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ABS Grants AIP to Altair's LNG Containment Concept

 ABS has granted Approval in Principle (AIP) to Troy, Mich., based Altair for the Cubic Donut Tank System (CDTS) LNG containment concept. It is an innovative 'cubic donut' tank system design will deliver increased cargo capacity while reducing loading and sloshing risks.The CDTS concept is adapted from a patent first filed nearly 40 years ago. The principle behind the initial design concept is the construction of a near prismatic shape using 12 interconnected cylinders to create the structural efficiency of a spherical tank and the volumetric efficiency of a membrane tank. "ABS continues to review innovative LNG designs, drawing on 50 years of experience in the safe handling, storage and transport of gas," says ABS Chairman, President and CEO Christopher J. Wiernicki."As designers apply new solutions to gas carrier challenges, ABS will support this process with approvals that enable LNG shipping to move forward in safety."https://www.youtube.com/watch?v=sUohn104zKMAccording to Altair ProductDesign, the CDTS retains the advantages of the original concept, including greater relative cargo capacity than either a spherical or membrane containment system, which enables a vessel with a shorter length but comparable draft for the same deadweight. Altair designers say the CDTS is suitable for operations in heavy sea states at ...

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