Introduction to Urban Water Distribution, Second Edition Problems & Exercises

Introduction to Urban Water Distribution comprises the core training material used in the Master of Science programme in Urban Water and Sanitation at IHE Delft Institute for Water Education. Participants in this programme are professionals working in the water and sanitation sector from over forty, predominantly developing, countries from all parts of the world. Outside this diverse audience, the most appropriate readers are those who know little or nothing about the subject. However, experts dealing with advanced problems can also use it as a refresher of their knowledge, as well as the teachers in this field may like to use some of the contents in their educational programmes. The general focus in the book is on understanding the steady-state hydraulics that forms the basis of hydraulic design and computer modelling applied in water distribution. The main purpose of the workshop problems and three computer exercises is to develop a temporal and spatial perception of the main hydraulic parameters in the system for given layout and demand scenarios. Furthermore, the book contains a detailed discussion on water demand, which is a fundamental element of any network analysis, and general principles of network construction, operation and maintenance. The book includes nearly 700 illustrations and the accompanying electronic materials contain all the spreadsheet applications and the network model files used in solving the workshop problems and computer exercises. This book is the second volume of the Introduction to Urban Water Distribution, 2nd Edition set.

Preface to the second edition Introduction 1 Workshop problems 1.1 Water demand 1.2 Single pipe calculation 1.3 Branched systems 1.4 Looped systems 1.5 Hydraulics of storage and pumps 1.6 Examination problems 1.7 Examination true-false tests 2 Network modelling workshop 2.1 Learning objectives and set-up 2.2 Case introduction 2.3 Preparing the models 2.4 Questions part 1 – direct pumping 2.5 Questions part 2 – balancing storage 2.6 Epanet raw case network model – cws.net (INP-format) 2.7 Answer sheets – solutions 1/150 3 Network design exercise 3.1 Learning objectives and set-up 3.2 Case introduction – the town of Safi 3.3 Questions 3.4 Hydraulic design 3.5 System operation 3.6 Final layouts 4 Network rehabilitation exercise 4.1 Learning objectives and set-up 4.2 Case introduction – Nametown 4.3 Design steps and corresponding questions 4.4 The layout of the design report 4.5 The tutorial 5 Minor loss factors 5.1 Bends and elbows 5.2 Enlargements and reducers 5.3 Branches 5.4 Inlets and outlets 5.5 Flow meters 5.6 Valves 6 Hydraulic tables, D = 50–1600 mm, S = 0.0005–0.02 6.1 k = 0.01, 0.05, 0.1, 0.5, 1 and 5 mm at T = 10º C 6.2 k = 0.01, 0.05, 0.1, 0.5, 1 and 5 mm at T = 20º C 7 Spreadsheet hydraulic lessons – Overview 7.1 Single pipe calculation 7.2 Pipes in parallel and series 7.3 Branched network layouts 7.4 Looped network layouts 7.5 Gravity supply 7.6 Pumped supply 7.7 Combined supply 7.8 Water demand 8 EPANET – Version 2 8.1 Installation 8.2 Using the programme 8.3 Input data 8.4 Viewing results 8.5 Copying to the Clipboard or to a File 8.6 Error and warning messages 8.7 Troubleshooting results 9 Unit conversion table

Nemanja Trifunovic is an Associate Professor of Water Supply Engineering at IHE Delft Institute for Water Education in Delft, The Netherlands. He is a specialist in the field of water distribution, in general, and in the application of computer models in urban distribution networks, in particular. Apart from lecturing assignments, the author is involved in the guidance of MSc research as well as in organising various forms of training, including the development and implementation of online courses in water distribution. Numerous lecturing missions that he has conducted all over the world include participation in various capacity development projects and educational and training programmes. In addition to his academic duties, in his nearly 30-years long career at IHE the author served as the programme coordinator of The Sanitary Engineering Masters programme and was the director of large capacity development projects conducted at universities and water utilities in Ghana, South Africa and Mozambique.