Study on wetting criterion during liquid-solid contacton hot surface
| Project/Area Number |
22560204
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thermal engineering
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| Research Institution | Saga University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 沸騰熱伝達 / 非定常遷移沸騰 / 高速温度測定 / ぬれ / 液滴 / 遷移沸騰 / 固液接触 / 非定常表面温度計測 / 熱伝導逆問題 / 不均質核生成 / 表面温度計測 |
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| Research Abstract |
Rewetting on a hot surface is an essential phenomenon governing inception of rapid cooling with boiling heat transfer. A fast response local surface temperature measurement technique has been developed to capture the transient boiling heat transfer during impact of a single ethanol droplet on a hot surface being much higher than the boiling temperature. Typical liquid-solid contact time is below 10 milliseconds. Transient boiling heat transfer processes with/without rewetting phenomenon were elucidated with visual observations by a high speed video camera synchronized with the local heat transfer measurement.
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Report
(4 results)
Research Products
(17 results)
