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

Table 10

Variance analyses in the working condition of 1.2.

Source of variation	Sum of squares	Degree of freedom	Mean square		Critical value	Significance (relative)
A	33.19	2.00	16.59	11.08
B	3.50	2.00	1.75	1.17
C	15.11	2.00	7.55	5.05
D	11.61	2.00	5.80	3.88
E	90.32	2.00	45.16	30.17
G	32.78	2.00	16.39	10.95
Error	3.98	5	0.80
Total	190.48	17

Note. means significant effect, means visible effect, and means slight effect.