| Project/Area Number |
25820453
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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 |
Nuclear engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
SAKASEGAWA Hideo 独立行政法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 副主任研究員 (00566250)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | フィルター / 低融点合金 / 焼結金属 / 原子炉 / 自動ベント機能 / コールドトラップ効果 |
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| Outline of Final Research Achievements |
The malfunction of venting system was a reason which worsened the accident of Fukushima Daiichi nuclear power plant in 2011. Consequently, the improvement of venting system is important as a safety measure in nuclear power plants. The purpose of this research is to develop a porous metallic filter impregnated with a low-melting-point alloy. A filter made of Oxide Dispersion Strengthened steel, which has an attractive corrosion resistance and a superior high temperature strength, impregnated with a Sn-Bi alloy was developed. This impregnated filter becomes porous at temperatures higher than the melting point of the low-melting-point alloy and it can automatically vent the reactor pressure vessel. In addition, the external emission of radioactive iodine and cesium can be reduced by the effect of cold trap.
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