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Theoretical Air Requirement Formula

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Theoretical Air Requirement is defined as the minimum amount of air which will allow the complete combustion of the fuel is called the Theoretical Air (also referred to as Stoichiometric Air). Check FAQs

Air Theoretical = \frac{O 2 Demand}{0.21}

Air_Theoretical - Theoretical Air Requirement?O₂Demand - Theoretical Oxygen Demand?

Theoretical Air Requirement Example

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Here is how the Theoretical Air Requirement equation looks like with Values.

Here is how the Theoretical Air Requirement equation looks like with Units.

Here is how the Theoretical Air Requirement equation looks like.

57.1429 = \frac{12}{0.21}

57.1429mol = \frac{12mol}{0.21}

57.1429 = \frac{12}{0.21}

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Theoretical Air Requirement Solution

Follow our step by step solution on how to calculate Theoretical Air Requirement?

FIRST Step Consider the formula

Air Theoretical = \frac{O 2 Demand}{0.21}

Next Step Substitute values of Variables

∴

Air Theoretical = \frac{12mol}{0.21}

Next Step Prepare to Evaluate

∴

Air Theoretical = \frac{12}{0.21}

Next Step Evaluate

∴

Air Theoretical = 57.1428571428571mol

LAST Step Rounding Answer

∴

Air Theoretical = 57.1429mol

Theoretical Air Requirement Formula Elements

Variables

Theoretical Air Requirement

Theoretical Air Requirement is defined as the minimum amount of air which will allow the complete combustion of the fuel is called the Theoretical Air (also referred to as Stoichiometric Air).

Symbol: Air_Theoretical

Measurement: Amount of SubstanceUnit: mol

Note: Value should be greater than 0.

Formulas to find Theoretical Air Requirement

Theoretical Oxygen Demand

Theoretical Oxygen Demand is defined as required moles of Oxygen for complete combustion of all the fuel based on stoichiometry to produce Carbon dioxide.

Symbol: O₂Demand

Measurement: Amount of SubstanceUnit: mol

Note: Value should be greater than 0.

Formulas to find Theoretical Oxygen Demand

Other formulas in Fuel and Combustion category

Go Percent Excess Air

% Excess Air = (\frac{M Fed - M Theoretical}{M Theoretical}) \cdot 100

Go Percent Excess Oxygen

% Excess O 2 = (\frac{0.21 \cdot (M Fed - M OxyTheo)}{M OxyTheo}) \cdot 100

Go Net Calorific Value

NCV = GCV - (m \cdot λ)

Go Net Calorific Value Based on Weight Percent of Hydrogen

NCV = GCV - (\frac{Weight % of H 2 \cdot 9 \cdot λ}{100})

How to Evaluate Theoretical Air Requirement?

Theoretical Air Requirement evaluator uses Theoretical Air Requirement = Theoretical Oxygen Demand/0.21 to evaluate the Theoretical Air Requirement, The Theoretical Air Requirement is defined as the minimum amount of air supply required for the complete combustion of the fuel. Theoretical Air is also referred to as Stoichiometric Air. Theoretical Air Requirement is denoted by Air_Theoretical symbol.

How to evaluate Theoretical Air Requirement using this online evaluator? To use this online evaluator for Theoretical Air Requirement, enter Theoretical Oxygen Demand (O₂Demand) and hit the calculate button.

FAQs on Theoretical Air Requirement

What is the formula to find Theoretical Air Requirement?

The formula of Theoretical Air Requirement is expressed as Theoretical Air Requirement = Theoretical Oxygen Demand/0.21. Here is an example- 57.14286 = 12/0.21.

How to calculate Theoretical Air Requirement?

With Theoretical Oxygen Demand (O₂Demand) we can find Theoretical Air Requirement using the formula - Theoretical Air Requirement = Theoretical Oxygen Demand/0.21.

Can the Theoretical Air Requirement be negative?

No, the Theoretical Air Requirement, measured in Amount of Substance cannot be negative.

Which unit is used to measure Theoretical Air Requirement?

Theoretical Air Requirement is usually measured using the Mole[mol] for Amount of Substance. Millimole[mol], Kilomole[mol], Pound Mole[mol] are the few other units in which Theoretical Air Requirement can be measured.

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