entech. WKP Magazine Explosion Simulation – Gas Dispersal Study P a g e | 7 Figure 3-2 – Explosion gas dispersal path during mechanical ventilation. Rise 2 will have the main fan attached to it, making this the direct exhaust connection to surface. Figure 3-2 indicates blast fume dispersal will occur via internal exhaust shafts linked to Rise 2. Figure 3-3 – Explosion gas dispersal path during natural ventilation, scenario 1. Figure 3-3 shows the contaminant path for scenario 1 when the main fan is switched off. Blast fume dispersal will recirculte around travel routes and internal shafts before finding its way out of the mine
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