Document Type : review paper
Authors
1 Associate Professor of Water Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad,Iran
2 Graduated Student, of water Structures ,Islamic Azad University, Iran.
Abstract
Events and accidents in drinking water distribution networks are among cases that lose water and increase the rate of non revenue water. Network events in addition to wasting water can cause destruction, traffic jam, pressure reduction, pollution and enormous reconstruction costs.The main focus of this study is to statistically evaluate these incidents and to develop an analytical method to predict the distribution of evens in five rural sectors of Ghaen city (sector Zohan, Zirkooh, Nimblook, Sadeh and Markazi). Data showed that Markazi and Zirkooh sectors during a five-year period (2008-2012) had the highest and lowest number of events for branches with 603 and 170 events, respectively. Also for this period, Markazi and Nimblook had the highest and lowest events in the networks with 1209 and 547 events, respectively. The analysis of events in the five areas based on models such as simple growth model showed that Zirkooh and Markazi sectores will be having the highest and lowest number of events within of the next 5 years with 2073 and 618 events, respectively.
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