Combustion of a solid particle. [Mathematical models] [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1980. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 32 : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- We consider the quasi-steady burning of a carbon particle which undergoes gasification at its surface by chemical reactions, followed by a homogeneous reaction in the gas phase. The burning rate M is found as a function of the gas phase Damkoehler number D/sub g/ for the whole range o < D/sub g/ < infinity. The monotonic M(D/sub g/) curve, obtained for relatively very hot or very cold particles, describes the gradual transition from frozen flow to equilibrium. For moderate particle temperatures the transition is abrupt and the M(D/sub g/) curve is either S-shaped or Z-shaped. In the former the burning is enhanced at ignition while in the latter it is slowed down; this depends on the relative importance of the two competitive surface reactions. At extinction, the reverse is true: burning is slowed down in the case of an S curve and is enhanced in the case of a Z curve.
- Published through SciTech Connect., 01/01/1980., "doe/et/11056-t2", Matalon, M., Polytechnic Inst. of New York, Farmingdale (USA), and Northwestern Univ., Evanston, IL (USA)
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