Abstract
The combustion characteristics of single CWM and COM droplets on a hot surface were investigated. The surrounding temperature was carefully adjusted to the temperature of the hot surface. The vaporization and combustion behavior of a single slurry droplet under a uniform temperature condition could then be observed. The ignition delay time of the COM droplet was shorter than that of the CWM droplets. When the initial diameter of the droplet decreased, the total burning time decreased proportionately with the square of the initial diameter. The effect of the size distribution of the pulverized coal appeared on the lower temperature limit of the surface reaction process of the fixed carbon. Ten kinds of pulverized coal were compared to obtain the relation between the fuel ratio of the coal and the apparent diffusion coefficient that controlled the combustion of the slurry droplet.
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Schedule a callMore From: JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties
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