An Analysis of Liquid Film Condensation Occurring Inside Rotating Heat Pipes with a Trigonal Cross Section

Chul Ju Kim; Jae Seok Lee; Sung Hoon Kim; Byung Ho Sung

doi:10.4028/www.scientific.net/SSP.120.257

Paper Titles

Multilayered and Arrayed Flexible Tactile Sensor Using PVDF
p.229

A Knowledge Representation Framework in Design Repository
p.235

A Perturbation Observer Based Robust Estimation Technique for Structural Monitoring and Control
p.241

Robust Sensor Placement to Measurement Noise for Structural Dynamic Systems
p.247

An Analysis of Liquid Film Condensation Occurring Inside Rotating Heat Pipes with a Trigonal Cross Section
p.257

Wall Shear Stress in the Helical Annular Flow with Rotating Inner Cylinder
p.261

Development of Digital Speckle Tomography for Analysis of Unsteady and Asymmetric Flows
p.267

Application of Aerodynamic Lenses to In Situ Particle Monitors (ISPM) for Higher Reliability in Semiconductor Fabrication Process
p.273

The Effects of Acid Treatment Methods on the Diameter Dependent Fracture of Single Walled Carbon Nanotubes
p.281

HomeSolid State PhenomenaSolid State Phenomena Vol. 120An Analysis of Liquid Film Condensation Occurring...

An Analysis of Liquid Film Condensation Occurring Inside Rotating Heat Pipes with a Trigonal Cross Section

Abstract:

Rotational heat pipes (RHPs) with a trigonal cross section was recently proposed by Lee et al. Inside the tube of these RHPs the condensate liquid film flows down the wall in the direction vertical to the tube axis due to centrifugal force and then the liquid returns to the evaporator along the edges. The Nusselt analysis model of laminar film condensation was applied and the solutions were compared with the experimental data. Concerning about the Nu vs Re the same relation was obtained as that for vertical plate except the length scale. The thickness of condensate film was found to be uniform along the surface due to increasing centrifugal force with surface length for a given heat flux and rotational speed.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Solid State Phenomena (Volume 120)

Pages:

257-260

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.120.257

Citation:

Cite this paper

Online since:

February 2007

Authors:

Chul Ju Kim, Jae Seok Lee, Sung Hoon Kim, Byung Ho Sung

Keywords:

Condensate, Liquid Film Thickness, RHP (Rotational Heat Pipe)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] V. Gray, 1969, the Rotating Heat Pipe-A Wickless Hollow shaft for Transferring High Heat Fluxes, ASME Paper No. 69-HT-19.

Google Scholar

[2] Faghri, Amir. Heat Pipe Science and Technology, Tayor & Francis, 1995. p.445~462.

Google Scholar

[3] Lin, L., Cellular Flow in a Rotating Heat Pipe with Stepped Wall, Heat Recovery Systems & CHP, Vol. 11, No. 1, pp 63M68, (1991).

DOI: 10.1016/0890-4332(91)90188-a

Google Scholar

[4] Marto, P. J. and Wagenseil, L. L., Augmenting the Condenser Heat Transfer Performance of Rotating Heat Pipe, AIAA J., Vol. 17, No. 6, 1979, pp. 647M652.

DOI: 10.2514/3.61191

Google Scholar

[5] Lee, J. S., Kim, C. J., Park, E. T. and Hwang, Y. K., A fundamental study of operating characteristic for a rotating heat pipe, Proceedings of the Korean Society of Mechanical Engineers, 1995, pp. 610M615(in Korean).

Google Scholar

[6] Chun, K. R., and Seban, R. A., Heat transfer to evaporating liquid films, , J. Heat Transfer, 93, 391~396 (1971).

DOI: 10.1115/1.3449836

Google Scholar