Where is the highest gas pressure found in a turbine engine?

In a turbine engine, the highest gas pressure is found in the diffuser section, which is located at the exit of the compressor. This is because, after the air has been compressed by the compressor stages, its pressure increases significantly. The function of the diffuser is to convert the kinetic energy of the high-speed air exiting the compressor into pressure energy, which leads to an increase in static pressure. This high pressure is crucial as it ensures that when the fuel is injected into the combustion chamber, it mixes efficiently with the compressed air to facilitate optimal combustion.

Understanding this concept is essential for grasping how turbine engines operate, as the efficient transition of air pressure through the engine is critical for overall performance and thrust generation. The dynamics of pressure changes throughout the engine sections, especially the diffuser and combustion chamber, play a vital role in the efficiency and output of turbine engines.