Deltamarin, the Finnish subsidiary of the Singapore-based AVIC International group, and Brevik Technology , an affiliate of Fincantieri’s Vard unit, have jointly developed a multigas carrier design, which they claim will change the nature of the gas carrying industry and allow conversion of dry bulk carriers to gas carriers.
“The concept combines in an unprecedented way the successful design of Deltamarin’s B.Delta and the new-generation patented cylindrical gas tanks by Brevik Technology,” Deltamarin said in a statement.
By combining the readily available and proven B.Delta design and separate cylindrical gas containment tanks, a cost-efficient and easy-to-build solution is now available to the gas carrier market, it said. The design can be used for LNG, LPG, liquefied energy gases (LEG), and ethane carriers. The patented containment design has already been approved by classification societies, Deltamarin said.
“Up to now gas carriers have been complex and expensive to design and construct,” said Brevik Technology’s managing director, Øystein Kristoffersen Sæther. “This is not the case anymore as Brevik Technology has developed cylindrical steel tanks, which are separate from the vessel hull.”
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 utilise the existing 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,” said Deltamarin’s managing director, Mika Laurilehto.
“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 yards capable of constructing such a vessel,” he said.
Deltamarin said the product is now available for smaller-scale gas carriers of 31,000 m³. It is planned that medium- and larger-scale vessels will also be provided with a similar design. Along with newbuildings, the design will also be available for retrofit, such as the conversion of a bulk carrier to gas carrier, it said.