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Compressor Simulation

One of the traditional simulation studies is to analyse the performance of compressors. Studies aim to prevent surging and stonewall and to ensure satisfactory start-up and shutdown operations.

Compressor Surge

Surging (sometimes also called Pressure Surge) occurs when the pressure ratio becomes too high and/or the flow falls too low. This causes the compressor to stall, temporarily losing forward flow. Unless actions are taken, this stall is followed by a resumption of flow and a dangerous cycle begins that will cause severe vibration and damage. Some tests show that the surging occurs in cycles with frequencies of 1-2Hz and the damage and vibration is well reported.

Control Systems

There are many proprietary anti-surge control systems and the suitability and set-up of any anti-surge systems can be investigated during design stage.