The Containment system is the arrangement on a ship for the containment of liquefied cargo. The containment systems are defined in IMO IGC Code as Type A, Type B, Type C and Membrane. CMIT develops systems for the following containers:
- IMO IGC Type A tanks are suitable for small/mid scale LNG carriers. Type A tanks are manufactured primarily with flat surfaces and have so a prismatic shape, which maximizes the volumetric efficiency of the hull. The maximum allowable tank design pressure in the vapor space for this type of system is 0.7 barg. This means that cargoes must be carried in a fully refrigerated condition at or near to atmospheric pressure. This is a self-supporting prismatic tank IMO independent Type A tank, placed in an insulated cargo hold with a full secondary barrier.
- IMO IGC Type C tanks are typically of cylindrical, spherical, bi-lobe or multi-lobe type, however, they may also be constructed with a prismatic shape, thus providing the most efficient solution to fit with existing volumes when converting an existing ship to LNG. These types of tanks are typically designed for LNG fuelled Ships, LNG bunker vessels and small-scale LNG Carriers thanks to the capacity of partially using the pressure build-up as means of BOG management.
LNG Carrier Solutions