What does 'turbulence' refer to in boiler combustion?

Turbulence in boiler combustion refers to the mixing of air and fuel. This mixing is crucial for efficient combustion, as it ensures that the fuel has adequate oxygen from the air to burn completely. When there is turbulence, the combustion process becomes more efficient because it promotes better contact between the fuel particles and the oxidizer, leading to more effective energy release and reduced emissions.

In the context of boiler operation, achieving optimal turbulence can help improve thermal efficiency and minimize unburned fuel, which can contribute to fouling and environmental concerns. Understanding the concept of turbulence allows operators to better manage combustion conditions for maximizing performance and safety in boiler systems.