Simulation of a leak's growth process in water distribution systems based on growth functions

Water loss in water distribution systems is one of the major problems faced by water utilities. The components of water losses should be accurately assessed and their priority should be determined. Generally, water balance analysis is used to quantify different components of water losses and identif...

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Autores principales:	Guancheng Guo, Shuming Liu, Dailin Jia, Shanhe Wang, Xue Wu
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	growth function leak duration leak flow rate real loss water distribution system Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ba4508d388654926bd2e113159fbf3c0
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spelling	oai:doaj.org-article:ba4508d388654926bd2e113159fbf3c02021-11-05T17:08:35ZSimulation of a leak's growth process in water distribution systems based on growth functions2709-80282709-803610.2166/aqua.2021.021https://doaj.org/article/ba4508d388654926bd2e113159fbf3c02021-06-01T00:00:00Zhttp://aqua.iwaponline.com/content/70/4/521https://doaj.org/toc/2709-8028https://doaj.org/toc/2709-8036Water loss in water distribution systems is one of the major problems faced by water utilities. The components of water losses should be accurately assessed and their priority should be determined. Generally, water balance analysis is used to quantify different components of water losses and identify the main contributor to high leakage rates. The leak flow rate is assumed to be static within a given calculation period during the calculation of real losses. Errors will inevitably arise during this process. This is mainly due to our limited understanding of a leak's growth process. To overcome this problem, the current work proposes the use of growth functions to represent a leak's growth process and establish a functional relationship between the leak flow rate and the leak duration. A leakage development model is adopted to simulate a leak's growth process and optimize the parameters of growth functions. The results show that the Richards function performs better than other growth functions and its mean absolute percentage error is 15.33%. Furthermore, the growth function could be used to calculate real losses and has the prospect of evaluating the effects of leakage detection. HIGHLIGHTS The growth function can be used to represent a leak's growth process.; The leakage development model is adopted to simulate a leak's growth process.; The proposed calculation method of real losses considers a leak's evolution process.; The detection coefficient is proposed to evaluate leakage detection efficiency.;Guancheng GuoShuming LiuDailin JiaShanhe WangXue WuIWA Publishingarticlegrowth functionleak durationleak flow ratereal losswater distribution systemEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENAqua, Vol 70, Iss 4, Pp 521-536 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	growth function leak duration leak flow rate real loss water distribution system Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	growth function leak duration leak flow rate real loss water distribution system Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Guancheng Guo Shuming Liu Dailin Jia Shanhe Wang Xue Wu Simulation of a leak's growth process in water distribution systems based on growth functions
description	Water loss in water distribution systems is one of the major problems faced by water utilities. The components of water losses should be accurately assessed and their priority should be determined. Generally, water balance analysis is used to quantify different components of water losses and identify the main contributor to high leakage rates. The leak flow rate is assumed to be static within a given calculation period during the calculation of real losses. Errors will inevitably arise during this process. This is mainly due to our limited understanding of a leak's growth process. To overcome this problem, the current work proposes the use of growth functions to represent a leak's growth process and establish a functional relationship between the leak flow rate and the leak duration. A leakage development model is adopted to simulate a leak's growth process and optimize the parameters of growth functions. The results show that the Richards function performs better than other growth functions and its mean absolute percentage error is 15.33%. Furthermore, the growth function could be used to calculate real losses and has the prospect of evaluating the effects of leakage detection. HIGHLIGHTS The growth function can be used to represent a leak's growth process.; The leakage development model is adopted to simulate a leak's growth process.; The proposed calculation method of real losses considers a leak's evolution process.; The detection coefficient is proposed to evaluate leakage detection efficiency.;
format	article
author	Guancheng Guo Shuming Liu Dailin Jia Shanhe Wang Xue Wu
author_facet	Guancheng Guo Shuming Liu Dailin Jia Shanhe Wang Xue Wu
author_sort	Guancheng Guo
title	Simulation of a leak's growth process in water distribution systems based on growth functions
title_short	Simulation of a leak's growth process in water distribution systems based on growth functions
title_full	Simulation of a leak's growth process in water distribution systems based on growth functions
title_fullStr	Simulation of a leak's growth process in water distribution systems based on growth functions
title_full_unstemmed	Simulation of a leak's growth process in water distribution systems based on growth functions
title_sort	simulation of a leak's growth process in water distribution systems based on growth functions
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/ba4508d388654926bd2e113159fbf3c0
work_keys_str_mv	AT guanchengguo simulationofaleaksgrowthprocessinwaterdistributionsystemsbasedongrowthfunctions AT shumingliu simulationofaleaksgrowthprocessinwaterdistributionsystemsbasedongrowthfunctions AT dailinjia simulationofaleaksgrowthprocessinwaterdistributionsystemsbasedongrowthfunctions AT shanhewang simulationofaleaksgrowthprocessinwaterdistributionsystemsbasedongrowthfunctions AT xuewu simulationofaleaksgrowthprocessinwaterdistributionsystemsbasedongrowthfunctions
_version_	1718444122105184256

Simulation of a leak's growth process in water distribution systems based on growth functions

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