Research Article
Multiobjective Optimization of Low-Specific-Speed Multistage Pumps by Using Matrix Analysis and CFD Method
Table 8
Simulation statistics.
| Test number | H/m | η/% | P/kW |
| 1 | 32.17 | 61.77 | 1.711 | 2 | 32.81 | 63.41 | 1.669 | 3 | 30.25 | 60.45 | 1.561 | 4 | 38.08 | 62.08 | 2.108 | 5 | 34.97 | 61.05 | 1.983 | 6 | 35.22 | 60.84 | 2.01 | 7 | 35.94 | 57.41 | 2.17 | 8 | 36.78 | 59.11 | 2.212 | 9 | 38.56 | 61.02 | 2.242 | 10 | 34.88 | 59.12 | 2.054 | 11 | 35.04 | 60.10 | 2.006 | 12 | 35.64 | 61.58 | 1.987 | 13 | 35.80 | 61.08 | 2.064 | 14 | 36.89 | 61.21 | 2.097 | 15 | 35.04 | 60.12 | 2.064 | 16 | 37.12 | 62.32 | 2.029 | 17 | 34.50 | 59.28 | 1.989 | 18 | 35.72 | 61.13 | 2.005 | 19 | 38.01 | 61.73 | 2.151 | 20 | 35.42 | 60.03 | 2.108 | 21 | 35.36 | 60.21 | 2.092 | 22 | 34.16 | 59.62 | 1.924 | 23 | 33.78 | 60.64 | 1.978 | 24 | 34.24 | 60.90 | 1.831 | 25 | 35.89 | 60.52 | 2.080 | 26 | 37.45 | 61.88 | 2.110 | 27 | 35.30 | 59.59 | 2.069 |
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H (m) is two-stage head under Q; η (%) is the efficiency of stage two under Q; P (kW) is two-stage shaft power at 1.5.
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