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Reaching economic leakage level through pressure management

K. Gonelas, V. Kanakoudis
Available Online 29 December 2015, ws2015181; DOI: 10.2166/ws.2015.181
K. Gonelas
Civil Engineering Department, University of Thessaly, 38334 Volos, Greece E-mail: gonelas1054@gmail.com
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V. Kanakoudis
Civil Engineering Department, University of Thessaly, 38334 Volos, Greece E-mail: gonelas1054@gmail.com
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Abstract

High non-revenue water (NRW) values as percentage of system input volume form a serious problem that many water utilities word wide have to confront nowadays. There are ways to mitigate the effect by adopting strategies with short and long term results. Water pressure management (PM) is one of the most efficient and effective NRW reduction strategies. To calculate pressure's management economic level of leakage (ELL) several steps have to be made like full water costing, calculation of economic benefits and losses of PM interventions and defining the related investment's break-even point. In this paper the results of these three procedures required to define the ELL level are analyzed, in order to present the link between them. The water distribution system of Kozani city (in Northern Greece) is used as the case study network. The results of both the net present values PM implementation results and the investment's break-even estimation are analyzed.

  • District Metered Areas
  • non-revenue water
  • pressure management
  • First received 15 June 2015.
  • Accepted in revised form 7 December 2015.
  • © IWA Publishing 2015

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SELECTED ISSUE

Water Science and Technology: Water Supply: 18 (2)
  Volume 18,issue 2

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Reaching economic leakage level through pressure management
K. Gonelas, V. Kanakoudis
Water Science and Technology: Water Supply Dec 2015, ws2015181; DOI: 10.2166/ws.2015.181
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Reaching economic leakage level through pressure management
K. Gonelas, V. Kanakoudis
Water Science and Technology: Water Supply Dec 2015, ws2015181; DOI: 10.2166/ws.2015.181

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Keywords

district metered areas
non-revenue water
pressure management
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