Optimization of Integrated Impeller Mixer via Radiotracer Experiments

Table 4

The means of each level for four factors.

Parameters	Factors	A: type mixer	B: impeller speed (mm)	C: impeller clearance (rpm)	D: sampling time (s)
MRT (s)	Level 1	147.40	146.76	142.38	143.38
	Level 2	142.09	136.36	138.14	131.68
	Level 3	131.93	138.30	140.9	146.36
𝑉dead (%)	Level 1	5.95	6.69	9.21	8.57
	Level 2	9.59	13.27	12.39	16.57
	Level 3	16.48	12.07	10.43	6.89