ISSN:
1573-8345
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract We present the results from an experimental study into the dynamics involved in the formation and the unique features of ignition in shock gas suspensions of coal dust with a dispersion of〈40 μm and a volatile content of 9, 26, and 55%. We have determined the ignition delays τig for coal dusts in air and in pure oxygen for a range of Mach numbers from 2.6 to 4.0 in an incident shock wave. We have established that the quantity τig as well as the nature of the function τig(1/T) are significantly affected by the kinetics of the volatile yield, in addition to the kinetics of volatile ignition. We have derived an approximation expression for τig as a function of the content of volatiles, the temperature of the medium, and the partial pressure of the oxygen.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00789405
