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

Table 8

Variance analyses in the working condition of 0.8.

Source of variation	Sum of squares	Degree of freedom	Mean square		Critical value	Significance (relative)
A	14.06	2	7.03	4.90
B	6.93	2	3.47	2.42
C	12.54	2	6.27	4.37
D	12.25	2	6.13	4.27
E	118.01	2	59.00	41.16
G	41.38	2	20.69	14.43
Error	5.24	5	1.05
Total	210.41	17

Note. means significant effect and means slight effect.