Diffuser Efficiency Calculator

✖Actual Static Pressure Rise denotes the change(increase) in pressure between two points in a diffuser considering losses.ⓘ Actual Static Pressure Rise [ΔP]			+10% -10%
✖Isentropic Static Pressure Rise denotes the change in pressure(increase) between two points in a diffuser, assuming no losses.ⓘ Isentropic Static Pressure Rise [ΔP']			+10% -10%

✖The diffuser efficiency is defined as the ratio of static pressure rise in an actual process to the static pressure rise in an isentropic process.ⓘ Diffuser Efficiency [η_d]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Components of Gas Turbine Formula PDF PDF Image

Diffuser Efficiency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Diffuser Efficiency = Actual Static Pressure Rise/Isentropic Static Pressure Rise
η_d = ΔP/ΔP'
This formula uses 3 Variables

Variables Used

Diffuser Efficiency - The diffuser efficiency is defined as the ratio of static pressure rise in an actual process to the static pressure rise in an isentropic process.
Actual Static Pressure Rise - (Measured in Pascal) - Actual Static Pressure Rise denotes the change(increase) in pressure between two points in a diffuser considering losses.
Isentropic Static Pressure Rise - (Measured in Pascal) - Isentropic Static Pressure Rise denotes the change in pressure(increase) between two points in a diffuser, assuming no losses.

STEP 1: Convert Input(s) to Base Unit

Actual Static Pressure Rise: 39 Pascal --> 39 Pascal No Conversion Required
Isentropic Static Pressure Rise: 40 Pascal --> 40 Pascal No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_d = ΔP/ΔP' --> 39/40

Evaluating ... ...

η_d = 0.975

STEP 3: Convert Result to Output's Unit

0.975 --> No Conversion Required

FINAL ANSWER

0.975 <-- Diffuser Efficiency

(Calculation completed in 00.004 seconds)

You are here -

Home » Physics » Propulsion » Components of Gas Turbine » Aerospace » Inlets » Diffuser Efficiency

Credits

Created by ADITYA RAWAT

DIT UNIVERSITY (DITU), Dehradun

ADITYA RAWAT has created this Calculator and 50+ more calculators!

Verified by Abhishek Dharmendra Bansile

Vishwakarma Institute of Information Technology, Pune (VIIT Pune), Pune

Abhishek Dharmendra Bansile has verified this Calculator and 10+ more calculators!

< Inlets Calculators

Diffuser Efficiency given Inlet and Exit Velocities

LaTeX Go Diffuser Efficiency = Actual Static Pressure Rise/(Density of Air/2*(Inlet Velocity to Diffuser^2-Exit Velocity to Diffuser^2))

Diffuser Efficiency

LaTeX Go Diffuser Efficiency = Actual Static Pressure Rise/Isentropic Static Pressure Rise

Kinetic Energy of Air at Inlet

LaTeX Go Kinetic Energy = 1/2*Mass Flow Rate of Air*Aircraft Forward Speed^2

Inlet drag

LaTeX Go Inlet drag = Mass Flow Rate of Air*Aircraft Forward Speed

Diffuser Efficiency Formula

LaTeX Go

Diffuser Efficiency = Actual Static Pressure Rise/Isentropic Static Pressure Rise
η_d = ΔP/ΔP'

It exlplains how efficiently the diffuser is working in a process

We look into the pressures at two given points and calculate the differences separately for both actual and ideal(isentropic process).The change in pressure in ideal process can also be changed to the change in kinetic energy =0.5*ρ*(C1square-C2square) where C1 and C2 stand for the velocities at point 1 and 2 .

How to Calculate Diffuser Efficiency?

Diffuser Efficiency calculator uses Diffuser Efficiency = Actual Static Pressure Rise/Isentropic Static Pressure Rise to calculate the Diffuser Efficiency, Diffuser Efficiency formula is defined as the ratio of static pressure rise in the actual process to the static pressure rise in the isentropic process. Diffuser Efficiency is denoted by η_d symbol.

How to calculate Diffuser Efficiency using this online calculator? To use this online calculator for Diffuser Efficiency, enter Actual Static Pressure Rise (ΔP) & Isentropic Static Pressure Rise (ΔP') and hit the calculate button. Here is how the Diffuser Efficiency calculation can be explained with given input values -> 0.975 = 39/40.

FAQ

What is Diffuser Efficiency?

Diffuser Efficiency formula is defined as the ratio of static pressure rise in the actual process to the static pressure rise in the isentropic process and is represented as η_d = ΔP/ΔP' or Diffuser Efficiency = Actual Static Pressure Rise/Isentropic Static Pressure Rise. Actual Static Pressure Rise denotes the change(increase) in pressure between two points in a diffuser considering losses & Isentropic Static Pressure Rise denotes the change in pressure(increase) between two points in a diffuser, assuming no losses.

How to calculate Diffuser Efficiency?

Diffuser Efficiency formula is defined as the ratio of static pressure rise in the actual process to the static pressure rise in the isentropic process is calculated using Diffuser Efficiency = Actual Static Pressure Rise/Isentropic Static Pressure Rise. To calculate Diffuser Efficiency, you need Actual Static Pressure Rise (ΔP) & Isentropic Static Pressure Rise (ΔP'). With our tool, you need to enter the respective value for Actual Static Pressure Rise & Isentropic Static Pressure Rise 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 Diffuser Efficiency?

In this formula, Diffuser Efficiency uses Actual Static Pressure Rise & Isentropic Static Pressure Rise. We can use 1 other way(s) to calculate the same, which is/are as follows -

Diffuser Efficiency = Actual Static Pressure Rise/(Density of Air/2*(Inlet Velocity to Diffuser^2-Exit Velocity to Diffuser^2))

Home

FREE PDFs

🔍 Search