Theory and Construction of Gas Turbine Engines Practice Test 2026 – The Comprehensive All-in-One Guide to Exam Success!

A plenum chamber is typically found in a double entry compressor. This type of compressor is designed to receive air from two separate points, allowing it to maintain pressure and enhance performance by providing a more uniform airflow to the engine’s combustion chamber. The plenum chamber serves as a reservoir that helps balance the airflow, ensuring optimal mixing of fuel and air.

In a double entry compressor, the plenum chamber effectively routes air entering from both entries to the compressor. This configuration is particularly advantageous in gas turbine engines where balanced air distribution is crucial for efficiency and power output.

While other engines may utilize different types of compressive mechanisms, they do not utilize a plenum chamber in the same way as a double entry compressor does. This distinct feature of the double entry design highlights its effectiveness in managing airflow for enhanced engine performance.