Propulsive efficiency Calculator

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Efficiency Metrics

Thrust Generation

✖Thrust Power refers to the power generated by a propulsion system to produce thrust and propel an object forward.ⓘ Thrust Power [T_P]			+10% -10%
✖Propulsive Power refers to the power generated by a propulsion system.ⓘ Propulsive Power [P]			+10% -10%

✖Propulsive efficiency is the efficiency with which the energy contained in a fuel is converted into kinetic energy of the vehicle.ⓘ Propulsive efficiency [η_propulsive]

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Formula

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Propulsive efficiency

Formula

`"η"_{"propulsive"} = "T"_{"P"}/"P"`

Example

`"0.620618"="54kW"/"87.01kW"`

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Propulsive efficiency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Propulsive Efficiency = Thrust Power/Propulsive Power
η_propulsive = T_P/P
This formula uses 3 Variables

Variables Used

Propulsive Efficiency - Propulsive efficiency is the efficiency with which the energy contained in a fuel is converted into kinetic energy of the vehicle.
Thrust Power - (Measured in Watt) - Thrust Power refers to the power generated by a propulsion system to produce thrust and propel an object forward.
Propulsive Power - (Measured in Watt) - Propulsive Power refers to the power generated by a propulsion system.

STEP 1: Convert Input(s) to Base Unit

Thrust Power: 54 Kilowatt --> 54000 Watt (Check conversion here)
Propulsive Power: 87.01 Kilowatt --> 87010 Watt (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_propulsive = T_P/P --> 54000/87010

Evaluating ... ...

η_propulsive = 0.620618319733364

STEP 3: Convert Result to Output's Unit

0.620618319733364 --> No Conversion Required

FINAL ANSWER

0.620618319733364 ≈ 0.620618 <-- Propulsive Efficiency

(Calculation completed in 00.006 seconds)

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Credits

Created by Chilvera Bhanu Teja

Institute of Aeronautical Engineering (IARE), Hyderabad

Chilvera Bhanu Teja has created this Calculator and 300+ more calculators!

Verified by Vaibhav Malani

National Institute of Technology (NIT), Tiruchirapalli

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< 12 Efficiency Metrics Calculators

Net work output in simple gas turbine cycle

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

Change in Kinetic Energy of Jet Engine

Go Change in Kinetic Energy = (((Mass Flow Rate+Fuel Flow Rate)*Exit Velocity^2)-(Mass Flow Rate*Flight Speed^2))/2

Propulsive power

Go Propulsive Power = 1/2*((Mass Flow Rate+Fuel Flow Rate)*Exit Velocity^2-(Mass Flow Rate*Flight Speed^2))

Thermal Efficiency of Jet Engines given Effective Speed Ratio

Go Thermal Efficiency = (Exit Velocity^2*(1-Effective Speed Ratio^2))/(2*Fuel Air Ratio*Fuel Calorific Value)

Overall Efficiency given Specific Fuel Consumption

Go Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value)

Overall Efficiency of Propulsive System

Go Overall Efficiency = Thermal Efficiency*Efficiency of Transmission*Propulsive Efficiency

Propulsive efficiency given aircraft velocity

Go Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed)

Transmission Efficiency given Output and Input of Transmission

Go Efficiency of Transmission = Transmission Output Power/Transmission Input Power

Propulsive Efficiency given Effective Speed Ratio

Go Propulsive Efficiency = (2*Effective Speed Ratio)/(1+Effective Speed Ratio)

Isentropic Efficiency of Expansion Machine

Go Turbine Efficiency = Actual Work/Isentropic Work Output

Propulsive efficiency

Go Propulsive Efficiency = Thrust Power/Propulsive Power

Effective speed ratio

Go Effective Speed Ratio = Flight Speed/Exit Velocity

Propulsive efficiency Formula

Propulsive Efficiency = Thrust Power/Propulsive Power
η_propulsive = T_P/P

What is propulsive efficiency?

Propulsive efficiency is the efficiency with which the energy contained in a fuel is converted into kinetic energy of the vehicle.

How to Calculate Propulsive efficiency?

Propulsive efficiency calculator uses Propulsive Efficiency = Thrust Power/Propulsive Power to calculate the Propulsive Efficiency, The Propulsive efficiency formula is defined as the ratio of the thrust power to the propulsive power. Propulsive Efficiency is denoted by η_propulsive symbol.

How to calculate Propulsive efficiency using this online calculator? To use this online calculator for Propulsive efficiency, enter Thrust Power (T_P) & Propulsive Power (P) and hit the calculate button. Here is how the Propulsive efficiency calculation can be explained with given input values -> 0.62069 = 54000/87010.

FAQ

What is Propulsive efficiency?

The Propulsive efficiency formula is defined as the ratio of the thrust power to the propulsive power and is represented as η_propulsive = T_P/P or Propulsive Efficiency = Thrust Power/Propulsive Power. Thrust Power refers to the power generated by a propulsion system to produce thrust and propel an object forward & Propulsive Power refers to the power generated by a propulsion system.

How to calculate Propulsive efficiency?

The Propulsive efficiency formula is defined as the ratio of the thrust power to the propulsive power is calculated using Propulsive Efficiency = Thrust Power/Propulsive Power. To calculate Propulsive efficiency, you need Thrust Power (T_P) & Propulsive Power (P). With our tool, you need to enter the respective value for Thrust Power & Propulsive Power 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 Propulsive Efficiency?

In this formula, Propulsive Efficiency uses Thrust Power & Propulsive Power. We can use 2 other way(s) to calculate the same, which is/are as follows -

Propulsive Efficiency = (2*Effective Speed Ratio)/(1+Effective Speed Ratio)
Propulsive Efficiency = (2*Flight Speed)/(Exit Velocity+Flight Speed)

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