Bubble dynamics of boiling of propane and iso-butane on smooth and enhanced tubes

被引：17

作者：

Chen, YM ^{[1
]}

Groll, M ^{[1
]}

Mertz, R ^{[1
]}

Kulenovic, R ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Nucl Technol & Energy Syst, IKE, D-70569 Stuttgart, Germany

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2004年 / 28卷 / 2-3期

关键词：

D O I：

10.1016/S0894-1777(03)00036-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Visualization experiments were carried out for nucleate pool boiling of propane and iso-butane on a horizontal smooth tube and two kinds of structured enhanced tubes. Some bubble dynamic parameters were measured. Comparisons were made between the smooth tube and the enhanced tubes for bubble growth rate, departure diameter, frequency, active site density, rise velocity and latent heat transfer. The effects of physical properties on the bubble dynamics are discussed. The present experimental results are compared with the model of Haider and Webb, relatively good agreement is found for enhanced surfaces. The augmentation mechanisms of heat transfer from structured enhanced tubes are also discussed. (C) 2003 Elsevier Inc. All rights reserved.

引用

页码：171 / 178

页数：8

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