Paper Title:
Influence of Surface Wettability on Dropwise Condensation Heat Transfer
  Abstract

For finding influence of the surface wettability on dropwise condensation heat transfer, a model for dropwise condensation heat transfer has been established based on the drop size distributions and the heat transfer rate through a single drop with considering influence of contact angle to heat transfer. It has been shown based on the proposed model that up to a drop radius of 5μm, the rate of decrease in the drop population density is not as steep as the rate for a drop radius greater than 10μm, because coalescence between drops starts taking place. Varying the contact angle changes the drop distribution; higher the contact angle, lower the departing droplet size and large number density of small droplets. Heat flux first increases and then decreases with increasing contact angle under the temperature difference condition.

  Info
Periodical
Advanced Materials Research (Volumes 228-229)
Edited by
Quanjie Gao
Pages
869-873
DOI
10.4028/www.scientific.net/AMR.228-229.869
Citation
Y. F. Chen, "Influence of Surface Wettability on Dropwise Condensation Heat Transfer", Advanced Materials Research, Vols. 228-229, pp. 869-873, 2011
Online since
April 2011
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Price
$32.00
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