Analysis of conservative approach for simulating water supply system in various conditions

Syed Rizvi, Rabee Rustum, Grant Wright, Malini Deepak, Lynne Barbara Jack

Research output: Contribution to journalArticlepeer-review

Abstract

The development of technology has made it easier for engineers to design and test models that allow simulation of real-time water distribution networks with greater accuracy. However, with so many nodes and links in a network, building a model still requires some simplification. One such simplification is the 'conservative approach', which applies the principle of 'lumped demand', taking the demand only from nodes at the ends of pipes. Herein, the full effect of lumped demand on key water parameters is analysed, on a large-scale network based on as-built networks of Al Furjan and Dubai Silicon Oasis, Dubai, UAE for different conditions. Epanet and WDNetXL software are used for the analysis, and results show the impact of different levels of skeletonisation on the head and velocity values for the two models. The analysis indicates that the head changes are high for a branched network under the extreme condition of firefighting. It includes the effect of skeletonising local tanks, with changes being higher when all tanks are empty. These findings provide a critical evaluation of the performance of this method for the Middle East region and it is concluded that the considerable velocity changes observed in the models could lead to overdesign.

Original languageEnglish
Pages (from-to)1-31
JournalProceedings of the ICE - Water Management
Early online date29 Mar 2021
DOIs
Publication statusE-pub ahead of print - 29 Mar 2021

Keywords

  • Infrastructure Planning
  • Water supply
  • water distribution networks

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Engineering
  • Water Science and Technology

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