Freezing in an eccentric annulus is investigated numerically by using a temperature transforming model. Since the effect of the heat conduction along the circular direction on the growth of the freezing layer is very small, an analytical solution by employing integral approximate method is proposed. The freezing rate obtained by the analytical solution agreed very well with that of the numerical solution, although the analytical solution is much simpler than the numerical solution. The effects of the eccentric annulus geometric structure on the freezing process is also investigated.

Issue Section:
Research Papers
Topics:
Annulus, Freezing, Heat conduction, Temperature
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Bareiss
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An Analytical Solution of the Heat Transfer Process During Melting of an Unfixed Solid Phase Change Material Inside a Horizontal Tube
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2.
Betzel
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Solidification and Melting Heat Transfer to an Unfixed Phase Change Material (PCM) encapsulated in a Horizontal Concentric Annulus
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42
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5.
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6.
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C. J.
, and
Viskanta
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Heat Transfer During Inward Melting in a Horizontal Tube
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Int. J. Heat Mass Transfer
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7.
Huang, C. L., Schreiber, W. C., and Chuan, C. H., 1989, “The Numerical Solution of Heat Conduction with Freezing in Cylinders of Arbitrary Cross-Section,” National Heat Transfer Conference (HTD-Vol. 109, Multiphase Flow, Heat and Mass Transfer), pp. 9–15.
8.
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9.
Viskanta, R., 1983, “Phase Change Heat Transfer,” Solar Heat Storage: Latent Heat Materials G. A. Lane, ed., CRC Press, Boca Raton, FL, pp. 153–222.
10.
Yao
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, and
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Melting and Freezing
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1
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95
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11.
Zhang
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Semi-Analytical Solution of Thermal Energy Storage System with Conjugate Laminar Forced Convection
,”
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, Vol.
39
. pp.
717
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724
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