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SANFLOW model was used to partition UFW into real and APL as explained in the section ‘Partitioning of UFW’. Data logging results in Figures 79 show the average MNF and peak hour demands (PHDs). Both inlets for Area 15 and 18 (residential areas) showed a similar trend where MNFs occurred between midnight and 04:00 hours and PHDs occurred between 06:00 hours and 08:00 hours. The trend for Area 28 (industrial area) was different from the others, where PHDs mostly occurred after midday. This was explained by the possibility that different industries had different times for their PHDs. APL were then calculated as explained in the section ‘Partitioning of UFW’. Table 4 summarizes the results from partitioning of UFW into real and APL.
Table 4

Summary of results from partitioning of UFW

 Avg UFW m3/monthAvg MNF m3/hAvg ENF m3/hAvg RL m3/monthAvg TAPL m3/monthRL as % of UFWAPL as a % of UFW
Area 15 5,239 8.1 5.96 4,221 1,018 81% 19% 
Area 18 39,293 102 47.03 33,862 5,431 86% 14% 
Area 28 5,495 1.98 1.471 1,145 4,436 21% 79% 
 Avg UFW m3/monthAvg MNF m3/hAvg ENF m3/hAvg RL m3/monthAvg TAPL m3/monthRL as % of UFWAPL as a % of UFW
Area 15 5,239 8.1 5.96 4,221 1,018 81% 19% 
Area 18 39,293 102 47.03 33,862 5,431 86% 14% 
Area 28 5,495 1.98 1.471 1,145 4,436 21% 79% 
Figure 7

(a) Flow/pressure variation for: (a) Lingazi inlet – Area 15 and (b) Chitukuko inlet – Area 15.

Figure 7

(a) Flow/pressure variation for: (a) Lingazi inlet – Area 15 and (b) Chitukuko inlet – Area 15.

Figure 8

(a) Flow variations for: Kanengo zone inlet – Area 18 and (b) Mtunthama zone inlet – Area 18.

Figure 8

(a) Flow variations for: Kanengo zone inlet – Area 18 and (b) Mtunthama zone inlet – Area 18.

Figure 9

Flow variations – Area 28 zone inlet.

Figure 9

Flow variations – Area 28 zone inlet.

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