Pressure management and residential consumption reduction

Oiarbide, Mikel; Almandoz, Javier; Arrizabalaga, Amaia Pavon; Arregui, Francisco J.

doi:10.2166/ws.2018.071

Cited by 5 publications

(2 citation statements)

References 5 publications

(8 reference statements)

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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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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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“…The impact of PM depends on the pressure [13] and on pipe materials [14]: pipe breaks in cast iron and asbestos cement pipes could be reduced by 18% to 30% by reducing the average supply pressure [15]. Network operating pressure is also directly related to customer demand; thus, PM is an efficient tool in water scarcity scenarios to secure constant and reliable service to customers with the right level of pressure for the whole day [16]. However, PM for demand management and consumption reduction is not as widely used as it is for leakage reduction purposes.…”

Section: Introductionmentioning

confidence: 99%

Advanced Pressure Management for Sustainable Leakage Reduction and Service Optimization: A Case Study in Central Chile

et al. 2022

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The central part of Chile has been in severe unprecedented drought for more than ten years, becoming a water-stressed area. ESVAL, one of the main water utilities in the Chilean water sector, is responsible for delivering potable water to the population and securing long-term supply in the vast majority of this area. In order to achieve this goal, ESVAL is implementing different measures, with pressure management being one of them. This paper aims to describe the works executed in La Calera city to implement a new advanced pressure management scheme on an existing pressure-reducing valve with two main targets: reducing leakage and improving the level of service to the customers. The results show that advance pressure management generates a 10.12% reduction in the minimum night flow while, at the same time, helping to improve the level of service to the customers reducing the number of times pressure falls below the minimum target set by ESVAL by 52%. It is concluded that pressure management facilitates quick water savings by optimizing the performance of existing pressure-reducing valves.

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An economic valuation model for alternative pressure management schemes in water distribution networks

2020

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Pressure management and residential consumption reduction

Cited by 5 publications

References 5 publications

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

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

Advanced Pressure Management for Sustainable Leakage Reduction and Service Optimization: A Case Study in Central Chile

An economic valuation model for alternative pressure management schemes in water distribution networks

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