| 摘要 |
When hydrogen is taken out, para-hydrogen having a low energy is converted into ortho-hydrogen having a high energy, and a cooling effect of endothermy of the para-ortho conversion is utilized for maintaining the temperature within a hydrogen storage device (10) low. For accomplishing such a system, there is provided a hydrogen storage device (10) for storing a liquid hydrog en (21), wherein a porous magnetic body serving as a para-ortho conversion catalyst is arranged in a hydrogen circulation opening (13). |
