Brake specific fuel consumption Calculator

✖Fuel Consumption in IC engine is the amount of fuel consumed by the internal combustion engine.ⓘ Fuel Consumption in IC engine [ṁ_f]			+10% -10%
✖Brake Power is the power available at the crankshaft.ⓘ Brake Power [BP]			+10% -10%

✖Brake Specific Fuel Consumption is the fuel consumption per unit time per unit brake power.ⓘ Brake specific fuel consumption [BSFC]

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Formula

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Brake specific fuel consumption

Formula

BSFC = \frac{ṁ f}{BP}

Example

0.005891 kg/h/W = \frac{0.00090 kg/s}{0.55 kW}

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Brake specific fuel consumption Solution

STEP 0: Pre-Calculation Summary

Formula Used

Brake Specific Fuel Consumption = Fuel Consumption in IC engine/Brake Power
BSFC = ṁ_f/BP
This formula uses 3 Variables

Variables Used

Brake Specific Fuel Consumption - (Measured in Kilogram per Second per Watt) - Brake Specific Fuel Consumption is the fuel consumption per unit time per unit brake power.
Fuel Consumption in IC engine - (Measured in Kilogram per Second) - Fuel Consumption in IC engine is the amount of fuel consumed by the internal combustion engine.
Brake Power - (Measured in Watt) - Brake Power is the power available at the crankshaft.

STEP 1: Convert Input(s) to Base Unit

Fuel Consumption in IC engine: 0.0009 Kilogram per Second --> 0.0009 Kilogram per Second No Conversion Required
Brake Power: 0.55 Kilowatt --> 550 Watt (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

BSFC = ṁ_f/BP --> 0.0009/550

Evaluating ... ...

BSFC = 1.63636363636364E-06

STEP 3: Convert Result to Output's Unit

1.63636363636364E-06 Kilogram per Second per Watt -->0.00589090909090909 Kilogram per Hour per Watt (Check conversion here)

FINAL ANSWER

0.00589090909090909 ≈ 0.005891 Kilogram per Hour per Watt <-- Brake Specific Fuel Consumption

(Calculation completed in 00.004 seconds)

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Created by Aditya Prakash Gautam

Indian Institute of Technology (IIT (ISM) ), Dhanbad, Jharkhand

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National Institute Of Technology (NIT), Hamirpur

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< Important Formulas of Engine Dynamics Calculators

Brake Power given Mean Effective Pressure

Go Brake Power = (Brake Mean Effective Pressure*Stroke Length*Area of Cross Section*(Engine Speed))

Beale Number

Go Beale Number = Engine Power/(Average Gas Pressure*Piston Swept Volume*Engine Frequency)

Brake specific fuel consumption

Go Brake Specific Fuel Consumption = Fuel Consumption in IC engine/Brake Power

Brake Power given Mechanical Efficiency

Go Brake Power = (Mechanical Efficiency/100)*Indicated Power

< Power and Efficiency Calculators

Brake Power given Mean Effective Pressure

Go Brake Power = (Brake Mean Effective Pressure*Stroke Length*Area of Cross Section*(Engine Speed))

Indicated Power given Mechanical Efficiency

Go Indicated Power = Brake Power/(Mechanical Efficiency/100)

Brake Power given Mechanical Efficiency

Go Brake Power = (Mechanical Efficiency/100)*Indicated Power

Mechanical Efficiency of IC engine

Go Mechanical Efficiency = (Brake Power/Indicated Power)*100

Brake specific fuel consumption Formula

Brake Specific Fuel Consumption = Fuel Consumption in IC engine/Brake Power
BSFC = ṁ_f/BP

What is Brake Specific Fuel Consumption?

Brake Specific Fuel Consumption (BSFC) is a measure of the fuel efficiency of any prime mover that burns fuel and produces rotational, or shaft, power. It is typically used for comparing the efficiency of internal combustion engines with a shaft output. It is the rate of fuel consumption divided by the power (here, brake power) produced.

How to Calculate Brake specific fuel consumption?

Brake specific fuel consumption calculator uses Brake Specific Fuel Consumption = Fuel Consumption in IC engine/Brake Power to calculate the Brake Specific Fuel Consumption, The Brake Specific Fuel Consumption formula is defined as the fuel consumption per unit time divided by the brake power of an IC engine. Brake Specific Fuel Consumption is denoted by BSFC symbol.

How to calculate Brake specific fuel consumption using this online calculator? To use this online calculator for Brake specific fuel consumption, enter Fuel Consumption in IC engine (ṁ_f) & Brake Power (BP) and hit the calculate button. Here is how the Brake specific fuel consumption calculation can be explained with given input values -> 21.20727 = 0.0009/550.

FAQ

What is Brake specific fuel consumption?

The Brake Specific Fuel Consumption formula is defined as the fuel consumption per unit time divided by the brake power of an IC engine and is represented as BSFC = ṁ_f/BP or Brake Specific Fuel Consumption = Fuel Consumption in IC engine/Brake Power. Fuel Consumption in IC engine is the amount of fuel consumed by the internal combustion engine & Brake Power is the power available at the crankshaft.

How to calculate Brake specific fuel consumption?

The Brake Specific Fuel Consumption formula is defined as the fuel consumption per unit time divided by the brake power of an IC engine is calculated using Brake Specific Fuel Consumption = Fuel Consumption in IC engine/Brake Power. To calculate Brake specific fuel consumption, you need Fuel Consumption in IC engine (ṁ_f) & Brake Power (BP). With our tool, you need to enter the respective value for Fuel Consumption in IC engine & Brake Power 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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