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Type: Journal article
Title: Frequency domain analysis for detecting pipeline leaks
Author: Lee, P.
Vitkovsky, J.
Lambert, M.
Simpson, A.
Liggett, J.
Citation: Journal of Hydraulic Engineering, 2005; 131(7):596-604
Publisher: ASCE-Amer Soc Civil Engineers
Issue Date: 2005
ISSN: 0733-9429
Statement of
Pedro J. Lee, John P. Vítkovský, Martin F. Lambert, Angus R. Simpson and James A. Liggett
Abstract: This paper introduces leak detection methods that involve the injection of a fluid transient into the pipeline, with the resultant transient trace analyzed in the frequency domain. Two methods of leak detection using the frequency response of the pipeline are proposed. The inverse resonance method involves matching the modeled frequency responses to those observed to determine the leak parameters. The peak-sequencing method determines the region in which the leak is located by comparing the relative sizes between peaks in the frequency response diagram. It was found that a unique pattern was induced on the peaks of the frequency response for each specific location of the leak within the pipeline. The leak location can be determined by matching the observed pattern to patterns generated numerically within a lookup table. The procedure for extracting the linear frequency response diagram, including the optimum measurement position, the effect of unsteady friction, and the way in which the technique can be extended into pipeline networks, are also discussed within the paper.
Keywords: Leakage
Water pipelines
Frequency response
Transient flow
Linear systems.
Description: The original publication can be found at
Rights: © 2005 ASCE
DOI: 10.1061/(ASCE)0733-9429(2005)131:7(596)
Appears in Collections:Aurora harvest 2
Civil and Environmental Engineering publications
Environment Institute publications

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