Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline

Leakage in transmission pipelines and water distribution networks causes water and energy loss and reduces water quality. The accuracy of leakage detection using transient-based methods depends on several factors. This study investigated the sensitivity of location and size of leaks in simple polyet...

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Autores principales:	Iraj Rezapour, Mahmood Shafai Bejestan, Babak Aminnejad
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	inverse transient analysis leak detection sensitivity analysis time domain viscoelastic pipeline Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/41cab22055ba4b9196a5832ef3bf508c
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spelling	oai:doaj.org-article:41cab22055ba4b9196a5832ef3bf508c2021-11-23T18:56:57ZCase study of leak detection based on Gaussian function in experimental viscoelastic water pipeline1606-97491607-079810.2166/ws.2021.145https://doaj.org/article/41cab22055ba4b9196a5832ef3bf508c2021-11-01T00:00:00Zhttp://ws.iwaponline.com/content/21/7/3860https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Leakage in transmission pipelines and water distribution networks causes water and energy loss and reduces water quality. The accuracy of leakage detection using transient-based methods depends on several factors. This study investigated the sensitivity of location and size of leaks in simple polyethylene transmission pipelines to dynamic parameters, flow regime, sample size, spatial-step increment, and leak size and location. For this purpose, a hydraulic transient solver was first developed to take into account the dynamic effects of unsteady friction, viscoelasticity of the pipe wall, and the leak. The leakage was assumed to function with a quasi-normal distribution around its real location to reduce problem dimensionality and unnecessary computations. This approach was evaluated based on experimental transient data in which leaks were simulated in different sizes and locations. Results revealed that the hydraulic transient model that includes only viscoelasticity effects could pinpoint leakage characteristics. The sample size evaluation indicated that half and a single period of the pressure signal are sufficient to determine the leakage location and size in simple viscoelastic transmission pipelines, respectively. The optimal ratio of the spatial step to pipe length (Δx/L) was 0.025. HIGHLIGHTS Sensitivity analysis of leak detection and sizing in the viscoelastic pipeline.; Leakage simulation using a new approach with a quasi-normal distribution function.; Development of an experimental transient model to evaluate the proposed approach.;Iraj RezapourMahmood Shafai BejestanBabak AminnejadIWA Publishingarticleinverse transient analysisleak detectionsensitivity analysistime domainviscoelastic pipelineWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 7, Pp 3860-3874 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	inverse transient analysis leak detection sensitivity analysis time domain viscoelastic pipeline Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	inverse transient analysis leak detection sensitivity analysis time domain viscoelastic pipeline Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Iraj Rezapour Mahmood Shafai Bejestan Babak Aminnejad Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline
description	Leakage in transmission pipelines and water distribution networks causes water and energy loss and reduces water quality. The accuracy of leakage detection using transient-based methods depends on several factors. This study investigated the sensitivity of location and size of leaks in simple polyethylene transmission pipelines to dynamic parameters, flow regime, sample size, spatial-step increment, and leak size and location. For this purpose, a hydraulic transient solver was first developed to take into account the dynamic effects of unsteady friction, viscoelasticity of the pipe wall, and the leak. The leakage was assumed to function with a quasi-normal distribution around its real location to reduce problem dimensionality and unnecessary computations. This approach was evaluated based on experimental transient data in which leaks were simulated in different sizes and locations. Results revealed that the hydraulic transient model that includes only viscoelasticity effects could pinpoint leakage characteristics. The sample size evaluation indicated that half and a single period of the pressure signal are sufficient to determine the leakage location and size in simple viscoelastic transmission pipelines, respectively. The optimal ratio of the spatial step to pipe length (Δx/L) was 0.025. HIGHLIGHTS Sensitivity analysis of leak detection and sizing in the viscoelastic pipeline.; Leakage simulation using a new approach with a quasi-normal distribution function.; Development of an experimental transient model to evaluate the proposed approach.;
format	article
author	Iraj Rezapour Mahmood Shafai Bejestan Babak Aminnejad
author_facet	Iraj Rezapour Mahmood Shafai Bejestan Babak Aminnejad
author_sort	Iraj Rezapour
title	Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline
title_short	Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline
title_full	Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline
title_fullStr	Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline
title_full_unstemmed	Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline
title_sort	case study of leak detection based on gaussian function in experimental viscoelastic water pipeline
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/41cab22055ba4b9196a5832ef3bf508c
work_keys_str_mv	AT irajrezapour casestudyofleakdetectionbasedongaussianfunctioninexperimentalviscoelasticwaterpipeline AT mahmoodshafaibejestan casestudyofleakdetectionbasedongaussianfunctioninexperimentalviscoelasticwaterpipeline AT babakaminnejad casestudyofleakdetectionbasedongaussianfunctioninexperimentalviscoelasticwaterpipeline
_version_	1718416149252669440

Case study of leak detection based on Gaussian function in experimental viscoelastic water pipeline

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