Stoichiometric Combustion
Just sufficient air is present for complete combustion of the fuel.
The stoichiometric air fuel ratio is defined as:
Some AFR values for common hydrocarbons are shown in the following table:
| Methane CH4 | 17.17 |
| Propane C3H8 | 15.61 |
| Heptane C7H16 | 15.11 |
| Octane C8H18 | 15.06 |
| Benzene C6H6 | 13.2 |
See also: Lean Mixture.
Subjects: Chemistry