SERVICE EXPERIENCE WITH 125,000 CUBIC METER LNG VESSELS OF SPHERICAL-TANK DESIGN

The development and record of start-up of the Indonesia-Japan liquefied natural gas (LNG) trade are described. Characteristics of the eight U.S.-flag 125,000 cubic meter LNG vessels used in the trade, seven of which are dedicated to the project, are provided. Preparations to place these vessels in service included extensive crew training and proper outfitting of the vessels. The procedures for gas trials, which were conducted in England and Massachusetts, are discussed. Voyage characteristics of the vessels in the trade are provided. Improvements to the vessels based upon service experience include relocation of cargo discharge line check valves, extension of cargo tank fill lines, modification to cargo pump motor insulation, and several other modifications to cargo and ballast system components, the main reduction gear lube oil spray system, and internal components of the boilers. Design of the cargo control system and reliability in electronic control systems are the most critical factors in determining the operational effectiveness of LNG vessels. The service experience of these vessels reinforces the experiences of other operators, demonstrating that LNG vessels can be operated safely and reliably.

• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Cuneo, J J
  • Gilmore, G A
  • Tornay, E G
• Publication Date: 1980

Media Info

• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Container tanks; Curricula; Design; Freight handling; Insulation systems; Liquefied gases; Liquefied natural gas; Safety; Ship operations; Shipboard personnel; Ships; Specialized training; Tankers; Training
• Old TRIS Terms: Lng crew training; Lng handling; Lng safety; Lng tank design; Lng tank insulation; Lng training courses; Ss aquarius
• Subject Areas: Design; Education and Training; Freight Transportation; Marine Transportation; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00324719
• Record Type: Publication
• Report/Paper Numbers: No. 4
• Files: TRIS
• Created Date: Feb 18 1981 12:00AM