水素エネルギー海上輸送のための基盤技術の開発研究 : 光学観測用液体水素実験装置の構築(商船・理工学)

概要

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In order to establish the storage and transportation system for a large quantity of liquid hydrogen, it is important to elucidate sufficiently thermal and hydraulic properties of liquid hydrogen; especially, an optical observation at pressures is essential to clarify correlation between these properties and phase transitions. Thus we designed and constructed a liquid hydrogen experiment facility (LHEF) with an observation system. The LHEF consists of a liquid hydrogen optical cryostat, a gas handling system, and vacuum pumps. The liquid hydrogen optical cryostat, 1500 mm in height and 300 mm in diameter, have a vacuum jacket, a liquid nitrogen space (10.0 liters), a liquid hydrogen space (13.6 liters), a sample space (3.8 liters), optical windows, and a needle valve. Evaporation rate of the liquid nitrogen and liquid hydrogen in the cryostat, and a temperature distribution in the sample space were measured. In addition, an optical observation of free surface of liquid hydrogen was made using a digital video camera. As a result of the test, the LHEF showed a good performance.
神戸大学の論文
2005-07-31