0
TECHNICAL BRIEFS

Critical Heat Flux of Steady Boiling for Water Jet Impingement in Flat Stagnation Zone on Superhydrophilic Surface

[+] Author and Article Information
Zhenhua Liu

School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai, People's Republic of China 200030liuzhenh@sjtu.edu.cn

Yuhao Qiu

School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai, People's Republic of China 200030

J. Heat Transfer 128(7), 726-729 (Nov 23, 2005) (4 pages) doi:10.1115/1.2194045 History: Received September 05, 2005; Revised November 23, 2005

The nucleate boiling heat transfer characteristics of a round water jet impingement in a flat stagnation zone on the superhydrophilic surface were experimentally investigated. The superhydrophilic heat transfer surface was formed by a TiO2 coating process. The experimental results were compared with those on the common metal surface. In particular, the quantificational effects of the flow conditions, heating conditions, and the coating methods on the critical heat flux (CHF) were systemically investigated. The experimental data showed that the nucleate boiling heat transfer characteristics on the superhydrophilic surface are significantly different from those on the common metal surface. The CHF of boiling on the superhydrophilic surface is greatly increased by decreasing of the solid-liquid contact angle.

FIGURES IN THIS ARTICLE
<>
Copyright © 2006 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Jet boiling curves on the superhydrophilic surface for Φ4mm nozzle

Grahic Jump Location
Figure 2

Comparison of CHF between the superhydrophilic surface and copper surface for saturated water

Grahic Jump Location
Figure 3

Comparison of CHF between the superhydrophilic surface and copper surface for subcooled water

Grahic Jump Location
Figure 4

Comparison of CHF data of the superhydrophilic surface with Eq. 3

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In