Importance

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Abstract

Disclosed are a liquefied hydrogen storage tank which is applicable to a storage facility storing a large amount of hydrogen in a liquefied state or a vehicle transporting liquefied hydrogen and a liquefied hydrogen storage tank, and a method for controlling the temperature of the liquefied hydrogen storage tank which can control the generation rate of boil-off gas from liquefied hydrogen and can maintain the liquefied hydrogen storage tank at a low pressure. The liquefied hydrogen storage tank is a storage container storing liquefied hydrogen, has an inner space including a lower space in which liquefied hydrogen is stored and an upper space in which a gas is stored, and includes a heat inflow prevention unit disposed in the upper space or at an interface between the upper space and the lower space and preventing inflow of thermal energy into the lower space through the upper space.

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First Claim