Abstract: A prismatic tank for the containment of liquefied gas. The tank is formed of extruded materials and comprises an outer insulation layer.

Abstract: An insulation arrangement for an ocean-going ship comprising a modular arrangement of panels, each panel comprising a first cold layer and an opposing ambient layer and a volume therebetween arranged in use to be evacuated to create a vacuum.

Abstract: The invention relates to an insulation arrangement for a liquefied gas carrying ship wherein the ship has a primary barrier for containing a liquefied gas and a hull, and where the hull is spaced from said primary barrier to define a void between the hull and primary barrier. The hull is insulated with an insulation layer, said layer comprising a plurality of individual tessellating insulation panels.

Abstract: A system and method for treatment of water contaminated with organisms, in particular ballast water in ships, the system including a pump (5) pumping water from the sea trough a cavitation unit (7) and into one or more ballast tanks. The cavitation unit (7) will introduce a strong cavitation in the water, the cavitating action destroying any organic tissue and cell membranes of organisms present in the water. In the cavitation unit (7) hydrogen and steam are added to the water, while oxygen is removed. The oxygen-depleted water will exhibit a reduced corrosive effect on the ballast tanks.