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Air Fuel Ratio Formula

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Air to Fuel ratio is the ratio of the mass of air to the mass of fuel during combustion. It dictates the efficiency of the combustion and the performance of the engine. Check FAQs

AFR = \frac{m air}{m fuel}

AFR - Air to Fuel Ratio?m_air - Mass of Air?m_fuel - Mass of Fuel?

Air Fuel Ratio Example

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Here is how the Air Fuel Ratio equation looks like with Values.

Here is how the Air Fuel Ratio equation looks like with Units.

Here is how the Air Fuel Ratio equation looks like.

2.1429 = \frac{6}{2.8}

2.1429 = \frac{6kg}{2.8kg}

2.1429 = \frac{6}{2.8}

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Air Fuel Ratio Solution

Follow our step by step solution on how to calculate Air Fuel Ratio?

FIRST Step Consider the formula

AFR = \frac{m air}{m fuel}

Next Step Substitute values of Variables

∴

AFR = \frac{6kg}{2.8kg}

Next Step Prepare to Evaluate

∴

AFR = \frac{6}{2.8}

Next Step Evaluate

∴

AFR = 2.14285714285714

LAST Step Rounding Answer

∴

AFR = 2.1429

Air Fuel Ratio Formula Elements

Variables

Air to Fuel Ratio

Air to Fuel ratio is the ratio of the mass of air to the mass of fuel during combustion. It dictates the efficiency of the combustion and the performance of the engine.

Symbol: AFR

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Air to Fuel Ratio

Mass of Air

Mass of Air is both a property of air and a measure of its resistance to acceleration when a net force is applied.

Symbol: m_air

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Mass of Air

Mass of Fuel

Mass of Fuel is both a property of fuel and a measure of its resistance to acceleration when a net force is applied to it.

Symbol: m_fuel

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Mass of Fuel

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How to Evaluate Air Fuel Ratio?

Air Fuel Ratio evaluator uses Air to Fuel Ratio = Mass of Air/Mass of Fuel to evaluate the Air to Fuel Ratio, Air Fuel Ratio is the ratio of the mass of air to the mass of fuel during combustion. Air to Fuel Ratio is denoted by AFR symbol.

How to evaluate Air Fuel Ratio using this online evaluator? To use this online evaluator for Air Fuel Ratio, enter Mass of Air (m_air) & Mass of Fuel (m_fuel) and hit the calculate button.

FAQs on Air Fuel Ratio

What is the formula to find Air Fuel Ratio?

The formula of Air Fuel Ratio is expressed as Air to Fuel Ratio = Mass of Air/Mass of Fuel. Here is an example- 2.142857 = 6/2.8.

How to calculate Air Fuel Ratio?

With Mass of Air (m_air) & Mass of Fuel (m_fuel) we can find Air Fuel Ratio using the formula - Air to Fuel Ratio = Mass of Air/Mass of Fuel.

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Air Fuel Ratio Formula

Air Fuel Ratio Example

Air Fuel Ratio Solution

Air Fuel Ratio Formula Elements

Other formulas in Heat Engine and Heat Pump category

How to Evaluate Air Fuel Ratio?

FAQs on Air Fuel Ratio

Variable Name