Dynamic Effects of a Regulating Valve in the Assessment of Water Leakages in Single Pipelines

Oscar E. Coronado-Hernández (), Modesto Pérez-Sánchez (), Alfonso Arrieta-Pastrana (), Vicente S. Fuertes-Miquel (), Jairo R. Coronado-Hernández (), Edgar Quiñones-Bolaños () and Helena M. Ramos ()
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Oscar E. Coronado-Hernández: Universidad de Cartagena
Modesto Pérez-Sánchez: Universitat Politècnica de València
Alfonso Arrieta-Pastrana: Universidad de Cartagena
Vicente S. Fuertes-Miquel: Universitat Politècnica de València
Jairo R. Coronado-Hernández: Universidad de la Costa
Edgar Quiñones-Bolaños: Universidad de Cartagena
Helena M. Ramos: Instituto Superior Técnico, University of Lisbon

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2024, vol. 38, issue 8, No 13, 2889-2903

Abstract: Abstract Water losses in water distribution systems are typically analysed using extended period simulations, where its numerical resolution is commonly achieved using the gradient method. These models assume that adjustments to regulating valves occur, either manually or automatically, over an extended period of time, then the system inertia can be neglected. This research introduces the development of a rigid water column model for analysing water leakages in single pipelines, which can be employed to account for regulation valve adjustments in shorter time periods, thereby providing greater accuracy when assessing water losses. The application to a case study is presented to analyse pressure variations and leakage flow patterns over 30, 60, and 180 s. A comparison between the extended period simulation and rigid water column model is presented in order to note the order of magnitude on leakages when the system inertia is not considered. The results confirm that is crucial for water utilities the consideration of inertial system to simulate adequately opening and closure manoeuvres in water distribution systems, since according to the case study the extended period simulation can overestimated or underestimated the total leakage volume in percentages of 37.1 and 55.2 $$\%$$ % , respectively.

Keywords: Leakages; Rigid water column model; Pipelines; Transient flow; Water distribution system (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11269-024-03797-w

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