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The drive for sustainable societies with more resilient infrastructure networks has catalyzed interest in leakage reduction as a subsequent benefit to energy recovery in water distribution systems. Several researchers have conducted studies and piloted successful energy recovery installations in water distribution systems globally. Challenges remai...
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... large markers were used for each pipe replacement scenario to indicate the average modelled leakage reduction and energy recovery. Figure 9 shows the location of the three energy recovery locations (sites) for the top five proposed energy recovery solutions for Scenario 3b with 10%, 25%, and 50% of all the "aged" pipes, whereas Table 9 shows the comparison between the solutions for Scenario 3b and the base case scenario. Some of the top five proposed energy recovery solutions identified the same or very similar locations for more than one solution. ...
Context 2
... previous observation is reinforced by Figure 9, which shows the average distribution of solutions for the 50% pipe replacement scenario similar to the optimum solution for the base case scenario; • In all scenarios, several solutions are contained in the main supply lines from the Jonkershoek Weir. These supply lines carry the largest flow volumes resulting in large energy recovery potential changes with small induced headloss. ...
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The consideration of isolation valves and segments is essential for evaluating the water service and resilience of water distribution systems when shutdowns are required under pipe failure. However, little work has been done on assessing the resilience response and intervention based on segments. This study investigates the impact of intervention (...
Citations
... The optimal positioning of hydro-turbines in WDNs was investigated by several papers, adopting different techniques for solving the optimization problem (Table S3 in the Supplementary material). As was the case for PAT devices, the principal goal was to maximize energy recovery (Coelho and Andrade-Campos 2018;Bonthuys, Van Dijk, and Cavazzini 2020a;Bonthuys et al., 2021;Morani et al. 2022;Hamlehdar et al. 2022), in combination with leakage minimization (Bonthuys, van Dijk, and Cavazzini 2020a;Bonthuys et al., 2021) or economic benefit maximization (Hamlehdar et al. 2022) or with both objectives (Morani et al. 2022). Again, EPANET was the most adopted solver (Coelho and Andrade-Campos 2018; Bonthuys, Van Dijk, and Cavazzini 2020b; Bonthuys et al., 2021;Hamlehdar et al. 2022) with the modelling of the turbine as a local head loss. ...
... The optimal positioning of hydro-turbines in WDNs was investigated by several papers, adopting different techniques for solving the optimization problem (Table S3 in the Supplementary material). As was the case for PAT devices, the principal goal was to maximize energy recovery (Coelho and Andrade-Campos 2018;Bonthuys, Van Dijk, and Cavazzini 2020a;Bonthuys et al., 2021;Morani et al. 2022;Hamlehdar et al. 2022), in combination with leakage minimization (Bonthuys, van Dijk, and Cavazzini 2020a;Bonthuys et al., 2021) or economic benefit maximization (Hamlehdar et al. 2022) or with both objectives (Morani et al. 2022). Again, EPANET was the most adopted solver (Coelho and Andrade-Campos 2018; Bonthuys, Van Dijk, and Cavazzini 2020b; Bonthuys et al., 2021;Hamlehdar et al. 2022) with the modelling of the turbine as a local head loss. ...
... As was the case for PAT devices, the principal goal was to maximize energy recovery (Coelho and Andrade-Campos 2018;Bonthuys, Van Dijk, and Cavazzini 2020a;Bonthuys et al., 2021;Morani et al. 2022;Hamlehdar et al. 2022), in combination with leakage minimization (Bonthuys, van Dijk, and Cavazzini 2020a;Bonthuys et al., 2021) or economic benefit maximization (Hamlehdar et al. 2022) or with both objectives (Morani et al. 2022). Again, EPANET was the most adopted solver (Coelho and Andrade-Campos 2018; Bonthuys, Van Dijk, and Cavazzini 2020b; Bonthuys et al., 2021;Hamlehdar et al. 2022) with the modelling of the turbine as a local head loss. Evolutionary algorithms were the most adopted technique for the optimization of hydro-turbine locations (Bonthuys, Van Dijk, and Cavazzini 2020a;Bonthuys et al. 2021), also considering the multiobjective approach (Hamlehdar et al. 2022). ...
Water distribution networks (WDNs) are significant users of energy and contributors to greenhouse gas emissions. Energy recovery strategies (ERSs) have potential for switching WDNs to a renewable energy source, thereby assisting with the transition to net-zero emissions and reducing the dependency of water
utilities on power-grids. To address the current lack of understanding of the potential for ERSs to achieve these goals, this work presents a holistic review, which considers all available devices, i.e. turbines, pumps as turbines, and other alternative strategies, such as the GreenValves, as well as all the kinds of application in the literature. Besides describing the latest most significant achievements in the context of ERSs, the
review also identifies the most common issues and proposes several future research directions, including the need for a better test and comparison of the various available solutions in field applications, and more thorough analyses of the socio/political problems hampering their diffusion.
... The rotation of the generator converts mechanical energy into electrical energy. The amount of the generated energy can be determined by the water flow, the size of the turbines, and many other factors [7]. ...
Water transmission lines have potential reserved energy, which is usually lost. Therefore, targeting this clean energy to produce electricity to power up the auxiliaries and utilities of water plants or consumers is financially and environmentally beneficial. This paper aims to investigate the feasibility of installing an inline hydropower system in an existing transmission water pipe. It analyzes the feasibility of implementing a mini-hydropower plant in the transmission line of Liwa’s reservoir in the UAE. The maximum possible power harvested is 218.175 kW at the given water flow rate and net head. The payback period and the return on investment are analyzed based on different scenarios related to capital investment, operation, maintenance cost, and plant capacity factor. It is found that the payback period ranges between one to six years, where the return on investment can be as high as 85%. Furthermore, the expected CO2 emissions saving for this project is calculated to be between 395 and 1939 tons per year.
... Por esse motivo, soluções de reabilitação e intervenções que garantam o consumo deste recurso sem interrupção são constantemente implementadas para longo e médio prazo (D'Ercole et al., 2018). Durante a reabilitação de redes de distribuição deágua, diferentes opções estãoà disposição do operador, tais como: aumentar a potência das estações de bombeamento (Móller et al., 2020), limpar, revestir ou trocar tubulações antigas (Sarbu, 2021), consertar vazamentos (Bonthuys et al., 2021), aumentar a capacidade dos reservatórios (Viccione et al., 2019), etc. Entretanto, dado o custo elevado de implementação de melhorias na rede, nem sempre todas as possibilidades para reabilitação podem ser testadas e confrontadas. ...
Water distribution networks (WDNs) require proactive maintenance methods in order to ensure its correct functioning. Failures, such as leakages and pipe deterioration, lead consumers to bad experiences such as having water supply services interrupted. In this paper, the focus is to improve a WDN. First, we set a pattern curve and the objective function will achieve a pre-established value of minimum pressure to all nodes in the system. Three options are available: pipe replacement, pipe cleaning and leakage fixing. Thus, by considering a limited budget, the most economic solution must be determinated to attend the operational pressure and, at the same time, lead to the minimum mean pressure during 24 hours of operation. In this development, we used the Particle Swarm Optimization (PSO) method. The results point to a tool with huge potential of implementation in WDNs rehabilitation.
Editorial of special issue in Sustainability journal
