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Overall Efficiency given Specific Fuel Consumption Formula

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Overall Efficiency is the efficiency of the entire system from the initial input to the final output including propulsive, thermal, and transmission efficiency. Check FAQs

η o = \frac{V}{TSFC \cdot Q}

η_o - Overall Efficiency?V - Flight Speed?TSFC - Thrust-Specific Fuel Consumption?Q - Fuel Calorific Value?

Overall Efficiency given Specific Fuel Consumption Example

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Here is how the Overall Efficiency given Specific Fuel Consumption equation looks like with Values.

Here is how the Overall Efficiency given Specific Fuel Consumption equation looks like with Units.

Here is how the Overall Efficiency given Specific Fuel Consumption equation looks like.

0.6123 = \frac{111}{0.015 \cdot 43510}

0.6123 = \frac{111m/s}{0.015kg/h/N \cdot 43510kJ/kg}

0.6123 = \frac{111}{0.015 \cdot 43510}

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Overall Efficiency given Specific Fuel Consumption Solution

Follow our step by step solution on how to calculate Overall Efficiency given Specific Fuel Consumption?

FIRST Step Consider the formula

η o = \frac{V}{TSFC \cdot Q}

Next Step Substitute values of Variables

∴

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

Next Step Convert Units

∴

η o = \frac{111m/s}{4.2E-6kg/s/N \cdot 4.4E+7J/kg}

Next Step Prepare to Evaluate

∴

η o = \frac{111}{4.2E-6 \cdot 4.4E+7}

Next Step Evaluate

∴

η o = 0.612273040680303

LAST Step Rounding Answer

∴

η o = 0.6123

Overall Efficiency given Specific Fuel Consumption Formula Elements

Variables

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.

Symbol: η_o

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Overall Efficiency

Flight Speed

Flight Speed refers to the velocity at which an aircraft moves through the air.

Symbol: V

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Flight Speed

Thrust-Specific Fuel Consumption

Thrust-Specific Fuel Consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output.

Symbol: TSFC

Measurement: Thrust Specific Fuel ConsumptionUnit: kg/h/N

Note: Value should be greater than 0.

Formulas to find Thrust-Specific Fuel Consumption

Fuel Calorific Value

Fuel Calorific Value denotes the amount of heat energy released per unit mass of fuel upon complete combustion.

Symbol: Q

Measurement: Specific EnergyUnit: kJ/kg

Note: Value should be greater than 0.

Formulas to find Fuel Calorific Value

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 Overall Efficiency given Specific Fuel Consumption?

Overall Efficiency given Specific Fuel Consumption evaluator uses Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value) to evaluate 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 evaluate Overall Efficiency given Specific Fuel Consumption using this online evaluator? To use this online evaluator 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.

FAQs on Overall Efficiency given Specific Fuel Consumption

What is the formula to find Overall Efficiency given Specific Fuel Consumption?

The formula of Overall Efficiency given Specific Fuel Consumption is expressed as Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value). Here is an example- 0.612273 = 111/(4.16666666666667E-06*43510000).

How to calculate Overall Efficiency given Specific Fuel Consumption?

With Flight Speed (V), Thrust-Specific Fuel Consumption (TSFC) & Fuel Calorific Value (Q) we can find Overall Efficiency given Specific Fuel Consumption using the formula - Overall Efficiency = Flight Speed/(Thrust-Specific Fuel Consumption*Fuel Calorific Value).

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Overall Efficiency given Specific Fuel Consumption Formula

Overall Efficiency given Specific Fuel Consumption Example

Overall Efficiency given Specific Fuel Consumption Solution

Overall Efficiency given Specific Fuel Consumption Formula Elements

Other formulas in Efficiency Metrics category

How to Evaluate Overall Efficiency given Specific Fuel Consumption?

FAQs on Overall Efficiency given Specific Fuel Consumption

Variable Name