Pressure Reduction for Water Loss Management: A Statistical Evaluation of Water Consumption Considering Customer Storage Tanks

Sodek, Daniela Bonazzi; Martim, André Luís Sotero Salustiano; Filho, José Gilberto Dalfré; Luvizotto, Edevar

doi:10.1061/(asce)wr.1943-5452.0001627

Cited by 1 publication

(1 citation statement)

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“…The utilization of pressure reducing valves (PRV) in water distribution networks (WDN) is widely extended as a tool to reduce leakage [1][2][3], lower burst frequency [4], improve level of service to the customers [5] and, to a minor extent, and mainly under water scarcity situations, manage customer consumption [6,7]. Most of the water utilities across the world have implemented working plans to install this type of valves to achieve one or various of the mentioned targets [8].…”

Section: Introductionmentioning

confidence: 99%

Application of Time-Controlled Critical Point in Pressure Reducing Valves: A Case Study in North Spain

Ortega-Ballesteros,

Muñoz-Rodríguez,

Aguilera-Ureña

et al. 2023

Applied Sciences

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Potable water utilities are currently making great efforts to reduce leakage rates and assure long-term supply to the population due to the challenges of climate change, growing population and water shortage scenarios that have been on them over the last years. One of the most employed methods to reduce leakage includes the installation of pressurereducing valves along the water distribution network and the utilization of pressure management schemes. Pressure management includes different types of control models, which are applied according to the requirements of each site. The most advanced and sophisticated scheme is critical point control, which relies on a flow signal from a measuring device or online communication between the critical point and the valve. This paper proposes the utilization of a seasonal autoregressive integrated moving average, or the SARIMA model, to correlate pressure at the outlet of the valve and pressure on the critical point of the area supplied, aiming to set a fixed pressure in the critical point. The SARIMA model is developed according to historical data logged in the field and then validated. Later, the SARIMA model was tested on a real location in the village of Noja, Spain. The analysis of the field test results prove that the proposed model is feasible to be used since there is no significance difference between the target values set in the critical point and the real values measured in the field. The research proves that the SARIMA model can be used as an alternative for critical point control in water distribution networks when no flow signal is available or when communication between the critical point and the pressure reducing valve is not an option.

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