THE DEVELOPMENT OF A POLYURETHANE FOAM INSULATION FOR MEMBRANE TYPE LNG SHIPS

A description is given of a cryogenic fluid containment system designated Mark III, which has been developed for future LNG carriers. Mark III has been granted conceptual approval complete by the U.S. Coast Guard based in part on some of the test and analysis work highlighted herein. A very similar cryogenic containment system is being proposed for LNG terminals, floating or onshore. The current Mark I system has been installed on LNG/LPG carriers such as the Descartes. The primary development consists of the replacement of balsa and polyvinyl chloride insulation by rigid structural polyurethane foam. No changes are made in the basic design of the proven stainless steel waffle membrane primary barrier, which is virtually stress free and lies between the LNG and the insulation. Insulation development which will be discussed includes chemical formulation, foam-in-place joint technology, finite element thermal/structural analyses, material thermal/structural physical property characterization testing, thermal conductivity aging tests, creep tests, and thermal cycle or fatigue testing.

  • Corporate Authors:

    General Electric

    Marine Turbine & Gear Engineer, 1100 Western Ave
    Lynn, MA  USA  01910

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  USA  07306-2907
  • Authors:
    • Cunningham, C R
    • Roni, J
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: 57 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00196569
  • Record Type: Publication
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM