Automated leak localization performance without detailed demand distribution data

Janneke Moors, Lisa Scholten, Jan Peter van der Hoek, Jurjen den Besten

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
61 Downloads (Pure)

Abstract

Automatic leak localization has been suggested to reduce the time and personnel efforts needed to localize
(small) leaks. Yet, the available methods require a detailed demand distribution model for successful
calibration and good leak localization performance. The main aim of this work was to analyze whether such
a detailed demand distribution is needed. Two demand distributions were used: a factorized distribution
that distributes the inflow demand proportionally across the consumption nodes according to individual
billing data, and a uniform distribution that equally distributes demand across all consumption nodes.
The performance of the automatic leak localization method, using both demand distribution models,
was compared. A new measure for leak localization performance that is based on the percentage of false
positive nodes is proposed. It was possible to localize the leaks with both demand distribution models,
although performance varied depending on the timing and duration of the measurement.
Original languageEnglish
Pages (from-to)116-123
Number of pages8
JournalUrban Water Journal
Volume15
Issue number2
DOIs
Publication statusE-pub ahead of print - 2018

Keywords

  • model-based leak localization
  • district metered area
  • demand distribution

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