Liquid-vapor oscillating flow and heat transfer in a vertically placed oscillating heat pipe (OHP) with a sintered particle wick structure are analyzed in this paper. The oscillatory flow of the liquid slug is driven by the variations in pressures in the vapor plug due to evaporation and condensation. The evaporation and condensation heat transfer coefficients are obtained by solving the microfilm evaporation and condensation on the sintered particles. The sensible heat transfer between the liquid slug and the channel wall are obtained by analytical solution or empirical correlations depending on whether the liquid flow is laminar or turbulent. The effects of the sintered particles wick structure on the oscillatory flow, as well as sensible and latent heat transfer, are analyzed and compared with the results without wick structure. A parametric study on the oscillatory flow and heat transfer in the OHP with sintered particle wick structure is also performed.
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e-mail: zhangyu@missouri.edu
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December 2009
This article was originally published in
Journal of Heat Transfer
Research Papers
Effect of Internal Wick Structure on Liquid-Vapor Oscillatory Flow and Heat Transfer in an Oscillating Heat Pipe
Jiajun Xu,
Jiajun Xu
Department of Mechanical and Aerospace Engineering,
University of Missouri
, Columbia, MO 65211
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Yuwen Zhang,
Yuwen Zhang
Fellow ASME
Department of Mechanical and Aerospace Engineering,
e-mail: zhangyu@missouri.edu
University of Missouri
, Columbia, MO 65211
Search for other works by this author on:
Hongbin Ma
Hongbin Ma
Department of Mechanical and Aerospace Engineering,
University of Missouri
, Columbia, MO 65211
Search for other works by this author on:
Jiajun Xu
Department of Mechanical and Aerospace Engineering,
University of Missouri
, Columbia, MO 65211
Yuwen Zhang
Fellow ASME
Department of Mechanical and Aerospace Engineering,
University of Missouri
, Columbia, MO 65211e-mail: zhangyu@missouri.edu
Hongbin Ma
Department of Mechanical and Aerospace Engineering,
University of Missouri
, Columbia, MO 65211J. Heat Transfer. Dec 2009, 131(12): 121012 (10 pages)
Published Online: October 15, 2009
Article history
Received:
January 13, 2009
Revised:
April 9, 2009
Published:
October 15, 2009
Citation
Xu, J., Zhang, Y., and Ma, H. (October 15, 2009). "Effect of Internal Wick Structure on Liquid-Vapor Oscillatory Flow and Heat Transfer in an Oscillating Heat Pipe." ASME. J. Heat Transfer. December 2009; 131(12): 121012. https://doi.org/10.1115/1.3222736
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