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Posts Tagged ‘antisurge control’

Controlling Surge in Centrifugal Compressors

Posted in Process Optimization on Wednesday, May 15th, 2019. No comments yet
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Centrifugal and axial compressors can experience a potentially destructive condition known as surge. Emerson’s Mikhail Ilchenko describes it for me. Surge is a condition that occurs in compressors when the amount of gas they are trying to compress is insufficient for the size of the compressor and the blades lose their ability to transfer energy […]

Modeling and Controlling Compressor Surge

Posted in Simulation on Thursday, April 11th, 2019. No comments yet
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Some of the most perennially popular posts (say that fast 10 times!) here on the blog involve axial or centrifugal compressor surge control, or better stated—anti-surge control. In a paper presented at this year’s AIChE Spring Meeting, Emerson’s Greg McMillan—a member of the Process Automation Hall of Fame—presented Compressor Surge Modeling and Control. In his […]

Effective Compressor AntiSurge Control

Posted in Project Services on Tuesday, November 29th, 2016. One comment so far
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Centrifugal and axial compressors are at the heart of many production processes. Effective compressor automation and turbomachinery control not only impacts efficiency, but also safety, reliability, production throughput and energy usage. A complete turbomachinery control system consists of measurement devices, high speed controllers, control valves, guide vane drives, turbine governors and more. I spoke with […]

Surge Relief for Oil and Gas Liquids Pipelines

Posted in Final Control Element, Flow on Thursday, July 7th, 2016. 6 comments so far
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Authors: Rossella Mimmi and Dave Seiler Petroleum commodity releases can have serious consequences, so ensuring pipeline integrity is crucial for operators. Pipeline integrity is not just about preventing incidents, but is a holistic approach to the prevention, detection, and mitigation of these undesired commodity release such as surge. In this two-part series, we will provide […]

Anti-Surge Compressor Control in Action

Posted in Final Control Element on Friday, May 9th, 2014. 2 comments so far
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Compressor surge control, or better stated, anti-surge control, is always a popular subject here on the blog. Posts written years ago still remain highly viewed. Preventing surge is critical for centrifugal and axial compressors. Wikipedia defines it: Axi-symmetric stall, more commonly known as compressor surge; or pressure surge, is a complete breakdown in compression resulting […]