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TECHNICAL BRIEFS

Dryout Heat Flux During Penetration of Water Into Solidifying Rock

[+] Author and Article Information
Michael Epstein

 Fauske & Associates, LLC, 16W070 West 83rd Street, Burr Ridge, IL 60527

J. Heat Transfer 128(8), 847-850 (Feb 28, 2006) (4 pages) doi:10.1115/1.2227042 History: Received August 17, 2005; Revised February 28, 2006

A model for the dryout heat flux during penetration of water into solidifying rock is developed by combining steady-state one-dimensional phase change theory with available semiempirical equations for (i) the dryout heat flux in a porous medium and (ii) the permeability of hot rock cooled by water. The model is in good agreement with measurements made during the pouring of water onto molten magma. The implication of the model with respect to stabilizing molten-nuclear-reactor-core material by flooding from above is discussed.

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Copyright © 2006 by American Society of Mechanical Engineers
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Figures

Grahic Jump Location
Figure 1

An Illustration of the water ingression problem. The moving dry conduction zone lies between z=0 and z=δ.

Grahic Jump Location
Figure 2

Solidification front velocity and dryout heat flux versus melt layer convective heat flux for molten reactor core thermophysical properties but rock material creep behavior

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