Centrifugal Compressors

Mr. Norman P. Lieberman, Process Improvement Engineering, Metairie, Louisiana, USA. This is Ashok from India. Explain please why compressors surge.

--S.R. Ashok, Process Engineer

 

Ashok – Read my book, Process Equipment Malfunctions (McGraw Hill Publisher) for my best explanation. Process Factors promoting surge are:

n  Low molecular weight

n  Rotor fouling

n  Higher temperature gas

n  Low suction pressure

n  High discharge pressure

n  Low flow

n  Closing spill-back

n  Suction throttling

--Regards, Norman Lieberman