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CFD Analysis of a Cryogenic Pressure Vessel Hydrogen Leak

[+] Author Affiliations
E. R. Ledesma-Orozco, A. Salazar-Garibay

Universidad de Guanajuato, Salamanca, GUA, México

S. M. Aceves, F. Espinosa-Loza

Lawrence Livermore National Laboratory, Livermore, CA

Paper No. IMECE2013-65391, pp. V015T16A029; 6 pages
doi:10.1115/IMECE2013-65391
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 15: Safety, Reliability and Risk; Virtual Podium (Posters)
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5644-4
  • Copyright © 2013 by ASME

abstract

This paper reports the numerical simulation of the sudden hydrogen release from a cryogenic pressure vessel due to a broken tube where hydrogen vents into the vacuum jacket. Real gas effects are considered and the specific “vessel within vessel” geometry of cryogenic vessels. For practical reasons, this study focuses on hydrogen release from 34.5 MPa, with initial temperatures of 62 K and 300 K. The high pressure vessel internal volume is 151 L. Pressure versus time graphs indicate that the vacuum jacket resist the pressure build up until reaching the rupture disc setting to finally release into the atmosphere, and a comparative of this result with the ASME Code burst pressure calculation is presented.

Copyright © 2013 by ASME

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