Improving Efficiency and Reliability in Water Distribution Systems

This book contains the lectures given in the International Course "Improving efficiency and reliability in water supply systems", hosted and sponsored by the Menendez Pelayo International University (U.I.M.P.) and co-sponsored by Aguas de Valencia, the British Council and the EC Cornett and Erasmus programmes. The short course took place in Valencia (Spain) in November 1994, with an attendance of more than one hundred delegates. We must not only acknowedge and thank Dr. Joaquin Azagra, as UIMP Director, but also his collaborators D. Luis Moreno and Lidia Lopez for their support in the preparation of the Course and during the course taking place. UIMP sponsorship allowed us to assemble in Valencia an eminent cadre of lecturers coming from all over the world, that covered in an ordered and precise fashion some of the more relevant aspects on efficiency and reliability in water supply systems. We are very thankful to all these leading lecturers for their invaluable cooperation. The publication of this book and the Spanish edition as well, have been made possible thanks to the sponsorship of both Polytechnic University of Valencia througout its Chancellor, Justo Nieto, and Aguas de Valencia throughout its General Director Alvaro Aguirre. We must also thank Kluwer Academic Publishers and especially their Publisher Petra van Steenbergen for her assistance, careful presentation and production of the book.

Fundamentals.- 1. Modelling water distribution networks: From steady flow to water hammer.- 2. Water consumption in distribution networks. Short term demand forecast.- Leakage Detection in Networks.- 3. General overview of unaccounted for water in water distribution systems.- 4. Leakage detection in practice. Application to the water distribution of Valencia.- 5. Monitoring water distribution systems. The inverse method as a tool for calibration and leak detection.- Network Management: Leakage Control.- 6. Using variable speed pumps to reduce leakage and improve performance.- 7. Valve control regulation for reducing leakage.- Managing Water Distribution Systems to Reduce Energy Costs.- 8. Energy audit of a water system network.- 9. Pump scheduling for reducing energy costs.- Reliability, Risk Analysis and Rehabilitation.- 10. Analytical and simulation models for reliability analysis in water distribution systems.- 11. Hydraulic performance and rehabilitation strategies. The use of levels-ofservice and performance indices as decision support tools.- 12. Effects of pipe failures on water distribution networks.- 13. Optimum design and reliability in water distribution systems.- 14. Effect of transient operations on the reliability of hydraulic systems.- 15. Reliability and expected use of dynamic devices in a water distribution system.- 16. Water quality modeling in pipe networks.- 17. Modeling water quality changes in distribution systems: A U.S. perspective.