Boiling Heat Transfer Characteristics with Highly Wettable Heated Surface under Forced Convection Conditions(<Special Issue>International Conferences on Power and Energy System)
スポンサーリンク
概要
- 論文の詳細を見る
Under forced convection and atmospheric pressure conditions, heat transfer characteristics were studied using an annulus channel of a heater rod with highly-wettable surface. Improvement of phase change heat transfer under boiling and condensation process requires that either liquid heated or vapor cooled can contact a heat transfer surface effectively, but either a vapor layer or a liquid film can be formed repeatedly on the surface during boiling and condensation processes. As oxide semiconductor materials are known to be highly wettable, TiO_2 was coated on a heater rod surface. The Leidenfrost temperature for the TiO_2 coated surface was higher than that for the uncoated surface. Under mass flux conditions from 600 to 1700kg/m^2s, the heater rod surface temperature at variable power conditions was measured. A higher heat flux at the point where the forced convection vaporization started and a larger critical heat flux were observed for the TiO_2 coated surface than that for the uncoated surface.
- 一般社団法人日本機械学会の論文
- 2004-05-15
著者
-
Kano Fumihisa
Toshiba Corporation
-
MITSUTAKE Toru
Toshiba Corporation
-
OOSATO Tetsuo
Toshiba Corporation
-
SAYANO Akio
Toshiba Corporation
-
AKIBA Miyuki
Toshiba Corporation
-
MOROOKA Shinichi
Toshiba Corporation
-
Mitsutake Toru
Toshiba
-
Morooka Shinichi
Toshiba
関連論文
- Boiling Heat Transfer Characteristics with Highly Wettable Heated Surface under Forced Convection Conditions(International Conferences on Power and Energy System)
- D108 Boiling heat transfer characteristics with highly wettable heated surface under forced convection conditions
- Effect of Radiation Induced Surface Activation on Quenching Condition
- Current Status of the Post Boiling Transition Research in Japan Integrity Evaluation of Nuclear Fuel Assemblies after Boiling Transition and Development of Rewettin Correlations