To satisfy the transportation requirements of the new trade, Burmah contracted to charter seven 125,000 cu m LNG carriers to be constructed at the Quincy Shipyard of General Dynamics Corporation, the first purpose-built LNG ships to be built at a U.S. shipyard. The ships incorporate the Moss Rosenberg self-supporting spherical tank LNG containment system. Although the comparative newcomer among the four major LNG tank types, the Moss Rosenberg design incorporates a number of features which has made it the choice of containment systems in one-half of the LNG carriers ordered in recent years. The simple geometrical shape of the tanks make them not only particularly wellsuited to series production but also enables extensive stress analysis of the tank and related hull structure, allowing a unique degree of safety to be designed into the system. Now, more than with any othe LNG project, the Indonesia/Japan scheme is permitting the buildup of valuable operational experience with the Moss Rosenberg tanks. The containment systems on all ships in service have peformed admirably to date. As with any new technology, operational difficulties with some of the equipment are to be expected. The Burmah project has been no exception. This paper, after reviewing project background and ship construction, goes on to examine the operational problems encountered and remedial steps taken during the first 18 months since start-up. Finally, the importance of an effective crew training program for safe and efficient gas carrier operation is outlined.

Media Info

  • Features: References;
  • Pagination: p. 1-52

Subject/Index Terms

Filing Info

  • Accession Number: 00322614
  • Record Type: Publication
  • Report/Paper Numbers: Paper 7, Session 3 Conf Paper
  • Files: TRIS
  • Created Date: Nov 29 1980 12:00AM