How do fuel nozzles function in the combustion process?

Fuel nozzles play a crucial role in ensuring efficient combustion by evenly spraying fuel throughout the combustion chamber. This atomization process allows for a fine mist of fuel to be created, which significantly enhances the mixing of fuel with the air. Properly atomized fuel and air mixture results in a more complete and efficient burning process, leading to optimized engine performance and reduced emissions.

In contrast to the other functions suggested in the choices, igniting the fuel is typically the role of the ignition system rather than the fuel nozzles. Routing gas to the turbines involves components that handle the exhaust gases post-combustion, and transferring flame between combustion chambers is a function that does not occur in standard combustion processes within engines designed with separate combustion chambers. The primary focus of fuel nozzles is their ability to deliver fuel in a specific manner to promote the best possible combustion conditions.