Transient freezing of liquids in forced flow inside convectively cooled tubes

The aim of this investigation is to study the characteristics of solidification of a liquid flowing through a convectively cooled pipe under different flow situations. A mathematical model is developed by establishing an energy balance. The amount of heat transferred from the liquid layer to the fre...

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Bibliographic Details
Published in:	International communications in heat and mass transfer Vol. 35; no. 6; pp. 786 - 792
Main Authors:	Seeniraj, R.V., Hari, G. Sankara
Format:	Journal Article
Language:	English
Published:	New York, NY Elsevier Ltd 01-07-2008 Elsevier
Subjects:	Cooling parameter Exact sciences and technology Flows in ducts, channels, nozzles, and conduits Fluid dynamics Freezing Fundamental areas of phenomenology (including applications) Heat transfer Heat transfer in inhomogeneous media, in porous media, and through interfaces Laminar and turbulent cases Physics Pipe fluid flow Stefan and Biot numbers Laminar and turbulent cases Stefan and Biot numbers Cooling parameter Freezing Pipe fluid flow Liquid solid interface Turbulent flow Pipe flow Stefan problem Digital simulation Boundary conditions Forced flow Transients Solidification Laminar flow Modelling Convection cooling Heat transfer
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Summary:	The aim of this investigation is to study the characteristics of solidification of a liquid flowing through a convectively cooled pipe under different flow situations. A mathematical model is developed by establishing an energy balance. The amount of heat transferred from the liquid layer to the freeze-front in a tube section is directly proportional to the convective heat transfer coefficient and the difference between the average temperature of the fluid at the section and the freezing point. The limiting conditions for the commencement of the solidification process are stated. The formulated set of conjugated heat transfer equations is analysed for both laminar and turbulent flows. The governing equations are solved numerically for a specific range of parameters and their characteristics of the process discussed.
ISSN:	0735-1933 1879-0178
DOI:	10.1016/j.icheatmasstransfer.2008.01.012