What role does secondary air play in combustion?

In combustion processes, secondary air is crucial for enhancing the mixing of fuel and air, which is essential for efficient combustion. When secondary air is introduced, it helps to create turbulence around the fuel particles. This turbulence ensures better mixing, allowing for a more complete combustion of the fuel. By improving the interaction between the fuel and the oxygen in the air, secondary air contributes to a more efficient burn, reducing unburned hydrocarbons and lowering emissions.

This mixing effect not only leads to a more stable combustion but also promotes a more uniform temperature distribution. As a result, introducing secondary air plays a significant role in optimizing combustion conditions, potentially enhancing the overall performance of the combustion system.