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 pre...

administrative regulations for water flow decrease distribution efficiency and effect the economical operation of irrigation networks. complications in distribution systems and the decrease in availability of water require study of the hydraulic performance of existing flow control structures. control systems designed by neyrpic (zayandeh rud network) and usbr (doroodzan network) were investiga...

The need to more intelligently and efficiently manage water distribution systems is increasingly more important to agencies managing such networks seeking a way to increase the reliability of their systems, the uninterrupted quality service of their “customers” and the cost-efficient operations and maintenance of the aging distribution networks. Repair and/or replacement of aging water mains, e...

Conventional passive distribution networks are changing to modern active distribution networks which are not radial. Conventional load flow methods should be modified for new distribution networks analysis. In modern distribution networks distributed generation (DG) units are embedded with conventional and/or renewable resources. DG units are generally modeled as PV or PQ nodes which inject ...

Introduction: Drinking water should be free of any chemical contaminants. One of the important aspects of drinking water pollution is presence of heavy metals that can be hazardous for consumer’s health. This study was carried out to determine the concentration of heavy metals in urban and rural drinking water networks of Hamadan province in 2016. Materials and Methods: This study was a ...