NDLI: Wide range parametric study for the pool boiling of nano-fluids with a circular plate heater

Content Provider	Springer Nature Link
Author	Jo, B. Jeon, P. S. Yoo, J. Kim, H. J.
Copyright Year	2009
Abstract	The characteristics of boiling and critical heat flux (CHF) behavior of nano-fluids with alumina and silver nano-particles suspended in de-ionized water (pure water) were studied with circular plate heaters in the present study. Enhancements of CHF in nano-fluids in the wide range of particle sizes and concentrations were compared with those in pure water. Also, the effects of the particle deposition on CHF enhancement were investigated. All experiments were performed at the atmospheric pressure condition. The results show that the measured boiling curves in nano-fluids were shifted to the right and CHF were significantly enhanced for different nano-particle sizes and concentrations. The CHF of nano-fluids was increased as the size of the nano-particles decreased. On the other hand, nano-particle concentration value showing the maximum CHF had a critical value. In each pool boiling experiment of nano-fluids, nano-particles were deposited on the heater surface. Assuming that this phenomenon caused the CHF enhancement, pool boiling experiments of pure water were carried out with these nano-particle deposited heaters. The results of these tests were similar to those of the test of the nano-fluids for the CHF enhancement. The main cause of CHF enhancement was found to be the change of the heater surface structure. In order to analyze boiling phenomena of pure water and Al$_{2}$O$_{3}$ nano-fluids, boiling process was visualized by using a high speed camera.
Starting Page	37
Ending Page	46
Page Count	10
File Format	PDF
ISSN	13438875
Journal	Journal of Visualization
Volume Number	12
Issue Number	1
e-ISSN	18758975
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	CHF Nano-particle deposition Superheat Nano-fluids Pool boiling Engineering Fluid Dynamics Computer Imaging, Vision, Pattern Recognition and Graphics Classical Continuum Physics Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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