Study on Accurate Prediction of Heat Transfer Characteristics of Mist Cooling : Effects of Surface Wettability

• OHKUBO Hidetoshi

  Institute of Industrial Science, University of Tokyo

• NISHIO Shigefumi

  Institute of Industrial Science, University of Tokyo

抄録

In the present experiments, a transient method was used to study the heat transfer characteristics of mist cooling. The effects of surface wettability on the heat transfer coefficient and the minimum temperature of the high-temperature region, which corresponds to the film boiling region, were investigated. The heat transfer surface was made of aluminum and was 15mm in diameter and 2mm in thickness. The wettability of the heat transfer surface was varied by surface treatment. It was found that with higher surface wettability, the minimum temperature required is also higher. The experimental conditions of mist flow were as follows: the air velocity V_a was 20m/s; the temperature of the water droplet T_l was 21℃; and the volumetric droplet flow rate D was in the range of 0.00057 to 0.00472m^3/m^2s.

収録刊行物

• JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties

  JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 33 (2), 326-332, 1990-05-15

  一般社団法人日本機械学会

キーワード

• Thermal Engineering
• Heat Transfer
• Mist Cooling
• Cooling Curve
• Heat Treatment
• Surface Wettability

詳細情報

• CRID: 1570291227223688192
• NII論文ID: 110002492510
• NII書誌ID: AA10680596
• ISSN: 09148817
• 本文言語コード: en
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