| Project/Area Number |
24760156
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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 |
Thermal engineering
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| Research Institution | Kyushu University (2014)
Tohoku University (2012-2013) |
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Principal Investigator |
MIYATA Kazushi 九州大学, 工学(系)研究科(研究院), 助教 (00610172)
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| Research Collaborator |
OHIRA Katsuhide 東北大学, 流体科学研究所, 教授 (30375117)
MORI Hideo 九州大学, 大学院機械工学部門, 教授 (70150505)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 核沸騰 / 限界熱流束 / 伝熱促進 / 液体窒素 / プール沸騰 / 熱伝導率 / 微細周期構造 / 微細くぼみ |
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| Outline of Final Research Achievements |
For the development of a nucleate boiling heat transfer surface which enhances critical heat flux compared with a normal flat surface, the heat transfer surfaces composed of a high and a low thermal conductivity materials were produced and examined in this study. The two combinations of a high and a low thermal conductivity materials tested in this study were copper and SUS, and copper and epoxy putty.
The developed surfaces achieved higher critical heat fluxes than that of a copper flat surface. Furthermore, the developed surfaces enhance the critical heat flux at higher rate than the enlargement ratio of the heat transfer area. Therefore, a good heat transfer and a relatively low pressure drop is expected by adopting the developed surfaces to cooling devices which use forced convective boiling.
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