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Evaluation of Response of a Floating Cryogenic Hose in Offloading Operation Between FLNG Unit and LNG Carrier in Tandem

[+] Author Affiliations
André Luís F. Ferreira, Celso K. Morooka

University of Campinas - UNICAMP, Campinas, São Paulo, Brazil

Paper No. OMAE2015-42159, pp. V05AT04A058; 10 pages
doi:10.1115/OMAE2015-42159
From:
  • ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5A: Pipeline and Riser Technology
  • St. John’s, Newfoundland, Canada, May 31–June 5, 2015
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5651-2
  • Copyright © 2015 by ASME

abstract

Static and dynamic response of a floating cryogenic hose is analyzed in offshore offloading of LNG, taking into account FLNG unit and LNG carrier in tandem. Response of the hose in the operation depends on several parameters involved. Among them, hose overall length, span, buoyancy and position of the hose ends (terminations at the vessels) relative to the sea surface are considered important, and they are investigated. Environmental loads as well as vessels motions are considered in the computational simulations achieved to evaluate the response of the hose in operation. Parametric variation is conducted in order to observe sensitivity of the hose to parameters aforementioned. Forces and moments at hose terminations (hose ends) as well as effective tension and curvature along hose length are observed. Critical zones of the hose (as its sections close to sea surface) are analyzed with details and main remarks are addressed.

Copyright © 2015 by ASME

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