| Project/Area Number |
24760619
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Tohoku University |
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Principal Investigator |
SAITO YASUHIRO 東北大学, 工学(系)研究科(研究院), 助教 (50621033)
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| Research Collaborator |
KAWAKAMI Yoshiaki 高砂熱学工業株式会社
OKUMURA Masahiko 東北大学, 大学院工学研究科, 大学院生
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 水素吸蔵合金 / マイクロX線CT / Mm-Ni / Ti-Fe / 微粉化 / マイクロX線CT撮影 / La-Ni |
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| Research Abstract |
To investigate the safety of the storage tank of hydrogen storage alloys, the strain on the vessel wall and micro-scale structural change in the vessel along with the hydrogen absorption-desorption process were evaluated. The results of strain measurement indicated that the stress which caused at the bottom of the vessel increased with repeated hydrogen absorption-desorption process. The measurement of local packing ratios showed that alloy particles were concentrated at the lower parts of the packed bed with the absorption-desorption process. The observation results using an X-ray computed tomography showed that the pulverization property of the Ti-Fe alloys, which did not contain any rare earth elements, was different from that of the Mm-Ni. The image processing program for estimating the particle diameter distribution was developed and applied to Mm-Ni alloys, and indicated that the particle diameters in the packed bed decreased by hydrogen absorption.
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