This work describes a numerical model for calculation of carbon monoxide (CO) emissions from spark ignition engines. The model calculates CO concentration from a kinetic mechanism and from the equilibrium combustion equation. A computer program that simulates the cycle of spark ignition engines performs the CO model calculations. The model was validated against experimental data from a single-cylinder research engine and from a production multi-cylinder engine. The varied parameters were air/fuel ratio, load and engine speed. From comparison with calculated equilibrium concentration, it is shown that CO should be modeled by chemical kinetics for better agreement with measured exhaust values.
|Number of pages||7|
|Journal||Journal of the Brazilian Society of Mechanical Sciences and Engineering|
|Early online date||5 Sep 2013|
|Publication status||Published - 14 Jan 2014|
- Carbon monoxide
- Chemical kinetics
- Spark ignition engine