entech. WKP Magazine Explosion Simulation – Gas Dispersal Study P a g e | 10 Table 4-1 – Surface connection parameters. Willows Rise Rise 3 FAR X 2,762,466 2,760,478 Y 6,424,329 6,429,513 Z 240 216 Round Vertical Round Vertical W (m) H (m) A (m²) 19.6 19.6 5,923 756 391mᶟ/s 437 kg/s 391mᶟ/s 437 kg/s 391mᶟ/s 437 kg/s 391mᶟ/s 437 kg/s 54mᶟ/s 61 kg/s 75mᶟ/s 84 kg/s 262mᶟ/s 293 kg/s 387mᶟ/s 437 kg/s 17.4mᶟ/s 19.4 kg/s 17.4mᶟ/s 19.4 kg/s 17.4mᶟ/s 19.4 kg/s 4.8mᶟ/s 5.5 kg/s 12.4mᶟ/s 13.9 kg/s 17.4mᶟ/s 19.4 kg/s 20.2mᶟ/s 22.6 kg/s 20.2mᶟ/s 22.6 kg/s 20.2mᶟ/s 22.6 kg/s 9.5mᶟ/s 10.7 kg/s 10.6mᶟ/s 11.9 kg/s 20.2mᶟ/s 22.6 kg/s 10.6mᶟ/s 12.4 kg/s 10.6mᶟ/s 12.4 kg/s 10.6mᶟ/s 12.4 kg/s 5.2mᶟ/s 6.1 kg/s 5.4mᶟ/s 6.3 kg/s 10.6mᶟ/s 12.4 kg/s Key Exhaust Intake Shape & Orientation Arched Horizontal Arched Horizontal Round Vertical Round Vertical Parameters Plant Portal Willows Portal Rise 1 FAR Rise 2 RAR 190 274 230 Coordinates (NZMG) 2,764,014 2,763,573 2,760,442 2,760,466 6,419,939 6,423,686 6,429,033 6,429,434 101 25.8 25.8 19.6 23.8 Primary Fan Fan On (Rise 2 Upcasting) Dimensions Shortest Path from UG Magazine (m) 10,329 6,995 899 651 5.0 5.0 5.5 5.5 Ø 5.0 Ø 5.0 Ø 5.5 Ø 5.0 1. Summer - Primary Fan Off (Rise 1 Upcasting) 16.4m/s Blocked - Shaft not Used Volumetric Airflow of Entire Mine Surface Connection Volumetric Airflow Apportionment of Volumetric Flow 14% 19% 67% 100% Surface Connection Velocity 2.1m/s 2.9m/s Blocked - Shaft not Used 13.4m/s 2. Summer - Primary Fan Off (Rise 1 Downcasting) Blocked by Fan Dampers Blocked - Shaft not Used Volumetric Airflow of Entire Mine Surface Connection Volumetric Airflow Apportionment of Volumetric Flow 28% 72% 100% Surface Connection Velocity 0.2m/s 0.5m/s Blocked - Shaft not Used 0.9m/s Winter - Primary Fan Off (Rise 1 Upcasting) Blocked by Fan Dampers Blocked - Shaft not Used Volumetric Airflow of Entire Mine Surface Connection Volumetric Airflow Apportionment of Volumetric Flow 47% 53% 100% Surface Connection Velocity 0.4m/s 0.4m/s Blocked - Shaft not Used 1.0m/s Volumetric Airflow of Entire Mine Surface Connection Volumetric Airflow Apportionment of Volumetric Flow 49% 51% 100% Surface Connection Velocity 0.2m/s 0.2m/s Blocked - Shaft not Used 0.5m/s Blocked by Fan Dampers Blocked - Shaft not Used
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