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Propulsive efficiency Formula

GoPropulsive Efficiency given Effective Speed Ratio Formula

GoPropulsive efficiency given aircraft velocity Formula

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

η propulsive = \frac{T P}{P}

η_propulsive - Propulsive Efficiency?T_P - Thrust Power?P - Propulsive Power?

Propulsive efficiency Example

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With units

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Here is how the Propulsive efficiency equation looks like with Values.

Here is how the Propulsive efficiency equation looks like with Units.

Here is how the Propulsive efficiency equation looks like.

0.6206 = \frac{54}{87.01}

0.6206 = \frac{54kW}{87.01kW}

0.6206 = \frac{54}{87.01}

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Propulsive efficiency Solution

Follow our step by step solution on how to calculate Propulsive efficiency?

FIRST Step Consider the formula

η propulsive = \frac{T P}{P}

Next Step Substitute values of Variables

∴

η propulsive = \frac{54kW}{87.01kW}

Next Step Convert Units

∴

η propulsive = \frac{54000W}{87010W}

Next Step Prepare to Evaluate

∴

η propulsive = \frac{54000}{87010}

Next Step Evaluate

∴

η propulsive = 0.620618319733364

LAST Step Rounding Answer

∴

η propulsive = 0.6206

Propulsive efficiency Formula Elements

Variables

Propulsive Efficiency

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

Symbol: η_propulsive

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Propulsive Efficiency

Thrust Power

Thrust Power refers to the power generated by a propulsion system to produce thrust and propel an object forward.

Symbol: T_P

Measurement: PowerUnit: kW

Note: Value should be greater than 0.

Formulas to find Thrust Power

Propulsive Power

Propulsive Power refers to the power generated by a propulsion system.

Symbol: P

Measurement: PowerUnit: kW

Note: Value should be greater than 0.

Formulas to find Propulsive Power

Other Formulas to find Propulsive Efficiency

Go Propulsive Efficiency given Effective Speed Ratio

η propulsive = \frac{2 \cdot α}{1 + α}

Go Propulsive efficiency given aircraft velocity

η propulsive = \frac{2 \cdot V}{V e + V}

Other formulas in Efficiency Metrics category

Go Isentropic Efficiency of Expansion Machine

η T = \frac{W actual}{W s,out}

Go Net work output in simple gas turbine cycle

W Net = C p \cdot ((T 3 - T 4) - (T 2 - T 1))

Go Propulsive power

P = \frac{1}{2} \cdot ((m a + m f) \cdot {V e}^{2} - (m a \cdot V^{2}))

Go Thermal Efficiency of Jet Engines given Effective Speed Ratio

η th = \frac{{V e}^{2} \cdot (1 - α^{2})}{2 \cdot f \cdot Q}

How to Evaluate Propulsive efficiency?

Propulsive efficiency evaluator uses Propulsive Efficiency = Thrust Power/Propulsive Power to evaluate the Propulsive Efficiency, Propulsive efficiency is a measure of the effectiveness of a propulsion system in converting the energy expended into useful work, quantifying the ratio of the thrust power to the total power consumed. Propulsive Efficiency is denoted by η_propulsive symbol.

How to evaluate Propulsive efficiency using this online evaluator? To use this online evaluator for Propulsive efficiency, enter Thrust Power (T_P) & Propulsive Power (P) and hit the calculate button.

FAQs on Propulsive efficiency

What is the formula to find Propulsive efficiency?

The formula of Propulsive efficiency is expressed as Propulsive Efficiency = Thrust Power/Propulsive Power. Here is an example- 0.620618 = 54000/87010.

How to calculate Propulsive efficiency?

With Thrust Power (T_P) & Propulsive Power (P) we can find Propulsive efficiency using the formula - Propulsive Efficiency = Thrust Power/Propulsive Power.

What are the other ways to Calculate Propulsive Efficiency?

Here are the different ways to Calculate Propulsive Efficiency-

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

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