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A new multigas carrier design uses the successful B. Delta bulk carrier hull from Finland’s Deltamarin to carry gas in new-generation cylindrical gas tanks developed by Vard affiliate Brevik Technology AS.
The design can be utilized for LNG, LPG, LEG and ethane carriers.
“Up to now gas carriers have been complex and expensive to design and construct. This is not the case anymore as Brevik Technology has developed cylindrical steel tanks, which are separate from the vessel hull,” says Brevik Technology’s Managing Director Øystein Kristoffersen Sæther.
Brevik Technology’s independent gas carrying method challenges the traditional and expensive way of building the vessel and the tanks as one entity. The patented containment design has already been approved by classification societies.
The cylindrical tank design allows the tanks to expand in all directions without putting stress on the vessel hull. The independent containment system, which can be built into a vessel as is, results in better possibilities to utilize the existing well-proven ship design.
“This is where the shipowner can get significant benefits by choosing a readily available and highly efficient B.Delta hull design already proven in operation”, says Deltamarin’s Managing Director Mika Laurilehto.
The design based on the B.Delta is actually a bulk carrier design equipped with cylindrical tanks for the gas cargo.
“As a bulk carrier, the vessel is easier and cheaper to build compared to a traditional gas carrier, and there may be many new potential shipyards capable of constructing such a vessel,” says Mr. Laurilehto.
The new design is now available for the market for smaller-scale gas carriers of 31,000 cu.m, with similar designs for medium- and larger-scale vessels to follow.
The design will also be available for retrofit vessels, such as the conversion of a bulk carrier to gas carrier.
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