Locating the Average Pressure Zone Point in Water Distribution Networks through Hydraulic Analysis

Articles in Press

Authors

1 Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran

2 Vafadar St, Tehranpars 4 Sq, Tehran, Iran

Abstract

Monitoring water distribution networks (WDNs) often involves pressure metering, but determining the optimal placement of pressure sensors and accurately calculating the average pressure remains a challenge. To address this, it's crucial to measure pressure at the average zone point (AZP) in the field. However, conventional methods for AZP determination can introduce significant errors. This paper introduces a novel method for AZP determination in WDNs. The approach transforms the existing WDN into a graph and assigns edge weights based on pipe energy loss. By employing Dijkstra's algorithm and a new cost function, the optimal AZP location is identified. This method was applied to two reference networks, Hanoi and modified Poulakis, yielding promising results. Pressure measurements obtained through this method more accurately represent the network's average pressure, with an absolute error of less than 0.5% for the studied networks. Moreover, this approach significantly reduces errors compared to conventional methods, achieving an error reduction of over 93%. This innovative method holds great potential for adoption by water and wastewater companies.

Keywords

Journal of Water and Wastewater Science and Engineering

Articles in Press, Accepted Manuscript
Available Online from 09 October 2023

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History

  • Receive Date: 28 June 2023
  • Revise Date: 26 September 2023
  • Accept Date: 09 October 2023

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