Table 2.

Geometrical parameters of the impellers used in the study

No.	Agitator	d/D	Z	a/d	b/d	β (deg)	Remarks
1	Rushton turbine	0.33	6	0.25	0.2
2	Smith turbine	0.33	6	0.25	0.2		R = b/2
3	Turbine	0.33	6		0.2	90
4	Pitched blade turbine (PBT)	0.33	6		0.2	60
5		0.33	6		0.2	45
6		0.33	6		0.2	30
7		0.33	3		0.2	45
8	Propeller, S/d = 1	0.33	3		0.2a

^aMax value