Optimal operation of water distribution networks under local pipe failures

Abstract

The optimal operation of water distribution networks under local pipe failures, such as water main breaks, was proposed. Based on a hydraulic analysis and a simulation of water distribution networks, a macroscopic model for a network under a local pipe failure was established by the statistical regression. After the operation objectives under a local pipe failure were determined, the optimal operation model was developed and solved by the genetic algorithm. The program was developed and examined by a city distribution network. The optimal operation alternative shows that the electricity cost is saved approximately 11%, the income of the water corporation is increased approximately 5%, and the pressure in the water distribution network is distributed evenly to ensure the network safe operation. Therefore, the proposed method for optimal operation under local pipe failure is feasible and cost-effective.

Keywords

water distribution network / local pipe failure / macroscopic model / optimal operation

References

[1] WangG.-shou.The Developing Plan of Technique Progress for City Water Supply in 2000[M], 1993, Beijing, China Construction Press: 335-348

[2] JacobsP., GoulterI.. Estimation of maximum cut-set size for water network failure[J]. Journal of Water Resources Planning and Management, 1991, 117(5): 588-605

[3] KansalM. L., KumarA.. Computer-aided reliability analysis of water distribution networks[J]. International Journal of Modelling and Simulation, 2000, 20(3): 264-273

[4] ShinstineD. S., AhmedI., LanseyK. E.. Reliability/availability analysis of municipal water distribution networks: Case studies[J]. Journal of Water Resources Planning and Management, 2002, 128(2): 140-151

[5] PelletierG., MilhotA., VilleneuveJ. P.. Modeling water pipe breaks—Three case studies[J]. Journal of Water Resources Planning and Management, 2003, 129(2): 115-123

[6] HE Fang, LIU Sui-qing. Analysis on pipe break in water distribution system and its countermeasures[J]. Pipeline Technique and Equipment, 2004 (5): 20–23. (in Chinese)

[7] LiangJ.-w., XiaoD., ZhaoX.-h., et al.. On-line fault diagnosis of water distribution system[J]. Journal of Hydraulic Engineering, 2001, 34(12): 40-47

[8] JowittP. W., XuC.. Predicting pipe failure effects in water distribution networks[J]. Journal of Water Resources Planning and Management, 1993, 119(1): 18-31

[9] SunJ.-h., ZhaoY.-de.. Optimal operation for water distribution system[J]. China Water & Waste Water, 1993, 9(6): 31-34

[10] XuS.-rong.. Optimal operation of water distribution system[J]. Journal of Hunan University: Natural Sciences, 1998, 25(6): 86-91

[11] KlempousR., KotowskiJ., NikodemJ., et al.. Optimization algorithms of operative control in water distribution systems[J]. Journal of Computational and Applied Mathematics, 1997, 84(1): 81-99

[12] CembranoG., WellsG., QuevedoJ., et al.. Optimal control of a water distribution network in a supervisory control system[J]. Control Engineering Practice, 2000, 8(10): 1177-1188

[13] XiaoZ.-q., BaoG.-s., JiangX.-que.. Road network extraction in classified SAR images using genetic algorithm[J]. J Cent South Univ Technol, 2004, 11(2): 80-84

[14] PrasadT. D., ParkN. S.. Multiobjective genetic algorithms for design of water distribution networks[J]. Journal of Water Resources Planning and Management, 2004, 130(1): 73-82

[15] TolsonB. A., MaierH. R., SimpsonA. R., et al.. Genetic algorithms for reliability-based optimization of water distribution systems[J]. Journal of Water Resources Planning and Management, 2004, 130(1): 63-72