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Assessment of Analysis Methods for Dynamic Loading of Skirt Supported Vessels

[+] Author Affiliations
Agron E. Gjinolli, Cary D. Bremigan, Jason E. Dorgan

Universal Acoustic & Emission Technologies, Stoughton, WI

Paper No. PVP2016-63985, pp. V003T03A004; 11 pages
doi:10.1115/PVP2016-63985
From:
  • ASME 2016 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • Vancouver, British Columbia, Canada, July 17–21, 2016
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5039-8
  • Copyright © 2016 by ASME

abstract

Reciprocating engines and turbines continue to provide fuel efficient, clean and flexible motive power for many gas compression and power generation applications. Compression and/or power generation stations that were originally built in isolated areas are now in or near neighborhoods, requiring greater focus on acoustic performance. New emission regulations now require catalyst systems on most all gas engines. These new requirements have increased the complexity for a modern reciprocating engine exhaust system including both new installations and retrofit. While these engines are durable and flexible, they create many challenges for the exhaust system designer. The exhaust vessels are commonly installed on top of structural steel supports, self-supported directly on the foundation or skid via a shell skirt, (Figure 1).

This paper will discuss the analytical methods used to address these challenges. A combination of static, vibration-pulsation and dynamic structural analysis with specific attention to the seismic analysis of the skirt supported vessels, as well as acoustical design and flow modeling techniques are used to evaluate the design options. The overall objective of the system design will be discussed relative to the typical free standing vertical vessel/stack systems used at many compression and power generation stations.

Copyright © 2016 by ASME

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