Turbulent Mass Transfer Optimization Control Technology in Coalmine

ABSTRACT

Gas control in coalmine was the critical issue since gas accidents give rise to a lot of harm. This paper put forward the optimization control strategy based on the turbulent mass transfer mechanism on the basis of previous research. First of all, gas turbulent mass transfer mathematical model was established in heading laneway. Three aspects were describing in detail, gas diffusion law and quality entransy conservation when no wind, gas fluid flow process and momentum entransy conservation when no wind, ventilation airflow turbulent mass transfer process and mathematics when ventilation exits. Turbulent mass transfer optimization control strategy on the basis of the method of Lagrange multipliers was adopted. Moreover, turbulent mass transfer Euler equation which satisfy mass entransy dissipation extremum in turbulent mass transfer process. Finally, simulation experiments were carried out in the experimental platform; the data shows that turbulent mass transfer optimization control strategy was effective.

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