Advances in design and layout of Moss LNG carriers (eBook)

Published Date

January 2005

Advances in design and layout of Moss LNG carriers (eBook)

(Excludes any applicable taxes)

This paper outlines the results of development work carried out to make the Moss design even better able to meet the future challenges and demands. (20pp)

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The single barrier Moss Spherical Tank Design has a 30 years unparalleled record regarding safety, reliability and availability. Nevertheless, as new design tools become available the concept is continuously being re-examined in search of enhanced safety as well as improved technical and economical performance.

This paper outlines the results of development work carried out during the last few years. This work has resulted in design improvements that make the Moss design even better able to meet the future challenges and demands for safe and economical LNG transport in a world-wide market.

The following key areas are discussed:
- Larger Carriers: Large sized LNG projects where larger volumes of LNG are to be delivered to the same receiving terminal allows the use of larger LNG carriers. Are there technical limitations to the size of the carrier? Moss LNG carrier designs are presented.
- Alternative propulsion systems: The focus on transportation cost has made propulsion systems other than the steam plant interesting.
- Cargo handling: Introduction of the slow-speed diesel engine as propulsion plant has also pressed forward alternative handling of the boil off gas. The Moss® Reliquefaction System are presented.
- Ship vibrations: Slow-speed diesel engines expose the carrier to other vibration frequencies. A vibration analysis has therefore been performed for Moss type LNG carriers.
- Improved operational procedures: New cool-down estimates based on stress and cargo-handling calculations are presented.

Paper Delivered by:
Øivin Iversen
Roy-Inge Sørensen
(Moss Maritime)

Prepared for:
Gastech Bilbao 2005

For over 45 years, the Gastech Exhibition & Conference has been at the forefront of the international gas and LNG market. This world-renowned event is regarded as the most significant meeting place for gas and LNG professionals, where the global industry gathers to do business.

Gastech hosts major IOCs, NOC’s, global utility companies, EPC contractors, shipbuilders, pipeline companies, manufacturers, distributors, technology and service providers, all who play an active role in the global energy value chain.

Title: Advances in design and layout of Moss LNG carriers (eBook)
Product Code: 4433g091
Published Date: January 2005

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