Performance Improvement of a Micro Impulse Water Turbine Based on Orthogonal Array

Table 3

Factors and levels of orthogonal experiment.

Level	Factor
	Number of blades	Blade tip clearance	Width of blade	Inlet blade angle	Blade outlet diameter	Inclination angle of blade outlet
1	10	7	26	155	65	50
2	12	5	28	145	72	60
3	14	2	31	135	80	70