Reversed boiling curve phenomenon on surfaces with interlaced wettability

C. C. Hsu; W. C. Chiu; L. S. Kuo; P. H. Chen

doi:10.1063/1.4897953

AIP Advances (Oct 2014)

Reversed boiling curve phenomenon on surfaces with interlaced wettability

C. C. Hsu,
W. C. Chiu,
L. S. Kuo,
P. H. Chen

Affiliations

C. C. Hsu: Department of Mechanical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
W. C. Chiu: Department of Mechanical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
L. S. Kuo: Department of Mechanical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
P. H. Chen: Department of Mechanical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan

DOI: https://doi.org/10.1063/1.4897953
Journal volume & issue: Vol. 4, no. 10
pp. 107110 – 107110-6

Abstract

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We experimentally investigated the effects of contact angle difference of heterogeneous wettability surfaces on pool boiling. For surfaces exhibiting heterogeneous wettability, this study determined that the pool boiling curve experiences a superheat decrease in some regions before the system achieves the critical heat flux. In addition, oscillation of the vapor column and bubble transverse motions on the heterogeneous wettability coated surface were observed.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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