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Oxidation of nuclear-reactor-grade graphite

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  • Penner, S.S.
  • Richards, M.B.

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.

Suggested Citation

  • Penner, S.S. & Richards, M.B., 1988. "Oxidation of nuclear-reactor-grade graphite," Energy, Elsevier, vol. 13(6), pages 461-468.
    • Handle: RePEc:eee:energy:v:13:y:1988:i:6:p:461-468
    DOI: 10.1016/0360-5442(88)90001-1
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