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

Table 4

Specific settings in case A and case B.

		Oxygen outlet direction	Height of oxygen duct outlet (m)
Case A	Case 2.1	Vertical	1.70
	Case 2.2	Vertical	1.80
	Case 2.3	Vertical	1.90
Case B	Case 2.4	Horizontal	1.70
	Case 2.5	Horizontal	1.80
	Case 2.6	Horizontal	1.90