| abstract |
The liquefied hydrogen carrier includes a hull, a tank mounted on the hull, and a tank including a tank body storing liquefied hydrogen and an insulating layer covering the tank body, a tank cover forming a holding space for accommodating the tank together with the hull, and holding A nitrogen supply device that supplies nitrogen to the space, a seawater supply device that supplies seawater to the holding space, a thermometer that measures the temperature of the surface of the insulation layer or the temperature inside the insulation layer, and the temperature measured by the thermometer is less than the set value In this case, a control device for controlling the seawater supply device is provided so that a seawater layer is formed on the bottom of the holding space. |