NHK SPRING-DEVELOPED WET WALL INSULATION SYSTEM

A second generation containment system, for use aboard liquefied gas carrying vessels, is described. This containment system utilizes no special metals or alloys, rather it consists of interior and exterior insulations, the interior made of polyurethane foam and glass fiber layer, and the exterior consisting of a second layer of foam and plywood pallet. This insulation has been tested with liquid nitrogen at minus 196 degrees, and has come through successfully. Cost savings, up to ten percent of the vessel's cost, other advantages of the system including; no special requirements imposed on tanker design, no special steels required, and lower tanker operating costs, among others, are listed, and the basic system design are all given and discussed in the article.

• Corporate Authors:

  Tokyo News Service Limited

  10 Ginza Nishi, 8-chome, Chuo-ku
  Tokyo,   Japan 
• Publication Date: 1974-3

Media Info

• Pagination: 2 p.
• Serial:
  • Zosen
  • Volume: 18
  • Issue Number: 12
  • Publisher: Tokyo News Service Limited

Subject/Index Terms

• TRT Terms: Container tanks; Containing equipment; Design; Foams; Insulating materials; Insulation systems; Liquefied gases; Liquefied natural gas; Tankers
• Old TRIS Terms: Foam insulation; Lng containment systems; Lng insulation; Lng tank design
• Subject Areas: Design; Marine Transportation; Materials;

Filing Info

• Accession Number: 00056714
• Record Type: Publication
• Source Agency: National Maritime Research Center, Kings Point
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM