Freezing around a finite heat sink immersed in an infinite phase change medium

Freezing around a spherical heat sink immersed in an infinite phase change medium — a free boundary problem involving growth and decay of the free boundary — is analysed here. A one-dimensional conduction model is formulated and the resulting partial differential equations are solved by finite diffe...

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Bibliographic Details
Published in:The International journal of heat and fluid flow 1985, Vol.6 (2), p.104-112
Main Authors: Padmanabhan, P.V., Krishnamurthy, M.V.
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
finite difference method
freezing
Fundamental areas of phenomenology (including applications)
Heat transfer
Heat transfer in inhomogeneous media, in porous media, and through interfaces
numerical analysis
phase transitions
Physics
spherical heat sinks
Theoretical studies. Data and constants. Metering
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Summary:Freezing around a spherical heat sink immersed in an infinite phase change medium — a free boundary problem involving growth and decay of the free boundary — is analysed here. A one-dimensional conduction model is formulated and the resulting partial differential equations are solved by finite difference methods. The energy discharged from the phase change medium during the heat transfer process is analysed for latent heat thermal energy storage applications. Results are presented for a wide range of parameters that are encountered in energy storage devices. The cases of slab/cylindrical heat sink are reexamined for a range of parameters not covered by the earlier investigators
ISSN:0142-727X
1879-2278
DOI:10.1016/0142-727X(85)90044-X