- Author
-
Mitchell, R. E.
- Title
- Experimentally Determined Overall Burning Rates of Coal Chars.
- Coporate
- Sandia National Labs., Livermore, Ca
- Journal
-
Combustion Science and Technology,
Vol. 53,
No. 2-3,
165-186,
1987
- Report
-
WSS/CI 86-68,
- Book or Conf
- Combustion Institute/Canadian and Western States Section. Spring Meeting, 1986. April 27-30, 1986,
Banff, Alberta, Canada,
1-27 p.,
1987
- Keywords
-
char
- Abstract
- Simultaneous measurements of the size, temperature, and velocity of single pulverized-coal char particles have been used to determine the overall burning rates of the chars flowing in hot, oxidizing gaseous environments. The single film model of a burning carbon particle is employed with CO as the sole heterogeneous reaction product. Arrhenius parameters for the chemical reaction rate coefficients which include the combined effects of port diffusion and the intrinsic chemical reactivity of the particle material are derived for the coals investigated.