HEAT-TRANSFER FROM HOT METAL-SURFACE TO AN IMPINGING WATER DROPLET IN TRANSITIONAL BOILING REGIME

被引：0

作者：

MORIYAMA, A

ARAKI, K

OKOUCHI, T

机构：

[1] Nagoya Inst of Technology, Materials, Research Lab, Nagoya, Jpn, Nagoya Inst of Technology, Materials Research Lab, Nagoya, Jpn

来源：

TRANSACTIONS OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1985年 / 25卷 / 03期

关键词：

ALUMINUM SILICON COPPER MAGNESIUM ALLOYS - Heat Transfer - COPPER AND ALLOYS - Heat Transfer - COPPER ZINC ALLOYS - Heat Transfer - STAINLESS STEEL - Heat Transfer - SURFACES - Heat Transfer;

D O I：

10.2355/isijinternational1966.25.198

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Transient measurements have been made of the cylindrical metal temperature upon impingement of a single water droplet on its circular surface preheated to a specified temperature of 300 to 450 degree C. Results are explained by an axisymmetric three-dimensional model. Numerical values of the heat transfer coefficient obtained with stainless steel rod correspond with interpolated results obtained by the stationary method with a thin circular plate of stainless steel. The heat transfer coefficient is a function of the thermal diffusivity of hot metal as well as the Weber number of the droplet and the surface temperature of the metal. 18-8 stainless steel, aluminum alloy (Al-Si-Cu-Mg), brass and copper were used. The surfaces of the latter two specimens were chromium-plated for oxidation protection had negligible resistance against heat transfer.

引用

页码：198 / 203

页数：6

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