Research Article

Increasing Oxygen Mass Fraction in Blind Headings of a Plateau Metal Mine by Oxygen Supply Duct Design: A CFD Modelling Approach

Table 2

The parameters of ventilation duct and oxygen supply duct.

Duct diameter (m)Volume airflow (m3/s)Airflow velocity (m/s)

Forcing ductD 1 = 0.50Q 1 = 1.0308 = 5.25
Exhausting ductD 2 = 0.50Q 2 = 0.8246 = 4.20
Oxygen supply ductD 3 = 0.05Q 3 = 0.0084 = 4.20