Efficiency-House Optimization to Widen the Operation Range of the Double-Suction Centrifugal Pump

Table 6

“Efficiency-house” of orthogonal tests.

Model	S
1	9.0108
2	8.8285
3	8.8981
4	8.7494
5	8.5743
6	8.8071
7	8.7726
8	8.9455
9	8.8705
10	8.8197
11	8.9320
12	8.8157
13	8.9214
14	8.9795
15	8.8492
16	8.9430
17	8.9189
18	8.7994
19	8.7767
20	8.7942
21	8.9178
22	8.7892
23	8.7850
24	8.8110
25	8.7835
26	8.8254
27	8.8760
28	8.7750
29	8.9819
30	8.6676
31	9.0407
32	8.6526
A	9.0885
B	8.9772
C	8.9057