Leak detection in water collection and transmission networks using minimum nodal pressure measurement

Asgari, Hamid Reza; Maghrebi, Mahmoud F

doi:10.22075/jrce.2017.12353.1212

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	Leak detection in water collection and transmission networks using minimum nodal pressure measurement
Article 9, Volume 6, Issue 1 - Serial Number 11, Winter and Spring 2018, Page 104-118
Document Type: Regular Paper
DOI: 10.22075/jrce.2017.12353.1212
Authors
Hamid Reza Asgari¹; Mahmoud F Maghrebi ²
¹Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
²Civil Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, P. O. Box 91755-1111, Mashhad, Iran.
Receive Date: 29 August 2017, Revise Date: 18 September 2017, Accept Date: 31 October 2017
Abstract
Leak has always been one of the problems in water distribution networks, whose preventing not only results in saving of water sources, but also has profound effects on maintenance cost of networks. In present paper, a new method is applied for leak detection in water collection and transmission network. In this method, detection of leak location is performed by pressure difference analysis at junctions and by the help of relative index of leak. In this regard, at least two nodes have to be selected for pressure measurement within the network, in order to monitor the pressure changes in with and without leak cases. The investigated network in this research includes 7 wells with approximate length of 7800 m located in North Western city of Mashhad. A real leak with a rate of 7.57 l/s is created at one of the network nodes whose amount is measurable by a volume counter. Finally, this leak is identified by the proposed method via 3 nodal pressure measurements
Keywords
Leak detection; Nodal pressure; Water conveyance system; Head loss; Leak index
Main Subjects
Rehabilitation in Water Supply and Drainage Engineering


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