Thermal History of Rock Dust Particles in a Gas Flame Preheat Zone

📖 The Scoop

In a Bureau of Mines study two-dimensional mathematical equations were solved that describe the transient thermal response of rock dust particle in a cloud of similar particles in a gas flame's preheat zone subject to a radiant field from the approaching flame. The description includes both radiant energy absorbed and emitted by the particle and thermal conduction inside the particle and into the surrounding gas environment moving relative to the particle. Two situations were studied: in one the radiant energy incident on the particle is converted to thermal energy at the particle surface, and in the other the radiant energy is converted to thermal energy uniformly over the volume of the particle.

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