Modeling the Influence of Wind Velocity and Water Content on Coal Dusts in Wind Tunnel

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Abstract:

Emission of coal dusts can cause serious air pollution in coal-pile storage yard, which poses a threat to human health. Therefore, the quantitative research on particulate emissions is the premise for dealing with atmospheric pollution. In this paper, a series of experiments are firstly carried out in wind tunnel to study the impact of the wind velocity and water content on coal dusts for the mixing pile. Moreover, particle entrainment is investigated by measuring the velocity required to pick up particles from rest, also known as threshold velocity. Then a number of experimental data are obtained and a fitting formula is derived with the aid of Matlab. Finally, the results are compared with those published previously, and explanations about the differences are given.

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Periodical:

Advanced Materials Research (Volumes 1010-1012)

Pages:

772-776

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Online since:

August 2014

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