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

Table 9

Variance analyses in the working condition of 1.0.

Source of variation	Sum of squares	Degree of freedom	Mean square		Critical value	Significance (relative)
A	22.61	2.00	11.30	7.12
B	3.76	2.00	1.88	1.18
C	14.09	2.00	7.05	4.44
D	13.01	2.00	6.51	4.10
E	97.14	2.00	48.57	30.61
G	37.05	2.00	18.52	11.67
Error	4.10	5	0.82
Total	191.76	17

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