| 摘要 |
PURPOSE:To obtain a hydrogen storage apparatus by which the quantity of stored hydrogen can be known easily by filling a receptacle with at least two or more kinds of hydrogen storage alloys different in hydrogen equilibrium at a certain fixed temperature. CONSTITUTION:In case of combining two or more kinds of hydrogen storage alloys different in hydrogen equilibrium, an alloy for occluding hydrogen and an alloy for detecting the quantity of hydrogen are respectively provided in a small quantity and a large quantity. The temperature-equilibrium pressure characteristic as well as the hydrogen storage capacity depends on the composition, combination and the quantity of alloys of hydrogen storage alloys used. Accordingly it is necessary to previously measure the capacity of a storage apparatus and the temperature-equilibrium pressure characteristic of alloy to be charged according to the estimated used conditions prior to a practical use. At the time of occluding hydrogen, the hydrogen pressure is measured by a pressure gauge, and the measured value is compared with an occlusion characteristic curve (a) to know the quantity of stored hydrogen. At the time of discharging hydrogen, the residual quantity of hydrogen can be known by using a discharge characteristic curve (b). |
