Numerical investigation of a PCM-based heat sink with internal fins: Constant heat flux

Numerical investigation of a PCM-based heat sink with internal fins: Constant heat flux Melting of a phase change material (PCM) is studied in a heat sink with vertical internal fins and a horizontal base to which a constant heat flux is applied. The phase change material is stored between the fins. A detailed parametric investigation explores various fin height and thickness, PCM layer thickness, and applied heat flux. Transient numerical simulations are performed using the Fluent 6 software. The results show how the transient phase change process depends on the heat flux from the base, heat capacity of the PCM, and fin dimensions. Dimensional analysis of the results is performed, and the generalized results are presented in terms of the melt fractions and Nusselt numbers vs. the Fourier, Stefan and Rayleigh numbers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Heat and Mass Transfer Elsevier

Numerical investigation of a PCM-based heat sink with internal fins: Constant heat flux

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Publisher
Elsevier
Copyright
Copyright © 2007 Elsevier Ltd
ISSN
0017-9310
eISSN
1879-2189
D.O.I.
10.1016/j.ijheatmasstransfer.2007.11.036
Publisher site
See Article on Publisher Site

Abstract

Melting of a phase change material (PCM) is studied in a heat sink with vertical internal fins and a horizontal base to which a constant heat flux is applied. The phase change material is stored between the fins. A detailed parametric investigation explores various fin height and thickness, PCM layer thickness, and applied heat flux. Transient numerical simulations are performed using the Fluent 6 software. The results show how the transient phase change process depends on the heat flux from the base, heat capacity of the PCM, and fin dimensions. Dimensional analysis of the results is performed, and the generalized results are presented in terms of the melt fractions and Nusselt numbers vs. the Fourier, Stefan and Rayleigh numbers.

Journal

International Journal of Heat and Mass TransferElsevier

Published: Mar 1, 2008

References

  • Numerical and experimental study of melting in a spherical shell
    Assis, E.; Katsman, L.; Ziskind, G.; Letan, R.
  • Melting in a side heated tall enclosure by a uniformly dissipating heat source
    Pal, D.; Joshi, Y.K.

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