Detection of two-point leakages in a pipeline based on lab investigation and numerical simulation

Fu, Hao; Wang, Sai; Ling, Kegang

doi:10.1016/j.petrol.2021.108747

Cited by 17 publications

(4 citation statements)

References 18 publications

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“…También se han realizado estudios comparando la simulación mediante dinámica de fluidos computacional (CFD) con la experimentación (Fu, H., Wang, S., & Ling, K., 2021); utilizaron dos medidores de flujo y presión en una tubería que presentaba dos puntos de fuga; encontraron que la diferencia de la caída de presión entre la simulación y la experimentación variaba desde −3.95% a 4.58%, por lo que consideraron ambos resultados confiables. Lo que permitió emplear la simulación para desarrollar un modelo para la detección de fugas, el cual reduce el tiempo de inspección y los costos para localizar una fuga, esto impacta en la reducción del volumen del fluido perdido, daños e impacto de la fuga.…”

Section: Introductionunclassified

Prototipo virtual para la detección de fugas de agua potable

Chávez-Guzmán

Monjaras-Izquierdo

Galván-Guerra

et al. 2022

ICBI

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En este trabajo se presenta un prototipo virtual para la detección de fugas de agua potable en un sistema de tuberías desarrollado en MATLAB y Simscape. Se parametrizaron los equipos con características proporcionadas por los fabricantes para tener un comportamiento apegado a un sistema real. El sistema se integró de un tanque de almacenamiento, una bomba centrífuga para recircular el agua, transmisores de flujo y presión, así como seis válvulas de control para simular fugas en diferentes ubicaciones en la tubería. En el prototipo se implementó un algoritmo de detección de fugas basado en observadores de alta ganancia, lo que permitió detectar las fugas en tres escenarios propuestos.

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Section: Introductionunclassified

Prototipo virtual para la detección de fugas de agua potable

Chávez-Guzmán

Monjaras-Izquierdo

Galván-Guerra

et al. 2022

ICBI

View full text Add to dashboard Cite

show abstract

“…On the other hand, the multi-leak case study has also been considered from two different perspectives: (i) for sequential leaks (non-concurrent case) [ 7 , 8 , 9 ] and (ii) for the simultaneous leak problem (concurrent case) [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Experimental results of a pilot pipeline showed a satisfactory estimation in spite of operational changes and leaks. More recently, in [ 9 ], a pressure distribution analysis is proposed to diagnose the location of leaks via an experimental study and computational fluid dynamics ( CFD ) simulation. Multiple flow rate testing is conducted to detect the locations of two leaks.…”

Section: Introductionmentioning

confidence: 99%

Two Simultaneous Leak Diagnosis in Pipelines Based on Input–Output Numerical Differentiation

Navarro-Díaz

Delgado-Aguiñaga

Begovich

et al. 2021

Sensors

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This paper addresses the two simultaneous leak diagnosis problem in pipelines based on a state vector reconstruction as a strategy to improve water shortages in large cities by only considering the availability of the flow rate and pressure head measurements at both ends of the pipeline. The proposed algorithm considers the parameters of both leaks as new state variables with constant dynamics, which results in an extended state representation. By applying a suitable persistent input, an invertible mapping in x can be obtained as a function of the input and output, including their time derivatives of the third-order. The state vector can then be reconstructed by means of an algebraic-like observer through the computation of time derivatives using a Numerical Differentiation with Annihilatorsconsidering its inherent noise rejection properties. Experimental results showed that leak parameters were reconstructed with accuracy using a test bed plant built at Cinvestav Guadalajara.

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“…Leaks in water supply pipelines cause not only economic losses but also large-scale water road collapses and other accidents [ 3 , 4 ]. Therefore, it is very important to detect leakage in water supply pipelines [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Propagation and Distribution Characteristics of Leakage Acoustic Waves in Water Supply Pipelines

Zhou

et al. 2021

Sensors

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Leakage detection methods based on the analysis of leakage acoustic signals provide an effective technical approach for detecting small leaks in water supply pipelines. From a technical perspective, the study of the propagation characteristics of acoustic waves generated by the leakage in the water supply pipeline is necessary for detecting the leak location on the basis of acoustic signals. In this study, a 3D transient leakage acoustic wave propagation equation was derived by combining the principles of fluid dynamics and Lighthill acoustic analogy theory. The propagation of the leakage-induced noise in water supply pipeline was modelled theoretically. We simulated the propagation of a leakage acoustic wave under different conditions for different target scenarios encountered in actual pipeline inspections. Specifically, we analysed the effect of different factors, such as the pipe size and acoustic source characteristics, on acoustic propagation. Finally, the simulated experiments were practically performed using a self-designed simulated water supply pipeline and self-developed spherical water supply pipeline detector to validate the simulation analysis. The results of this study provide a theoretical guidance and basis for the analysis of characteristics of leakage acoustic wave signals and the recognition of leakage conditions in water supply pipelines.

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Detection of two-point leakages in a pipeline based on lab investigation and numerical simulation

Cited by 17 publications

References 18 publications

Prototipo virtual para la detección de fugas de agua potable

Prototipo virtual para la detección de fugas de agua potable

Two Simultaneous Leak Diagnosis in Pipelines Based on Input–Output Numerical Differentiation

Analysis of Propagation and Distribution Characteristics of Leakage Acoustic Waves in Water Supply Pipelines

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