⛏ Underground Mine Ventilation Network: Atkinson Resistance, Fan Curve, Regulator Doors and Methane Dilution - 2D Plan

Plan view of a coal-mine ventilation network: change the main fan, a booster fan, regulator doors, a rock fall and methane emission, and watch Atkinson resistance, the fan operating point, airflow split and methane dilution update, with six live numerical checks including a Hardy Cross cross-check.