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

Table 4

Orthogonal test results.

Level
1	84.70	88.03	86.87
2	84.14	88.69	87.51
3	84.86	89.21	87.60
4	83.31	88.16	87.59
5	82.25	87.41	86.45
6	83.86	87.26	84.61
7	83.17	87.20	86.04
8	84.58	88.43	87.25
9	83.72	87.88	87.43
10	83.68	87.83	86.70
11	85.07	88.44	85.61
12	83.99	88.70	87.80
13	84.25	88.62	88.35
14	84.87	87.68	85.07
15	83.74	88.02	87.40
16	85.00	88.77	86.77
17	84.96	88.66	86.28
18	83.79	87.51	85.31
19	83.99	87.88	85.27
20	83.92	87.85	85.66
21	84.70	89.40	88.82
22	84.44	88.98	86.74
23	83.29	87.83	87.37
24	83.91	88.52	87.54
25	83.85	88.36	86.94
26	84.17	88.90	87.88
27	84.40	88.93	87.99
28	83.77	87.79	85.69
29	84.15	87.87	87.72
30	83.86	88.43	85.41
31	84.89	88.18	87.09
32	83.01	87.17	84.72