Environmental Engineering Reference
In-Depth Information
Table 9.12
Number of pipes causing loss of demand, per ADF range
Net nr. 0-10%
11-20%
21-30%
31-40%
41-50%
51-60% 61-70% 71-80%
81-90% 91-100%
1727
1
2
1
2
67
3307
1
1
72
691
3
1
1
3
67
757
1
2
2
70
353
1
2
2
4
66
962
3
1
71
Table 9.13
Percentage of pipes causing loss of demand, per ADF range
Net nr.
0-10%
11-20%
21-30%
31-40%
41-50%
51-60% 61-70% 71-80%
81-90% 91-100%
1727
1.37%
2.74%
1.37%
2.74% 91.78%
3307
1.35%
1.35% 97.30%
691
4.00%
1.33%
1.33%
4.00%
89.33%
757
1.33%
2.67%
2.67%
93.33%
353
1.33%
2.67%
2.67%
5.33%
88.00%
962
4.00%
1.33% 94.67%
9.5.2 Impact of Worst Case Failure
The network diagnostics module also categorises the loss of demand per node, giving
impression about the coverage and severity of the worst case pipe failure, which is shown in
Tables 9.14 and 9.15.
Table 9.14
Percentage of nodes with corresponding ADF after the worst pipe failure
Net nr.
0-10%
11-20%
21-30%
31-40%
41-50%
51-60% 61-70% 71-80%
81-90% 91-100%
1727
100%
3307
2%
2%
2%
8%
12%
14%
16%
44%
691
22%
4%
6%
8%
16%
10%
20%
2%
12%
757
6%
2%
4%
6%
6%
8%
10%
28%
16%
14%
353
24%
4%
2%
4%
12%
16%
18%
18%
2%
962
4%
4%
2%
2%
6%
10%
8%
14%
22%
28%
Table 9.15
Percentage of original demand affected by the worst pipe failure (ADF range in %)
Net nr.
0-10%
11-20%
21-30%
31-40%
41-50%
51-60% 61-70% 71-80%
81-90% 91-100%
1727
100%
3307
3.28%
3.28%
4.92%
14.75% 12.46%
8.85% 12.79% 39.67%
691
34.10%
6.89%
10.82%
9.84% 12.46%
6.89%
11.15%
1.97%
5.90%
757
8.20%
1.97%
8.52%
8.20%
8.52%
11.48% 17.05%
20.00%
7.87%
8.205
353
35.41%
7.54%
1.97%
4.59% 14.75%
15.41% 10.16%
8.52%
1.64%
962
5.90%
4.26%
4.26%
3.61%
10.82%
13.44%
13.11% 14.75%
14.10% 15.74%
Search WWH ::
Custom Search