Study on nucleate boiling heat transfer by measuring instantaneous surface temperature distribution by infrared radiation camera
小泉 安郎; 高橋 和希*
Koizumi, Yasuo; Takahashi, Kazuki*
Pool nucleate boiling heat transfer experiments were performed for water at 0.101 MPa to examine the elementary process of the nucleate boiling. Heat transfer surface was made from a copper printed circuit board. Direct current was supplied to heat it up. The Bakelite plate of the backside of a copper layer was taken off at the center portion of the heat transfer surface to expose the back side of the copper layer. The instantaneous variation of the backside temperature of the heat transfer surface was measured with an infrared radiation camera. Bubble behavior was recorded with a high speed video camera. In the isolated bubble region, surface temperature was uniform during waiting time. When boiling bubble generation started, a large dip in the surface temperature distribution was formed under the bubble. After the bubble left from the heat transfer surface, the surface temperature distribution returned to former uniform distribution. Surface temperature was not affected by the bubble generation beyond 1.8 mm from the center of the bubble. In the intermediate and high heat flux region, the variation of surface temperature and heat flux did not become large even though the heat flux increased. The heat flux variation was close to that at the isolated boiling region.
使用言語 : English
掲載資料名 : Proceedings of 15th International Heat Transfer Conference (IHTC 2014) (USB Flash Drive)
ページ数 : 13 Pages
発行年月 : 2014/08
出版社名 :
発表会議名 : 15th International Heat Transfer Conference (IHTC 2014)
開催年月 : 2014/08
開催都市 : Kyoto
開催国 : Japan
特許データ :
論文URL :
キーワード : Boiling; Heat Transfer; Thermal Engineering
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 :
登録番号 : BB20141352
抄録集掲載番号 : 42001340
論文投稿番号 : 14980
Accesses  (From Jun. 2, 2014)
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