Classification society American Bureau of Shipping (ABS) has provided ‘approval in principle’ to a new liquefied natural gas (LNG) containment concept developed by US-based Altair ProductDesign.
The new Cubic Donut Tank System (CDTS) LNG containment concept is designed to deliver increased cargo capacity while reducing loading and sloshing risks.
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Adapted from a patent filed 40 years ago, the CDTS concept draws on the initial design concept involving the construction of a near prismatic shape using 12 interconnected cylinders.
The interconnected cylinders are expected to create the structural efficiency of a spherical tank and the volumetric efficiency of a membrane tank.
ABS chairman, president and CEO Christopher J. Wiernicki said: “ABS continues to review innovative LNG designs, drawing on 50 years of experience in the safe handling, storage and transport of gas.
“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.”
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By GlobalDataThe CDTS is suitable for operations in heavy sea states at any fill level and its lower profile reduces hydrostatic loading, the company stated.
The CDTS concept is expected to deliver increased cargo capacity than both spherical and membrane containment system.
In July, ABS granted ‘approval in principle’ to a new Jensen Maritime-designed LNG bunkering articulated tug-barge (ATB) that will facilitate the transfer and use of small-scale LNG in places with limited infrastructure.
