| Project/Area Number |
25630060
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thermal engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KOMIYA Atsuki 東北大学, 流体科学研究所, 准教授 (60371142)
IGA Yuka 東北大学, 流体科学研究所, 准教授 (50375119)
OKAJIMA Junnosuke 東北大学, 流体科学研究所, 助教 (70610161)
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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 |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 電子機器冷却 / マイクロチャンネル / 超音速流 / 干渉計 / 光干渉計 / 圧縮性流体 |
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| Outline of Final Research Achievements |
To achieve an air cooling system high heat flux for the electronics cooling, the supersonic air flow with low temperature, which was generated by an adiabatic expansion, and micro-channel were applied to micro-heat exchanger. By using a microchannel, the boundary layer thickness decreases and convective heat transfer coefficient is improved. The density distributions of the supersonic air flow inside the micro-channel, which was impossible to measure by conventional technique, were visualized and measured by using phase-shifting interferometer. From the comparison between the results of experimental and calculated, the cooling performance was evaluated. Then, it was evaluated as 1.5 MW/m2 despite the sir cooling.
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