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Show 12. Solomon, P.R., Fletcher, T.H. and Pugmire, R.J. Fuel 72, 587, 1993; also Advanced Fuel Research Inc. 'Users Guide for F G - D V C , East Hartford, CT, 1992. 13. Solomon, P.R. and Fletcher, T.H. Twenty-Fifth Symposium (International) on Combustion, The Combustion Institute, 463-474, 1994 14. Niksa, S. Twenty-Fifth Symposium (International) on Combustion, The Combustion Institute, 537-544, 1994 15. Tomeczek, J. and Palugniok, H. Fuel, Vol. 75, 2, 1089-1093, 1996. 16. Unsworth, J.F., Barratt, D.J. and Roberts, P.T. Coal Quality and Combustion Performance: An International Perspective, Coal Science and Technology 19, Elsevier, 1991. 17. Vranos, A. Combust. Sci. Technol. 84, 323, 1992. 18. Opposed Diffusion Flame Code, Sandia National Laboratories. 19. Bowman, C.T., Hanson, R.K., Davidson, D.F., Gardiner, Jr, W.C., Lissianski, V., Smith, G.P., Golden, D.M., Frenklach, M. and Goldenberg, M., http://www.me.berkeley.edu/ gri_mech/ 20. Stamer, S.H., Bilger, R.W., Dibble, R.W. and Barlow, R.S., Comb. Flame, 83, 63, 1991. 21. Ma, J., Fletcher, T.H., Webb, B.W. Twenty-Sixth Symposium (International) on Combustion, The Combustion Institute, 3161-3167, 1996. 22. McLean, W.J., Hardesty, D.R. and Pohl, J.H. Eighteenth Symposium (International) on Combustion, The Combustion Institute, 1239-1247, 1981. Legend aJt a2 = mass stoichiometric coefficients for devolatilisation reactions 1 and 2. Af= pre-exponential factor (g cm"2 s"1 atm"1) Ap = single particle pre-exponential factor Ay, A,, A 2 = pre-exponential constant for devolatilisation (s-1) determined experimentally A, B = empirical constants Cp = heat capacity (kJ kg"1 K"1) Dp = diameter of particle (cm) E = Stefan-Boltzman constant Ea = activation energy (J mol"1) Ev, E,, E2 = Activation energy for devolatilisation determined experimentally FA = reactivity distribution function h = heat transfer coefficient k = thermal conductivity of gas ky, k,, k2 = rate constants for devolatilisation L = distance between fuel and oxidiser inlets (cm) 12 |