Table 3: The record of unit airflow rate.

Position Distance (m) Wind speed (m/s) Dimension (m2) Airflow rate (m3/min)
Inlet 0.00 1.32 8.33 658.31
5 9.80 1.15 9.01 622.83
10 17.30 0.91 10.95 597.2
15 24.80 0.8 12.33 586.17
20 32.30 0.85 11.33 576.93
30 47.30 0.92 10.39 570.62
45 69.80 1.00 9.43 566.27
55 84.80 0.90 10.39 562.74
70 107.30 0.97 9.83 571.07
80 122.30 1.02 9.47 582.15
85 129.80 0.91 10.83 594.62
95 144.80 1.07 9.63 620.47
98 149.30 1.11 9.45 630.93
Outlet 158.22 1.11 9.86 657.2