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Abstract
The operating range of process centrifugal compressors is limited by an instability range commonly called “surge”, which occurs during low flow or high head conditions and can result in extensive damage. There are high expectations to improve anti-surge systems of process compressors to increase reliability as well as energy efficiencies and performance. Practical recommendations on anti-surge system sizing, selection, configuration and design are presented. Considerations regarding stall, choke, dynamic studies, anti-surge loop configuration, recycle cooling, anti-surge valve, instruments and anti-surge system parameters are also discussed. Case studies are presented.
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Notes on contributors
A Almasi
Amin Almasi is a rotating machine consultant in Brisbane, Australia. He is chartered professional engineer of Engineers Australia (MIEAust CPEng – Mechanical) and IMechE (CEng MIMechE). He has a MSc and BSc in mechanical engineering and is a Registered Professional Engineer in Queensland. He specialises in rotating machines, including centrifugal, screw and reciprocating compressors, gas turbines, steam turbines, engines, pumps, subsea, offshore rotating machines, LNG units, condition monitoring, and reliability. Amin is an active member of Engineers Australia, IMechE, ASME, CMVI, Vibration Institute, SPE, IEEE and IDGTE. He has authored more than 60 papers and articles dealing with rotating equipment, condition monitoring, offshore, subsea and reliability.