A SEMI-MEMBRANE TANK SYSTEM FOR GAS SHIPS

The liquefied gas transported by Bridgestone Liquefied Gas Co, Ltd is done aboard ships utilizing a semi-membrane tank system. This system employs a flexible inner bag which actually holds the liquid gas and is supported by an outer membrane which provides insulation and contains any leaks. The system was devised by noting problems of stress and support in three small ships with this system or similar systems in use. Full sized ships have now been constructed with flexible inner cargo bags and outer semi-membranes. The advantages of these ships are noted and explained. Stresses have been observed and measured in the smaller ships. Welding is performed on both sides of the tank during construction and inspection is done by X-Ray.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/6660842
• Corporate Authors:

  Benn Brothers Marine Publications Limited

  Lyon Tower, 125 High Street, Colliers Wood
  London SW19 2JN,   England 
• Authors:
  • Yamamoto, K
• Publication Date: 1972-7

Media Info

• Pagination: p. 869-871
• Serial:
  • Shipping World & Shipbuilder
  • Volume: 165N
  • Issue Number: 387
  • Publisher: Seven Kings Publications, Limited
  • ISSN: 0037-3931
  • Serial URL: http://www.shippingworld.org/

Subject/Index Terms

• TRT Terms: Bulk carriers; Container tanks; Design; Electric insulating materials; Insulating materials; Liquefied natural gas
• Old TRIS Terms: Lng tank design; Membrane tank systems; Tank construction
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00035230
• Record Type: Publication
• Source Agency: United States Merchant Marine Academy
• Report/Paper Numbers: 1
• Files: TRIS
• Created Date: Oct 27 1972 12:00AM