During the compressor operation, what does reducing air pressure achieve to prevent surging?

Maintaining control over pressure ratios is crucial in preventing surging during the operation of a gas turbine compressor. Surging occurs when there is a disruption in the airflow through the compressor, leading to unstable operation, performance loss, and potential damage. By reducing air pressure, the compressor can operate within a safer and more efficient pressure ratio, thereby ensuring a more stable airflow.

Controlling pressure ratios allows the compressor to maintain its ability to compress air effectively without dropping below a certain threshold where surging could occur. Optimal pressure ratios are important for achieving efficient performance and protecting the integrity of the compressor system. This stability in pressure helps ensure that the engine operates smoothly across varying conditions, which is vital for the overall performance and reliability of gas turbine engines.