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Prêt pour le GNL flottant : qualification des échangeurs de chaleur hélicoïdaux.

Ready for floating LNG: qualification of spiral wound heat exchangers.

Auteurs : LEX T., OHLIG K., FREDHEIM A. O., et al.

Résumé

A floating LNG project has several technical challenges. One is the influence of marine tilt and motion on the thermal and hydraulic performance of the spiral-wound LNG heat exchanger (SWHE). To learn more about the performance of the SWHE at different tilt angles and movements, two test facilities have been erected in a laboratory facility, one small scale test plant to study adiabatic fluid flow behaviour and one semi-industrial sized test facility to study thermal and hydraulic performance. The design, construction and experimental test program were conducted within the Statoil-Linde LNG Technology Alliance. For the test program, the test heat exchanger has been positioned on a hydraulic, movable platform to represent accelerations at rough sea conditions. The tests were performed at a wide range of operational conditions. Based on the experimental results a CFD model for calculation of the shell-side liquid distribution has been developed. From this project, data describing the influence of permanent tilt and one-dimensional oscillation on thermal and hydraulic behaviour has given sufficient information and knowledge to design the SWHE for FLNG. A long term test on the mechanical behaviour has also been completed to verify the mechanical design procedures.

Détails

  • Titre original : Ready for floating LNG: qualification of spiral wound heat exchangers.
  • Identifiant de la fiche : 2008-1146
  • Langues : Anglais
  • Source : LNG 15. Proceedings of the 15th International Conference and Exhibition of Liquefied Natural Gas.
  • Date d'édition : 24/04/2007

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