Download PDF Computer Modeling of Water Distribution Systems MANUAL OF WATER SUPPLY PRACTICES M32 Second Edition AWWA MANUAL M32 Second Edition

Sinopsis

Water utilities seek to provide customers with a reliable, continuous supply of highquality water while minimizing costs. This water is often delivered through very large and complex distribution systems consisting of many miles of pipe and often containing numerous pumps, regulating valves, and storage reservoirs. These

systems are often difficult to understand because of their physical complexity, and because of the large amount of data that must be processed. Sometimes, key pieces of information needed to understand a system are not available. In addition, the chemical interactions that take place in the water, and between the water and pipes or reservoirs, are complex. One tool that has evolved over time to help water system designers, operators, and managers in their task of delivering safe, reliable water at a low cost is distribution system modeling.

Distribution system modeling involves using a computer model of a water distribution system to predict the behavior of the system to solve a wide variety of design, operational, and water quality problems. The computer model is used to predict pressures and flows within a water distribution system to evaluate a design

and to compare system performance against design standards. The model is used in operational studies to solve problems, such as evaluating storage capacity, investigating control schemes, and finding ways to deliver water under difficult operating scenarios. Water quality models are used to perform such tasks as computing water age, tracking chlorine residuals, and reducing disinfection by-products in a distribution system.

Content

1. Introduction to Distribution System Modeling
2. Preparing the Model
3. Hydraulic Tests and Measurements
4. Steady-State Simulation
5. Extended-Period Simulation
6. Water Quality Modeling
7. Advances and Trends in Network Modeling

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