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Characteristics of coal char combustion

✍ Scribed by Reginald E. Mitchell


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
341 KB
Volume
72
Category
Article
ISSN
0016-2361

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πŸ“œ SIMILAR VOLUMES


In reply: On analysing the combustion ch
✍ H.P. Tseng; T.F. Edgar πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 269 KB

time is the same as that corresponding to pore diffusion control (Equation ( )). If the evolution of surface area can be described by: S/S,=(l-f)"3 (6) the resulting equation for the conversion coincides with that for film-diffusion control (Equation ( )). Therefore, it is concluded that much care

The effect of agitation on the char comb
✍ A.A. Malik; D. Pehlivan; C.R. Howarth πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 412 KB

To simulate combustion behaviour in a pilot-scale combustor, a laboratory-scale agitated combustor has been developed which allows burnout and combustion rates for large coal particles to be measured. Particle sizes up to 25 mm can be studied, typical of those used in fixed-bed retorts. Char burnout

Modeling and experimental studies on com
✍ Anup Kumar Sadhukhan; Parthapratim Gupta; Ranajit Kumar Saha πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 337 KB

## Abstract A generalized single‐particle model for the prediction of combustion dynamics of a porous coal char in a fluidized bed is analyzed in the present work using a volume reaction model (VRM). A fully transient nonisothermal model involving both heterogeneous and homogeneous chemical reactio

Dynamic behavior of coal char particle c
✍ K. RemΓ©nyi; V. KertΓ©sz; L. VΓΆrΓΆs; F. HorvΓ‘th πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 816 KB

A mathematical model is developed that represents a first approximation of the dynamics of the coal char combustion. The model determines a range of particle sizes and gas temperatures where oscillation can occur and propagating spherical waves surround the particle. It is also possible to compute t

Discrete simulation of cenospheric coal-
✍ Ranajit Sahu; Richard C. Flagan; George R. Gavalas πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 582 KB

A phenomenological model of structural transformations during pulverized coal char combustion is presented. The random geometry of the voids is modeled realistically by means of a random assemblage of spheres in a spherical particle. Pore counectedn~s and growth are accounted for as the combustion p

The combustion of Loy Yang brown coal ch
✍ B.C. Young; I.W. Smith πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 598 KB

Combustion rate measurements of Loy Yang brown coal char particles (88 #m median size) over the temperature range 940-1420 K yielded a chemical rate coefficient Re, expressed as Re= 12.6 expl-68.3/(RTp)] kg/m2s (kPa 02) Β°.4. Particle size and density decreased with burn off, but in an unusual manne