Economic Design Concept for Small LNG Carriers (eBook)

Published Date

January 2006

Economic Design Concept for Small LNG Carriers (eBook)

$19.31
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The papers describes the design approaches for small LNG carriers and the background to their consideration. (7pp)

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Until a few years ago LNG ships have been fairly standardized with respect to the size of approx. 140,000 m3, the propulsion system utilizing steam turbines and the boil-off gas handling by burning the gas in the steam boilers. During recent years the LNG shipping industry has moved to increasing transportation capacities of up to 270,000 m3 and to diversified propulsion systems of better efficiency including also diesel engines combined with boil-off gas reliquefaction.

Further to these developments the LNG logistic chain suggests new market segments for smaller ships and small receiving terminals. Requirements for "clean fuel" will promote the utilization of LNG for small scale and medium scale applications, eg for remote industrial areas or islands.

Furthermore projects of short sailing times are under discussion, which will need smaller vessels, eg LNG import to Cyprus from Mediterranean suppliers. An Australian company has been developing projects of up to 30,000 m3 transport capacity. A Japanese yard is currently building an LNG carrier of 19,000 m3 with spherical tanks made of aluminum alloy. Coastal transportation of LNG with a very small LNG ship of only 1,000 m3 has recently been established in Norway due to the lack of a gas pipeline grid. For the same project a second vessel of 7,500 m3 is under construction, for which the design and the cargo handling system including cargo tanks is supplied by TGE. Two very small LNG carriers of 2,500 m3 are in service since 2004 and 2006 for coastal LNG transportation in Japan.

The LNG shipping industry is also expecting an increasing market for spot cargoes. In combination with the above mentioned developments LNG ships will have to be designed also for the transportation of smaller parcels by partial filling.

Paper Delivered by:
Dr. Klaus Dieter Gerdsmeyer (TGE Gas Engineering)

Prepared for:
Gastech Abu Dhabi 2006

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: Economic Design Concept for Small LNG Carriers (eBook)
Product Code: 4433g127
Published Date: January 2006

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