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Leak detection through wavelet analysis of pressure measurement forinjected pressure for a simple pipeline system 게시글의 제목, 학술지명, 저자, 발행일, 작성내용을 보여줌
Leak detection through wavelet analysis of pressure measurement forinjected pressure for a simple pipeline system
학술지명 Desalination Publications 저자 이종섭,고동원,이은경,김상현,김진원,최두용
발표일 2021-07-01

An effective leak detection method is one of the most demanding techniques for the management
of water distribution systems. A leak detection scheme with pressure wave analysis using a rapid
manipulation of hydraulic boundary conditions is not always suitable owing to substantial pressure
variation, which can result in undesirable consequences for pipeline systems. The introduction of a
relatively small pressure pulse through a regulated pressure generator can substantially diminish
the potential damage of high- or low-pressure surges. Wave reflection due to the leakage boundary
condition can be useful for predicting the leak location based on the time-domain reflectometry
of the pressure signal. Further elaborate analysis for leak detection can be performed using wavelet
analysis of the pressure signal, which provides leak response features in the time/frequency
domain. Two distinct experimental conditions were employed to illustrate the impact of resonance
on the hydraulic structure, such as a pressurized tank. The developed method demonstrates
the potential of leak detection in a laboratory-scale pipeline system.

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