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Thrust specific fuel consumption Formula

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

TSFC = \frac{f a}{I sp}

TSFC - Thrust-Specific Fuel Consumption?f_a - Fuel to Air Ratio?I_sp - Specific Thrust?

Thrust specific fuel consumption Example

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Here is how the Thrust specific fuel consumption equation looks like with Values.

Here is how the Thrust specific fuel consumption equation looks like with Units.

Here is how the Thrust specific fuel consumption equation looks like.

0.0158 = \frac{0.0006}{137.02}

0.0158kg/h/N = \frac{0.0006}{137.02m/s}

0.0158 = \frac{0.0006}{137.02}

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Thrust specific fuel consumption Solution

Follow our step by step solution on how to calculate Thrust specific fuel consumption?

FIRST Step Consider the formula

TSFC = \frac{f a}{I sp}

Next Step Substitute values of Variables

∴

TSFC = \frac{0.0006}{137.02m/s}

Next Step Prepare to Evaluate

∴

TSFC = \frac{0.0006}{137.02}

Next Step Evaluate

∴

TSFC = 4.37892278499489E-06kg/s/N

Next Step Convert to Output's Unit

∴

TSFC = 0.0157641220259816kg/h/N

LAST Step Rounding Answer

∴

TSFC = 0.0158kg/h/N

Thrust specific fuel consumption Formula Elements

Variables

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 to Air Ratio

Fuel to Air Ratio is the ratio of mass flow rate of fuel to the mass flow rate of air.

Symbol: f_a

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Fuel to Air Ratio

Specific Thrust

Specific Thrust is the thrust produced per unit mass in per unit time.

Symbol: I_sp

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Specific Thrust

Other formulas in Thrust Generation category

Go Total Thrust given Efficiency and Enthalpy

T total = m a \cdot ((\sqrt{2 \cdot Δh nozzle \cdot η nozzle}) - V + (\sqrt{η T \cdot η transmission \cdot Δh turbine}))

Go Ideal Thrust given Effective Speed Ratio

T ideal = m a \cdot V \cdot ((\frac{1}{α}) - 1)

Go Thrust power

T P = m a \cdot V \cdot (V e - V)

Go Specific thrust

I sp = V e - V

How to Evaluate Thrust specific fuel consumption?

Thrust specific fuel consumption evaluator uses Thrust-Specific Fuel Consumption = Fuel to Air Ratio/Specific Thrust to evaluate the Thrust-Specific Fuel Consumption, Thrust Specific Fuel Consumption is a measure of the rate at which fuel is consumed to produce a unit of thrust, calculated as the ratio of fuel-to-air ratio to specific thrust, providing a key indicator of an aircraft engine's efficiency and performance. Thrust-Specific Fuel Consumption is denoted by TSFC symbol.

How to evaluate Thrust specific fuel consumption using this online evaluator? To use this online evaluator for Thrust specific fuel consumption, enter Fuel to Air Ratio (f_a) & Specific Thrust (I_sp) and hit the calculate button.

FAQs on Thrust specific fuel consumption

What is the formula to find Thrust specific fuel consumption?

The formula of Thrust specific fuel consumption is expressed as Thrust-Specific Fuel Consumption = Fuel to Air Ratio/Specific Thrust. Here is an example- 66.20931 = 0.0006/137.02.

How to calculate Thrust specific fuel consumption?

With Fuel to Air Ratio (f_a) & Specific Thrust (I_sp) we can find Thrust specific fuel consumption using the formula - Thrust-Specific Fuel Consumption = Fuel to Air Ratio/Specific Thrust.

Can the Thrust specific fuel consumption be negative?

No, the Thrust specific fuel consumption, measured in Thrust Specific Fuel Consumption cannot be negative.

Which unit is used to measure Thrust specific fuel consumption?

Thrust specific fuel consumption is usually measured using the Kilogram per Hour per Newton[kg/h/N] for Thrust Specific Fuel Consumption. Kilogram per Second per Newton[kg/h/N], Gram per Second per Newton[kg/h/N] are the few other units in which Thrust specific fuel consumption can be measured.

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Thrust specific fuel consumption Formula

Thrust specific fuel consumption Example

Thrust specific fuel consumption Solution

Thrust specific fuel consumption Formula Elements

Other formulas in Thrust Generation category

How to Evaluate Thrust specific fuel consumption?

FAQs on Thrust specific fuel consumption

Variable Name