ITEMS

modern scholarly publishers in the finest tradition

	Search

ICHMT DIGITAL LIBRARY ONLINE

ISSN 961-91393-0-5

Individual price:

$246.00 (Must be sent to your home address)

You can order single issue or individual article. To purchase a single issue or an individual article as well as to view tables of contents and abstracts click on issue number.

Institutional price:

$518.00

Volumes per year:

various

For Online Access

Year 2004

• 3Thermal Sciences 2004
Proceedings of The ASME - ZSIS International Thermal Science Seminar II, Bled, Slovenia, June 13-16, 2004

1032 pages

Volume price - $246.00

The effect of surfactants on boiling heat transfer

Gad Hetsroni
Technion-Israel Institute of Technology

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

R. Rozenblit
Department of Mechanical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel

Z. Segal
Department of Mechanical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel

ABSTRACT

The presence of surfactant additives in water was found to enhance boiling heat transfer significantly. The boiling behavior of the solution depends on the concentration of the additive, its type and chemistry, wall heat flux, and the heater geometry.
Saturated and subcooled pool boiling of environmentally acceptable 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 surfactant solution are quite different from those of pure water. Specific features of boiling of surfactant solutions were revealed.