Transient wave-based methods for anomaly detection in fluid pipes: A review

Chuan, Tong; Duan, Huan‐Feng; Lee, Pedro

doi:10.1016/j.ymssp.2021.107874

Cited by 91 publications

(39 citation statements)

References 178 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are several methods for calibration and defect detection in the pipeline systems (Che et al 2021). In this study, the ITA is used to estimate the system's unknown parameters.…”

Section: Inverse Transient Analysis Methodsmentioning

confidence: 99%

“…In this study, the ITA is used to estimate the system's unknown parameters. One of the advantages of the ITA is its application to pipe systems with complex topography and configurations (Che et al 2021). ITA uses the data collected from the real systems to predict the unknown parameters.…”

Section: Inverse Transient Analysis Methodsmentioning

confidence: 99%

“…Their results showed that the blockage changes the resonant amplitudes and frequency locations, and that changing the frequency location can be used to identify the location of the blockage. Che et al (2021) showed that a blockage in the pipe system affects the pressure heads. These changes may exceed the original transient design capacity and increase the risk of pipe system failure.…”

Section: Graphical Abstract Abbreviationsmentioning

confidence: 99%

“…As discussed before, blockage in a viscoelastic pipe network causes damping, phase shift, and transformation of the transient signal. According to the previous studies, defects in piping systems can be located and characterized based on the resulting changes in the transient waves (Mohapatra et al 2006;Lee et al 2008;Duan et al 2012Duan et al , 2014Sun et al 2016;Yan et al 2020;Che et al 2021). In this section, the aim is to assess the model for determination of blockage location and characteristics in a pipe network because of their effects on transient pressure waves.…”

Section: Assessment Of the Model For Partial Blockage Estimation In The Pipe Networkmentioning

confidence: 99%

See 3 more Smart Citations

Modeling of transient flows in viscoelastic pipe network with partial blockage

Chahardah-Cherik

Fathi-Moghadam

Haghighipour

2021

Journal of Water Supply: Research and Technology-Aqua

View full text Add to dashboard Cite

In this study, transient flow and partial blockage in polyethylene (PE) pipe network are investigated experimentally and numerically using the method of characteristics in the time domain considering pipe-wall viscoelasticity. The experiments were conducted on a PE pipe network with and without partial blockage. The experimental pressure signals were damped during a short period of time in the blockage-free case. The numerical model was calibrated by the inverse transient analysis (ITA). The hydraulic transient solver calibrated with one Kelvin–Voigt element showed good consistency with the experimental results. Partial blockages with different lengths and sizes were examined at different locations of the pipe network. Results reveal an increase in head loss, pressure signal damping, and phase shift with increase in blockage. In addition, the location and characteristics of blockages with different sizes were determined using the ITA in the pipe network.

show abstract

“…There are several methods for calibration and defect detection in the pipeline systems (Che et al 2021). In this study, the ITA is used to estimate the system's unknown parameters.…”

Section: Inverse Transient Analysis Methodsmentioning

confidence: 99%

Section: Inverse Transient Analysis Methodsmentioning

confidence: 99%

Section: Graphical Abstract Abbreviationsmentioning

confidence: 99%

Section: Assessment Of the Model For Partial Blockage Estimation In The Pipe Networkmentioning

confidence: 99%

See 2 more Smart Citations

Modeling of transient flows in viscoelastic pipe network with partial blockage

Chahardah-Cherik

Fathi-Moghadam

Haghighipour

2021

Journal of Water Supply: Research and Technology-Aqua

View full text Add to dashboard Cite

show abstract

“…The sound waves undergo varying degrees of physical phenomena such as reflection, refraction, and diffraction during passage through the discontinuous interface of acoustic impedance [14]. Acoustic impulse response signals are weak, and it is easy to be interfered with by the external environment noise, thus the signal-to-noise ratio is low [15]. On the other hand, due to the coupling of excitation and response, the acoustic signal of pipeline blockage presents obvious nonlinearity and non-stationarity [16].…”

Section: Introductionmentioning

confidence: 99%

A Novel Feature Selection Based on VMD and Information Gain for Pipe Blockages

Zhu

Feng

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

Targeting the challenge of determining the degree of blockage in buried pipelines and the difficulty of effectively extracting blockage features, a blockage detection method integrating variational mode decomposition (VMD) and information gain is proposed. Acoustic impulse response signals were obtained by deconvolving the output signals of the system, which were then subjected to VMD to obtain 12 components in different frequency ranges. Next, information gain (IG) was introduced to characterize the 12 components quantitatively, through which the components containing rich information about the pipe conditions were selected out. Meanwhile, sound pressure level conversion was performed on the selected components to amplify any changes in the sound field. Finally, the root mean square entropy (RMSE) was calculated to constitute the feature eigenvectors, which were input into Random Forests (RF) classifier for defect identification of pipeline. As the experimental results demonstrate, the proposed method is capable of determining the degree of blockage effectively in the running state. Meanwhile, it can also eliminate the interference of functional parts such as lateral connections during the identification process, thereby improving the identification accuracy. The present study has shown both theoretical significance and application value in the field of defect detection and recognition.

show abstract

Hydraulic Diagnostic Kit for the Automatic Expeditious Survey of in-line Valve Sealing in Long, Large Diameter Transmission Mains

Capponi

Brunone

Maietta

et al. 2023

Water Resour Manage

View full text Add to dashboard Cite

In long transmission mains (TMs), maintenance operations and repairs often require the preliminary closure of some of the installed in-line valves. If perfectly sealed, these valves avoid leakage and then the possible emptying of the pipelines, air entry through leaks, and the successive unwanted transients at the filling completion. The poor accessibility of TMs makes the check of the valve sealing quite difficult since in most cases the confined space where they are installed implies the adoption of severe prevention measures. Therefore, expeditious and possibly remote survey procedures are strongly required by pipe system managers. In this paper, an innovative technique based on the execution of safe transient tests is proposed. It is tested on the Dorsale TM – a long, large diameter pipe system – in the northeast of Milan, Italy, where the sealing of three in-line valves had to be checked. The analysis of the test results allows pointing out successfully not only the valves sealing, but also refining a quick and reliable procedure – the so called “diagnostic kit” – that leads the way to automatic and periodic checks of the valve sealing. In the proposed procedure – that can be straightforwardly exported to other TMs – only a single pressure measurement section is required, that significantly simplifies the survey.

show abstract

Transient wave-based methods for anomaly detection in fluid pipes: A review

Cited by 91 publications

References 178 publications

Modeling of transient flows in viscoelastic pipe network with partial blockage

Modeling of transient flows in viscoelastic pipe network with partial blockage

A Novel Feature Selection Based on VMD and Information Gain for Pipe Blockages

Hydraulic Diagnostic Kit for the Automatic Expeditious Survey of in-line Valve Sealing in Long, Large Diameter Transmission Mains

Contact Info

Product

Resources

About