(146e) Acoustic Induced Vibration in Temporary Piping for Super High-Pressure Steam System Cleaning
AIChE Spring Meeting and Global Congress on Process Safety
2023
2023 Spring Meeting and 19th Global Congress on Process Safety
Global Congress on Process Safety
GCPS Joint Session: Case Histories and Lessons Learned
Wednesday, March 15, 2023 - 4:00pm to 4:30pm
During the 2020 commissioning of a chemical plant in Gregory, Texas a reducer in the temporary pipe system downstream of a sacrificial valve developed a fatigue crack while steam blowing (cleaning) the super high pressure steam system. The investigation team identified the root cause as a combination of Acoustic Induced Vibration (AIV) and Flow Induced Vibration (FIV) with additional findings that management of change (MOC) may have been insufficient. This paper discusses causes and effects of AIV and FIV, mitigations, and provides general guidance for future steam blows based on lessons learned.
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