Table E5.5 Operation Characteristics of the Two Centrifugal Pumps at 960 rpm: Volume Flow Rate, Q, (m3/s00.00.02 0.0 0.04 0.05 0.06 0.07 Head Gain, Ho, (m) 68 676664 6051380
Homework Answers
| Q | HEAD GAIN(SERIES) | Hp =40+7997.5Q^2 |
| 0 | 136 | 40 |
| 0.01 | 134 | 40.79975 |
| 0.02 | 132 | 43.199 |
| 0.03 | 128 | 47.19775 |
| 0.04 | 120 | 52.796 |
| 0.05 | 102 | 59.99375 |
| 0.06 | 76 | 68.791 |
| 0.07 | 0 | 79.18775 |
So Q=0.061m3/s will be obtained at total head of 69.78m. ANS(i)
| Q | HEAD GAIN(PARALLEL) | Hp =40+7997.5Q^2 |
| 0 | 68 | 40 |
| 0.02 | 67 | 43.199 |
| 0.04 | 66 | 52.796 |
| 0.06 | 64 | 68.791 |
| 0.08 | 60 | 91.184 |
| 0.1 | 51 | 119.975 |
| 0.12 | 38 | 155.164 |
| 0.14 | 0 | 196.751 |
So Q=.058m3/s will be obtained for total head of 66.90m. ANS(ii)
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