Difuusioonipõlemise

Difuusioonipõlemine, also known as diffusion flame or diffusion flame combustion, is a type of combustion process where a fuel and an oxidizer are mixed and burned in a non-premixed state. This contrasts with premixed combustion, where the fuel and oxidizer are mixed before combustion.

In a diffusion flame, the fuel and oxidizer are introduced separately and allowed to mix and react as they flow towards each other. This process is commonly observed in gas-fired furnaces, boilers, and other industrial combustion systems. The flame structure in diffusion flames is typically characterized by a reaction zone where the majority of the combustion occurs, surrounded by a preheated zone where the reactants are mixed and heated before entering the reaction zone.

The combustion efficiency in diffusion flames can be influenced by various factors, including the flow rates of the fuel and oxidizer, the geometry of the combustion chamber, and the initial temperature of the reactants. Proper design and operation of diffusion flames are crucial for optimizing performance, minimizing emissions, and ensuring stable combustion.

Diffusion flames are widely used in industrial applications due to their simplicity and robustness. However, they can also be more prone to instability and incomplete combustion compared to premixed flames. Advanced control strategies and design improvements are often employed to mitigate these issues and enhance the overall performance of diffusion flame systems.