy at Compressor Inlet-Enthalpy at Exit of Compressor

Impeller Outlet Diameter Formula

Impeller Tip Diameter = (60*Tip Velocity)/(pi*RPM)
D_t = (60*U_t)/(pi*N)

What is impeller?

Impeller is a rotating component of a centrifugal pump that accelerates fluid outward from the center of rotation, thus transferring energy from the motor that drives the pump to the fluid being pumped.

How to Calculate Impeller Outlet Diameter?

Impeller Outlet Diameter calculator uses Impeller Tip Diameter = (60*Tip Velocity)/(pi*RPM) to calculate the Impeller Tip Diameter, The Impeller Outlet Diameter formula is defined as the distance of the tip from the center of the shaft. It is the ratio of blade velocity to RPM of shaft. Impeller Tip Diameter is denoted by D_t symbol.

How to calculate Impeller Outlet Diameter using this online calculator? To use this online calculator for Impeller Outlet Diameter, enter Tip Velocity (U_t) & RPM (N) and hit the calculate button. Here is how the Impeller Outlet Diameter calculation can be explained with given input values -> 0.572958 = (60*485)/(pi*17000).

FAQ

What is Impeller Outlet Diameter?

The Impeller Outlet Diameter formula is defined as the distance of the tip from the center of the shaft. It is the ratio of blade velocity to RPM of shaft and is represented as D_t = (60*U_t)/(pi*N) or Impeller Tip Diameter = (60*Tip Velocity)/(pi*RPM). Tip Velocity is blade speed at the tip of the compressor & RPM is the number of turns of the object divided by time, specified as revolutions per minute (rpm).

How to calculate Impeller Outlet Diameter?

The Impeller Outlet Diameter formula is defined as the distance of the tip from the center of the shaft. It is the ratio of blade velocity to RPM of shaft is calculated using Impeller Tip Diameter = (60*Tip Velocity)/(pi*RPM). To calculate Impeller Outlet Diameter, you need Tip Velocity (U_t) & RPM (N). With our tool, you need to enter the respective value for Tip Velocity & RPM 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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