2012 Fiscal Year Final Research Report
Study on Fabrication of Hydrophobic and Hydrophilic Micro-structured Condensing Surface and Enhancement of Condensation Heat Transfer
| Project/Area Number |
23860063
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Thermal engineering
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| Research Institution | Ube National College of Technology |
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Principal Investigator |
TOKUNAGA Atsushi 宇部工業高等専門学校, 機械工学科, 助教 (20609797)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 熱工学 / 滴状凝縮 / MEMS / 伝熱促進 / マイクロ・ナノ伝熱 |
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| Research Abstract |
The micro- and nano- scale phase change phenomena and cooling technology are more important because the MEMS technology develops rapidly in the fields of electro- devices such as CPU. Therefore, the functionalized heat transfer surface is made in order to realize the enhancement of condensation heat transfer. The hybrid-condensing surface with hydrophobic and hydrophilic patterns is fabricated in order to remove the grown droplets. This is because in the dropwise condensation on the hydrophobic surface, the heat transfer coefficient is determined by the departing droplet size. In experimental results, the heat transfer coefficients on the hybrid-condensing surface show the larger value than the filmwise condensation heat transfer.
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