Development of Ice Class Arc4 MK III™ Type LNG Carrier

It is a very challenging work to design 208K Arctic LNG carrier, since LNG carrier requires high reliability for the structural safety and the environment of Arctic region is known to be very severe. Therefore, special attention should be paid for the verifying the structural safety of LNG carrier particularly with regard to LNG leakage. In this paper, the safety of the hull structure and cargo containment system of 208K MK III™ type LNG carriers with Arc4 is investigated based on the direct calculation of ice loads as well as wave loads. Several scenarios like design ice load, accidental ice load, ramming, entrapment and extreme wave are considered. From the whole investigation, it is clear that the developed vessel — 208K MK III™ type LNG carrier with RMRS Ice class Arc4 — has enough strength and is safe to be operated in Arctic region.Copyright © 2008 by ASME