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Transitional Boiling Characteristics of an Individual Liquid Droplet on the Heated Solid Surface

[+] Author Affiliations
Lu Gui, Xiao-Feng Peng

Tsinghua University, Beijing, China

Xiao-Dong Wang

Beijing University of Science and Technology, Beijing, China

Paper No. MNC2007-21445, pp. 903-907; 5 pages
doi:10.1115/MNC2007-21445
From:
  • 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems
  • First International Conference on Integration and Commercialization of Micro and Nanosystems, Parts A and B
  • Sanya, Hainan, China, January 10–13, 2007
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4265-7 | eISBN: 0-7918-3794-7
  • Copyright © 2007 by ASME

abstract

An experimental investigation was conducted to visually observe the transitional boiling in an individual water droplet on heated solid surfaces, with temperature ranging from 120°C to 160°C. Using a high-speed video imaging system, the dynamical process of the evaporation and boiling behavior of a droplet was recorded. Infrared ray temperature measurement technique was employed to investigate the instantaneous characteristics of heat transfer as the droplet was boiled. In the transition boiling regime, the phase change behavior of a droplet displayed a cyclical process. Restricted cyclical, sole-bubble cyclical and metastable cyclical styles were observed as the surface temperature increased.

Copyright © 2007 by ASME
Topics: Boiling

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