Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction

In intermittent drinking water distribution systems, large volumes of the water are wasted due to leaks in the distribution networks. Similarly, user service is not always satisfied in the time required to fill the storage, nor with sufficient pressure. Hence the importance of this study. Measuring...

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Autores principales:	Jesús Rubén Sánchez-Navarro, David H. Sánchez, Carmen J. Navarro-Gómez, Eduardo Herrera Peraza
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	duty cycle intermittent water supply multivariate statistical techniques pressure sensors 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/40f3ffd0a2e24a4aa0af233ffc1cdd40
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spelling	oai:doaj.org-article:40f3ffd0a2e24a4aa0af233ffc1cdd402021-11-23T18:57:06ZMultivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction1606-97491607-079810.2166/ws.2021.153https://doaj.org/article/40f3ffd0a2e24a4aa0af233ffc1cdd402021-11-01T00:00:00Zhttp://ws.iwaponline.com/content/21/7/3932https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798In intermittent drinking water distribution systems, large volumes of the water are wasted due to leaks in the distribution networks. Similarly, user service is not always satisfied in the time required to fill the storage, nor with sufficient pressure. Hence the importance of this study. Measuring the variability of pressure in the distribution network and determining the factors that influence the definition of a sufficient minimum hours of service, is a first step to change to a continuous service 24/7, in order to minimize the volumes of lost water and meet demand. In total, 347 pressure sensors were placed in a network to detect changes in pressure and obtain data for 3 years. This study presents a new approach to determine the operating policy of the operating agency that provides the service intermittently. Two objectives are pursued: pressure variability – to minimize leaks – and define the minimum hours of service. The analysis was performed using multivariate statistical techniques, including principal component analysis, correlation matrix and ANOVAs, to explore the association between objectives. The results obtained show that the pressure distribution has a Gaussian behavior and that the hours of service have a Poisson distribution. HIGHLIGHTS A pressure range between 7 and 30 mwc is essential for user satisfaction.; A minimum of 6 hours of service is recommended in IWS systems.; The behavior of service hours is not linear but exponential in its effect on the satisfaction of demand.; Multivariate analysis is an adequate technique to facilitate the decision making in a water supply system.; Pressure variation has normal behavior regardless of the number of hours supplied.;Jesús Rubén Sánchez-NavarroDavid H. SánchezCarmen J. Navarro-GómezEduardo Herrera PerazaIWA Publishingarticleduty cycleintermittent water supplymultivariate statistical techniquespressure sensorsWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 7, Pp 3932-3945 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	duty cycle intermittent water supply multivariate statistical techniques pressure sensors Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	duty cycle intermittent water supply multivariate statistical techniques pressure sensors Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Jesús Rubén Sánchez-Navarro David H. Sánchez Carmen J. Navarro-Gómez Eduardo Herrera Peraza Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
description	In intermittent drinking water distribution systems, large volumes of the water are wasted due to leaks in the distribution networks. Similarly, user service is not always satisfied in the time required to fill the storage, nor with sufficient pressure. Hence the importance of this study. Measuring the variability of pressure in the distribution network and determining the factors that influence the definition of a sufficient minimum hours of service, is a first step to change to a continuous service 24/7, in order to minimize the volumes of lost water and meet demand. In total, 347 pressure sensors were placed in a network to detect changes in pressure and obtain data for 3 years. This study presents a new approach to determine the operating policy of the operating agency that provides the service intermittently. Two objectives are pursued: pressure variability – to minimize leaks – and define the minimum hours of service. The analysis was performed using multivariate statistical techniques, including principal component analysis, correlation matrix and ANOVAs, to explore the association between objectives. The results obtained show that the pressure distribution has a Gaussian behavior and that the hours of service have a Poisson distribution. HIGHLIGHTS A pressure range between 7 and 30 mwc is essential for user satisfaction.; A minimum of 6 hours of service is recommended in IWS systems.; The behavior of service hours is not linear but exponential in its effect on the satisfaction of demand.; Multivariate analysis is an adequate technique to facilitate the decision making in a water supply system.; Pressure variation has normal behavior regardless of the number of hours supplied.;
format	article
author	Jesús Rubén Sánchez-Navarro David H. Sánchez Carmen J. Navarro-Gómez Eduardo Herrera Peraza
author_facet	Jesús Rubén Sánchez-Navarro David H. Sánchez Carmen J. Navarro-Gómez Eduardo Herrera Peraza
author_sort	Jesús Rubén Sánchez-Navarro
title	Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
title_short	Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
title_full	Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
title_fullStr	Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
title_full_unstemmed	Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
title_sort	multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/40f3ffd0a2e24a4aa0af233ffc1cdd40
work_keys_str_mv	AT jesusrubensancheznavarro multivariateanalysisofthepressurevariationinintermittentwatersupplysystemsandtheimpactondemandsatisfaction AT davidhsanchez multivariateanalysisofthepressurevariationinintermittentwatersupplysystemsandtheimpactondemandsatisfaction AT carmenjnavarrogomez multivariateanalysisofthepressurevariationinintermittentwatersupplysystemsandtheimpactondemandsatisfaction AT eduardoherreraperaza multivariateanalysisofthepressurevariationinintermittentwatersupplysystemsandtheimpactondemandsatisfaction
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Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction

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