FOR LNG--A CONCRETE ANSWER

The suggestion that LNG carriers could be constructed of concrete with economic, technical and safety advantages over the existing steel hull designs was made by Carvill in 1972. In pursuance of this idea, a research and development programme was carried out by Dytam Tanker GmbH, a joint company set up by Tampinex Oil Ltd and the German firm of Dyckerhoff and Widmann AG, Munich. The study, which is summarized in this paper was for a 128,000 cu m LNG gas carrier with a monolithic concrete hull reinforced longitudinally and transversely by stressed and non-stressed steel rods. The cargo tanks are an integral part of the hull structure and the tank transfer bulkheads are also made of concrete. The vessel has received full conceptual and detail approval of the entire hull structure by Lloyd's Register, single hull concept approval by the U.S. Coast Guard and complies with IMCO requirements. In addition to giving details of the strength calculations, safety features and operation of the vessel, the paper presents the results of an economic analysis of capital investment and annual operational cost over the twenty year life of the vessels compared with costs for a steel ship. Over from: BSRA as No. 46,629.

• Corporate Authors:

  Gastech Exhibitions Limited

  ,    
• Authors:
  • Stanford, A E
  • Finsterwalder, K
  • Carvill, W C
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Capital investments; Chemical tankers; Concrete; Design; Design standards; Economic analysis; Hulls; Liquefied gases; Liquefied natural gas; Safety engineering; Ship operations; Tankers; Vehicle design
• Identifier Terms: International Maritime Consultative organization
• Uncontrolled Terms: Ship design
• Old TRIS Terms: Concrete hulls; Imco design standards
• Subject Areas: Design; Economics; Marine Transportation;

Filing Info

• Accession Number: 00170768
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM