Table 1. Orthogonal experimental design...

Table 1.

Orthogonal experimental design and exploration of TFSL and air-makeup volumetric rate with the variable tunnel height

No.	A	B	C	E	Index
	$Tunnel height : m$	Exhaust rate: $m^{3} / s$	HRR $kW$	Vent longitudinal separation: $m$	TFSL: $m$	Thermal efficiency
1	5.2	3.6	3	44	359	—
2	5.2	6.8	11.5	44	464	—
3	5.2	10	20	44	445	—
4	5.6	3.6	11.5	44	628	—
5	5.6	6.8	20	44	575	—
6	5.6	10	3	44	255	—
7	6	3.6	20	44	787	—
8	6	6.8	3	44	294	—
9	6	10	11.5	44	432	—

No.	A	B	C	E	Index
	$Tunnel height : m$	Exhaust rate: $m^{3} / s$	HRR $kW$	Vent longitudinal separation: $m$	TFSL: $m$	Thermal efficiency
1	5.2	3.6	3	44	359	—
2	5.2	6.8	11.5	44	464	—
3	5.2	10	20	44	445	—
4	5.6	3.6	11.5	44	628	—
5	5.6	6.8	20	44	575	—
6	5.6	10	3	44	255	—
7	6	3.6	20	44	787	—
8	6	6.8	3	44	294	—
9	6	10	11.5	44	432	—