Propuesta Para La Transición De Un Sistema Con Suministro De Agua Intermitente a Suministro Continuo

Ayza, Ilaya; Ernesto, Amilkar

doi:10.4995/thesis/10251/67931

Cited by 3 publications

(7 citation statements)

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“…The frequency or periodicity with which water is supplied is not definite either, it is generally considered daily [29], although in extreme cases it lasts more than one day [30], and water has overall an "infrequent availability" [31]. In certain intermittent networks like Jeddah, Port-au-Prince, or Coimbatore, the adopted water distribution schedule is weekly or even monthly rather than day to day, the limitation in time is persistent but the supply times and their periodicity are diverse.…”

Section: Definition Of Intermittencymentioning

confidence: 99%

“…In an intermittently supplied system, the hydraulic conditions associated with consumer behavior and strategic decisions result in inequitable water allocation [19,29,30,[64][65][66][67].…”

Section: Social and Political Problems Imentioning

confidence: 99%

“…These problems lead water utilities to question the relevance of installing meters for this type of supply, but their absence generates other complications such as the obligation to introduce flat-rate or roughly evaluated billing [63], and the difficulty of estimating network performance. In an intermittently supplied system, the hydraulic conditions associated with consumer behavior and strategic decisions result in inequitable water allocation [19,29,30,[64][65][66][67].…”

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confidence: 99%

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Building a Methodology for Assessing Service Quality under Intermittent Domestic Water Supply

Mokssit

Gouvello

Chazerain

et al. 2018

Water

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This document proposes a methodology for assessing the quality of water distribution service in the context of intermittent supply, based on a comparison of joint results from literature reviews and feedback from drinking water operators who had managed these networks, with standards for defining the quality of drinking water service. The paper begins by reviewing and proposing an analysis of the definition and characterization of intermittent water supply (IWS), highlighting some important findings. The diversity of approaches used to address the issue and the difficulty of defining a precise and detailed history of water supply in the affected systems broadens the spectrum of intermittency characterization and the problems it raises. The underlined results are then used to structure an evaluation framework for the water service and to develop improvement paths defined in the intermittent networks. The resulting framework highlights the means available to water stakeholders to assess their operational and management performance in achieving the improvement objectives defined by the environmental and socio-economic contexts in which the network operates. Practical examples of intermittent system management are collected from water system operators and presented for illustration purposes (Jeddah, Algiers, Port-au-Prince, Amman, Cartagena, Barranquilla, Mexico, Cancun, Saltillo, Mumbai, Delhi, Coimbatore . . .).

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Section: Definition Of Intermittencymentioning

confidence: 99%

“…In an intermittently supplied system, the hydraulic conditions associated with consumer behavior and strategic decisions result in inequitable water allocation [19,29,30,[64][65][66][67].…”

Section: Social and Political Problems Imentioning

confidence: 99%

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confidence: 99%

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Building a Methodology for Assessing Service Quality under Intermittent Domestic Water Supply

Mokssit

Gouvello

Chazerain

et al. 2018

Water

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“…We claim that in special cases, for example when a recognized expert, or group of experts, on a subject is confronted with a large number of related items, and there is no clear possibility of clustering them following some homogeneity criteria as suggested in [16], then comparison matrices of more than the traditional 7 ± 2 elements may be valid. This is the most salient feature of the case study we address in this paper: a water distribution system (WDS) previously divided into 15 metered areas (sectors) [22] within a project intended to optimally transform intermittent into continuous supply. A team of experts working on a daily basis with the management and operation of the water system were confronted with the problem of clarifying the ease of operation of the individual sectors following their subjective perception about the operating difficulties experienced in each sector, since that level of difficulty would greatly influence the transition process [22].…”

Section: Introductionmentioning

confidence: 99%

Consistent clustering of entries in large pairwise comparison matrices

Benítez

Carpitella

Certa

et al. 2018

Journal of Computational and Applied Mathematics

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In multi-attribute decision making the number of decision elements under consideration may be huge, especially for complex, real-world problems. Typically these elements are clustered and then the clusters organized hierarchically to reduce the number of elements to be simultaneously handled. These decomposition methodologies are intended to bring the problem within the cognitive ability of decision makers. However, such methodologies have disadvantages, and it may happen that such a priori clustering is not clear, and/or the problem has previously been addressed without any grouping action. This is the situation for the case study we address, in which a panel of experts gives opinions about the operation of 15 previously established district metered areas in a real water distribution system. Large pairwise comparison matrices may also be found when building comparisons of elements using large bodies of information. In this paper, we address a consistent compression of an AHP comparison matrix that collapses the judgments corresponding to a given number of compared elements. As a result, an a posteriori clustering of various elements becomes possible. In our case study, such a clustering offers several added benefits, including the identification of hidden or unknown criteria to cluster the considered elements of the problem.

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“…As a result, areas or groups of sectors with similar operating characteristics are defined based on the opinion of water company technicians. This poses a new scenario (see the Therefore, it becomes a very useful tool for the technical management of intermittent water supply systems, and is a fundamental criterion for a future transition to a continuous water supply (Ilaya-Ayza, 2016;Ilaya-Ayza et al, 2016;.…”

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Multi-criteria decision methods to support the maintenance management of complex systems

Carpitella¹

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A thesis under a co-tutelle agreement between UNIPA and UPV within their respective programmes of doctorates in "PROF. ALFREDO PERIS (UPV) THE TUTORS PROF. ANTONELLA CERTA (UNIPA) PROF. JULIO BENÍTEZ (UPV) PROF. JOAQUÍN IZQUIERDO (UPV)To my father, my mother and Nino The rock upon which I stand ACKNOWLEDGMENTS Three years ago I undertook a long and difficult, but beautiful journey, called a double PhD. It has been so challenging and undoubtedly the most important personal achievement of my whole life so far. I compared myself with something I thought was much bigger than me. Actually, in order to accomplish it successfully, I just needed to fully involve my heart. I did it without saving my strengths. What I have learnt during my doctorate will remain with me forever. Not only did I further develop my professional skills and my attitude to scientific research, but above all I made real my passion for discovery. Discovering the world, meeting new people, appreciating diversity, considering various manners of working and living, learning new languages, facing my weaknesses and getting over them. All of the things listed above unquestionably influenced my personal development. And personal growth is an endless process. It goes without saying that this doctoral thesis is the result of all my efforts and love. I dedicate it… To my father and my mother, the most important people in my life. I wish I could be even half as good person and engineer as they are. All that I am I owe to my parents. To my brother Nino, who is for me the best example of courage and who has had right answers to my doubts since we were just children. To my grandma Wilma, a great woman to whom I owe most of my personality. To all my family, especially to my grandparents Maria and Mario, and to my cousins/sisters Paola, Luisa and Carla. To Antonella and Joaquín, my "academic parents" and continuous sources of inspiration, who have transmitted me all their passion for this incredible job and taken care of my personal and professional growth in every possible way. They made my horizon larger and pushed me to continuously challenge myself. I consider them as a true family, more life-mentors rather than professors, and I will be always aware of the fundamental part they play in my life. To Julio, who has been indispensable to carry out this thesis and carefully followed all the stages of its development, with endless competence and kindness. It has been a true privilege to work with such a source of knowledge as Julio is. To Professor Giacomo Galante, who first believed in me when I was an undergraduate student and, after having supervised my master thesis, introduced me to the University world. To Professor Mario Enea, who kindly and fully supported me during the whole duration of my doctorate studies. To Manu and Idel, who treat me as I was their little sister, giving me a lot of attention and dedicating a lot of their priceless time (days, weeks, months) to teach me loads of things. They guided me across unforgettable and thought-provoking internat...

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Propuesta Para La Transición De Un Sistema Con Suministro De Agua Intermitente a Suministro Continuo

Cited by 3 publications

References 0 publications

Building a Methodology for Assessing Service Quality under Intermittent Domestic Water Supply

Building a Methodology for Assessing Service Quality under Intermittent Domestic Water Supply

Consistent clustering of entries in large pairwise comparison matrices

Multi-criteria decision methods to support the maintenance management of complex systems

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