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2014Research Report

GMRC Research Project: The Impact of Reciprocating Compressor Pulsations on the Surge Margin of Centrifugal Compressors

Klaus Brun, Ph.D., Southwest Research Institute (SwRI); Sarah Simons, SwRI; Benjamin White, SwRI

Centrifugal Compressors

Strong pressure pulsations into the suction or discharge of a centrifugal compressor can move its operating point into operational instability regions such as surge, rotating stall, or choke. This is of special operational and safety concern in mixed pipeline compressor stations where many centrifugal compressors operate in series or parallel with reciprocating compressors. Over the last 30 years, several authors have discussed the impact of piping flow pulsations on centrifugal compressor stability and specifically, on the impact on surge margin and performance

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Research Report