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Dynamic Analysis of Intercoolers and Tubular Reactors of LDPE Plants

[+] Author Affiliations
Riccardo Fani, Marco Passeri, Fabio Paperini

GE Energy, Oil & Gas, Florence, Italy

Paper No. PVP2011-57090, pp. 27-34; 8 pages
  • ASME 2011 Pressure Vessels and Piping Conference
  • Volume 5: High-Pressure Technology; Nondestructive Evaluation; Nuclear Engineering
  • Baltimore, Maryland, USA, July 17–21, 2011
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4455-7
  • Copyright © 2011 by ASME


Large-scale LDPE plants involving ultra-high pressure piping and potentially high-pressure pulsations need a detailed dynamic analysis. Special attention must be paid to the vibration of intercoolers and tubular reactors that represent the most critical part of the system, being mounted on tall steel structures. The long delivery of such components requires a proper selection at an early stage of the project. This implies the assessment of plant pulsation-induced forces, the subsequent definition of layout adjustments, of piping supports locations, type and supporting structures. The study must consider the actual jacketed tube configuration to avoid internal piping vibrations, which are difficult to be monitored and able to produce unexpected failures. The final review of the plant design should bring just minor adjustments.

Copyright © 2011 by ASME



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