2036 深海用水素貯蔵外圧容器の最適設計(J01-3 材料や構造の破壊/損傷/マルチスケール解析(3),J01 材料や構造の破壊/損傷/マルチスケール解析)

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  • 2036 Otpimal Design of Hydrogen Storage Pressure Housing for Underwater Vehicles

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Energy storage is an important technology for all equipment because environmental pressure is high, the temperature is 5 degrees Celsius or less, and it is unsuitable to the chemical reaction of the deep ocean. As for manned submersibles and unmanned vehicles, the necessary amount of electric power is enormous compared with mooring systems. Proton exchange membrane fuel cells which directly uses energy from the oxidation and reduction process to maintain the flow of electricity, closes up as new energy source for deep ocean vehicles instead of batteries. With normal temperature and normal pressure, hydrogen and oxygen exist as a gas. Recently, storing hydrogen with the alloy (called a metal hydride) came into practical use. The alloy can store hydrogen at low pressure and it is controlled quite simply. This paper presents optimal design of pressure housing to store metal hydride inside by finite element method and strain results obtained by high pressure tank test.

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