|
| Appendix Table A.1. Example of analysis of variance. The complete results of the analysis of variance (López, 1988) for the mean solids content in the case of marine propeller are presented in the table. Similar results were obtained for exit solids and the pitched-blade turbine. Table A.1. Analysis of variance for mean solids concentration, 3MPU. |
|
Effect |
Sum of squares |
Degrees of freedom |
Mean square |
F-values |
p-values |
|
A: aeration rate |
0.9301 |
1 |
0.9301 |
372.05 |
0.0027 |
|
B: agitation rate |
0.8206 |
1 |
0.8206 |
328.25 |
0.0030 |
|
C: impeller height |
0.9063 |
1 |
0.9063 |
362.53 |
0.0027 |
|
AB |
0.0630 |
1 |
0.0630 |
25.20 |
0.0375 |
|
AC |
0.0351 |
1 |
0.0351 |
14.04 |
0.0644 |
|
BC |
0.0136 |
1 |
0.0136 |
5.44 |
0.0448 |
|
AA |
1.0400 |
1 |
1.0400 |
416.02 |
0.0024 |
|
BB |
0.3101 |
1 |
0.3101 |
124.04 |
0.0080 |
|
CC |
0.8886 |
1 |
0.8886 |
355.45 |
0.0028 |
|
Error |
0.1452 |
5 |
0.1452 |
11.62 |
0.0812 |
| R2 = 0.966046; p<0.01, significant effect |
|
|