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The decision variables were the number of pumping units in the pump station, their capacity in kilowatts, and the hourly pump status over 24 h. The pumps were assumed to be identical. In the Apulian network, the pump capacity was selected from the commercial pump capacities given in Table 1, while the corresponding pump characteristics curve is presented in Figure 3. The commercial pump capacities ranged from 0.1 to 5.2 kW in the Net2 network. A maximum of 10 pumping units could be installed in the pump station.
Table 1

Commercial pump capacities used for Apulian network pump optimization

Commercial pump IDDesign flow (L/s)Design head (m)Power (kW)
1 100 5 5 
2 102 10 10 
3 104 15 15 
4 106 19 20 
5 108 24 25 
6 110 28 30 
7 112 32 35 
8 114 36 40 
9 116 40 45 
10 118 43 50 
11 120 47 55 
12 122 50 60 
13 124 53 65 
14 126 57 70 
15 128 60 75 
16 130 63 80 
17 132 66 85 
18 134 69 90 
19 136 71 95 
20 138 74 100 
Commercial pump IDDesign flow (L/s)Design head (m)Power (kW)
1 100 5 5 
2 102 10 10 
3 104 15 15 
4 106 19 20 
5 108 24 25 
6 110 28 30 
7 112 32 35 
8 114 36 40 
9 116 40 45 
10 118 43 50 
11 120 47 55 
12 122 50 60 
13 124 53 65 
14 126 57 70 
15 128 60 75 
16 130 63 80 
17 132 66 85 
18 134 69 90 
19 136 71 95 
20 138 74 100 
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Figure 3
Figure 3. Pump curves for commercial pumps given in Table 1.
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Pump curves for commercial pumps given in Table 1.

Figure 3
Figure 3. Pump curves for commercial pumps given in Table 1.
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Pump curves for commercial pumps given in Table 1.

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