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Journal of Enhanced Heat Transfer
インパクトファクター: 0.562 5年インパクトファクター: 0.605 SJR: 0.175 SNIP: 0.361 CiteScore™: 0.33

ISSN 印刷: 1065-5131
ISSN オンライン: 1026-5511

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v13.i2.70
pages 185-195

The Effect of Surfactants on Boiling Heat Transfer

Gad Hetsroni
Department of Mechanical Engineering, Technion- Israel Institute of Technology, Technion City, 32000 Haifa, Israel
M. Gurevich
Department of Mechanical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel
Albert Mosyak
Department of Mechanical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel
Elena Pogrebnyak
Department of Mechanical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel
Roman Rozenblit
Department of Mechanical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel
Zelik Segal
Department of Mechanical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel

要約

Boiling with surfactant additives is generally an exceedingly complex process, and it is influenced by a larger number of variables than the phase-change process of pure water. Besides the wall heat flux (or wall excess temperature), heating surface geometry, and bulk concentration of additives, the boiling behavior is also dependent upon interfacial properties, the nature of the additive, its chemistry, foaming, etc.
Saturated and subcooled pool boiling of two kinds of surfactant solutions were investigated experimentally. The kinetics of boiling (bubble nucleation, growth, and departure) was investigated by high-speed video recording. Boiling curves for various concentrations were obtained and compared. The results show that the bubble behavior and the heat transfer mechanism for a surfactant solution are quite different from those of pure water. Specific features of boiling of surfactant solutions were revealed.


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