Oxidation of nuclear-reactor-grade graphite

S.S. Penner and M.B. Richards

Energy, 1988, vol. 13, issue 6, 461-468

Abstract: An analytical solution is developed for transient, constant-temperature and constant-pressure oxidation of a hollow, porous graphite cylinder by oxygen diffusing from the cylinder surfaces. The following approximations are used: a binary diffusion approximation for all species, a constant value for the product of density and diffusion coefficient, negligibly small mass-average velocity and axial diffusion, a single heterogeneous reaction producing CO2, and first-order reaction kinetics with respect to oxygen. The analytical results are in good agreement with data obtained by Klaschka et al for an experimental configuration designed to provide constant-temperature and constantpressure oxidation of a hollow graphite cylinder.

Date: 1988
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:13:y:1988:i:6:p:461-468

DOI: 10.1016/0360-5442(88)90001-1

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