Overall Efficiency given Specific Fuel Consumption Calculator

✖Flight Speed refers to the velocity at which an aircraft moves through the air.ⓘ Flight Speed [V]			+10% -10%
✖Thrust-Specific Fuel Consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output.ⓘ Thrust-Specific Fuel Consumption [TSFC]			+10% -10%
✖Fuel Calorific Value denotes the amount of heat energy released per unit mass of fuel upon complete combustion.ⓘ Fuel Calorific Value [Q]			+10% -10%

✖Overall Efficiency is the efficiency of the entire system from the initial input to the final output including propulsive, thermal, and transmission efficiency.ⓘ Overall Efficiency given Specific Fuel Consumption [η_o]

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Formula

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Overall Efficiency given Specific Fuel Consumption

Formula

η o = \frac{V}{TSFC \cdot Q}

Example

0.612273 = \frac{111 m/s}{0.015 kg/h/N \cdot 43510 kJ/kg}

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Overall Efficiency given Specific Fuel Consumption Solution

STEP 0: Pre-Calculation Summary

Formula Used

Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value)
η_o = V/(TSFC*Q)
This formula uses 4 Variables

Variables Used

Overall Efficiency - Overall Efficiency is the efficiency of the entire system from the initial input to the final output including propulsive, thermal, and transmission efficiency.
Flight Speed - (Measured in Meter per Second) - Flight Speed refers to the velocity at which an aircraft moves through the air.
Thrust-Specific Fuel Consumption - (Measured in Kilogram per Second per Newton) - Thrust-Specific Fuel Consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output.
Fuel Calorific Value - (Measured in Joule per Kilogram) - Fuel Calorific Value denotes the amount of heat energy released per unit mass of fuel upon complete combustion.

STEP 1: Convert Input(s) to Base Unit

Flight Speed: 111 Meter per Second --> 111 Meter per Second No Conversion Required
Thrust-Specific Fuel Consumption: 0.015 Kilogram per Hour per Newton --> 4.16666666666667E-06 Kilogram per Second per Newton (Check conversion here)
Fuel Calorific Value: 43510 Kilojoule per Kilogram --> 43510000 Joule per Kilogram (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_o = V/(TSFC*Q) --> 111/(4.16666666666667E-06*43510000)

Evaluating ... ...

η_o = 0.612273040680303

STEP 3: Convert Result to Output's Unit

0.612273040680303 --> No Conversion Required

FINAL ANSWER

0.612273040680303 ≈ 0.612273 <-- Overall Efficiency

(Calculation completed in 00.020 seconds)

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Created by Shreyash

Rajiv Gandhi Institute of Technology (RGIT), Mumbai

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National Institute Of Technology (NIT), Hamirpur

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< Efficiency Metrics Calculators

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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))

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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)

Isentropic Efficiency of Expansion Machine

Go Turbine Efficiency = Actual Work/Isentropic Work Output

Overall Efficiency given Specific Fuel Consumption Formula

Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value)
η_o = V/(TSFC*Q)

Specific Fuel Consumption(SFC)

SFC is a mathematical measure of how effectively an engine turns fuel into power. It is the amount of gasoline used per unit of time necessary to generate a specific engine output.

How to Calculate Overall Efficiency given Specific Fuel Consumption?

Overall Efficiency given Specific Fuel Consumption calculator uses Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value) to calculate the Overall Efficiency, Overall Efficiency given Specific Fuel Consumption is a measure of an engine's efficiency in converting the energy released from fuel into useful work, taking into account the amount of fuel consumed and the energy released per unit of fuel. Overall Efficiency is denoted by η_o symbol.

How to calculate Overall Efficiency given Specific Fuel Consumption using this online calculator? To use this online calculator for Overall Efficiency given Specific Fuel Consumption, enter Flight Speed (V), Thrust-Specific Fuel Consumption (TSFC) & Fuel Calorific Value (Q) and hit the calculate button. Here is how the Overall Efficiency given Specific Fuel Consumption calculation can be explained with given input values -> 0.612273 = 111/(4.16666666666667E-06*43510000).

FAQ

What is Overall Efficiency given Specific Fuel Consumption?

Overall Efficiency given Specific Fuel Consumption is a measure of an engine's efficiency in converting the energy released from fuel into useful work, taking into account the amount of fuel consumed and the energy released per unit of fuel and is represented as η_o = V/(TSFC*Q) or Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value). Flight Speed refers to the velocity at which an aircraft moves through the air, Thrust-Specific Fuel Consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output & Fuel Calorific Value denotes the amount of heat energy released per unit mass of fuel upon complete combustion.

How to calculate Overall Efficiency given Specific Fuel Consumption?

Overall Efficiency given Specific Fuel Consumption is a measure of an engine's efficiency in converting the energy released from fuel into useful work, taking into account the amount of fuel consumed and the energy released per unit of fuel is calculated using Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value). To calculate Overall Efficiency given Specific Fuel Consumption, you need Flight Speed (V), Thrust-Specific Fuel Consumption (TSFC) & Fuel Calorific Value (Q). With our tool, you need to enter the respective value for Flight Speed, Thrust-Specific Fuel Consumption & Fuel Calorific Value 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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