What type of combustion chamber is mentioned for the combustion section?

• A. Can type
• B. Annular type
• C. Swirl type
• D. Cylindrical type

Answer: (B)

The combustion chamber mentioned for the combustion section is the annular type. This design is commonly used in gas turbine engines due to its efficient use of space and fuel. The annular combustion chamber features a cylindrical shape that surrounds the engine's core, allowing for a continuous flow of air through the chamber.

The design promotes uniform combustion because it provides a larger surface area for the mixing of fuel and air, leading to a more complete and efficient burn. This results in better performance and lower emissions compared to other designs. Annular type combustion chambers are particularly advantageous in terms of weight and overall engine design, as they can reduce the number of components needed, simplifying maintenance and enhancing reliability.

This design contrast with other types of combustion chambers, like can type, which consists of multiple isolated chambers. Each has its own set of pros and cons, but the annular type is generally favored in modern jet engines for the reasons outlined above.