Clean power in water supply systems as a sustainable solution: from planning to practical implementation

Ramos, Helena M.; Mello, Mário Fernando; De, Prabir

doi:10.2166/ws.2010.720

Cited by 68 publications

(50 citation statements)

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“…The adaptation of water supply systems to produce energy has the advantage of leveraging components that already exist. Furthermore, continuous supply is guaranteed by consumption throughout the day (Ramos et al 2010;Vieira and Ramos 2008;Kougias et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Simulated Annealing in Optimization of Energy Production in a Water Supply Network

Samora

Franca

Schleiss

et al. 2016

Water Resour Manage

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In water supply systems, the potential exists for micro-hydropower that uses the pressure excess in the networks to produce electricity. However, because urban drinking water networks are complex systems in which flows and pressure vary constantly, identification of the ideal locations for turbines is not straightforward, and assessment implies the need for simulation. In this paper, an optimization algorithm is proposed to provide a selection of optimal locations for the installation of a given number of turbines in a distribution network. A simulated annealing process was developed to optimize the location of the turbines by taking into account the hourly variation of flows throughout an average year and the consequent impact of this variation on the turbine efficiency. The optimization is achieved by considering the characteristic and efficiency curves of a turbine model for different impeller diameters as well as simulations of the annual energy production in a coupled hydraulic model. The developed algorithm was applied to the water supply system of the city Lausanne (Switzerland). This work focuses on the definition of the neighborhood of the simulated annealing process and the analysis of convergence towards the optimal solution for different restrictions and numbers of installed turbines.Water Resour Manage

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Section: Introductionmentioning

confidence: 99%

“…The approach of using stochastic optimization algorithms has been investigated in WSNs design and location of control valves (Ramos et al 2010;Araújo et al 2006;Farmani et al 2005;Cunha and Sousa 2001). Nevertheless, the use of these techniques for the current problem has not yet been thoroughly studied.…”

Section: Introductionmentioning

confidence: 99%

Simulated Annealing in Optimization of Energy Production in a Water Supply Network

Samora

Franca

Schleiss

et al. 2016

Water Resour Manage

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“…In particular the use of Pressure Reduction Valves (PRV) within the network is recommended to grant optimal pressure values in most of the network's nodes and minimal water volumes dispersed in leakages (Araujo et al 2006;Walsky et al 2006;Prescott and Ulanicki 2008;Xu et al 2014;Dai and Li 2016). Hydro Power Plants (HPP) represents a good alternative to PRV, reducing pressure and enhancing the energy efficiency of the water systems (Punys et al 2011;McNabola et al 2011;Gaius-obaseki 2010;Ramos et al 2010;Carravetta et al 2012). A new strategy is now available (Fecarotta et al 2014;Carravetta et al 2014aCarravetta et al , 2014bFecarotta et al 2016) for the design HPP using pump as turbines (PAT), in the presence of variable operating conditions, i.e.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Osmotic Desalination Plants for Water Supply Networks

Carravetta

Fecarotta

Golia

et al. 2016

Water Resour Manage

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Water scarcity and the poor quality of water resources are leading to a wider diffusion of desalination plants using the Reverse Osmosis (RO) process. Unfortunately, the cost of a cubic meter of fresh water produced by an RO plants is still high and many efforts are in progress to increase the efficiency of the membranes used in osmotic plants and to limit the energy required by the process. A further reduction of the energy cost could be obtained by an optimal operation of the desalination plant so reducing the hourly energy cost, or by coupling the RO plant with an energy production plant based on direct osmosis (Pressure Retarded Osmosis PRO). The economic viability of the desalination process has been analyzed until now without accounting for the integration of the RO plant with the existing water network. This analysis is developed in the present paper with reference to a hypothetical change of water supply in a real network, where a desalination plant is used to satisfy the fresh water demand. Several scenarios will be analyzed to assess the minimum cost of fresh water production and water supply to the network, including the use of energy recovery systems, such as an integrated use of RO and PRO processes, or the regulation of pressure at the network intake by a micro hydro power plant.

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“…De acordo com Ramos et al (2010), as mini turbinas são unidades que segundo informações dos fabricantes tem potencia inferior ao limite que se situa entre 1000 kW e 5000 kW, o que não aproxima daquela estabelecida anteriormente como a utilizada pelo Brasil, dentro da escala de100 a 1000 kW. Por outro lado, segundo Ramos et.…”

Section: Mini E Micro Turbinasunclassified

“…Segundo Ramos et al (2010), para obter o melhor aproveitamento da geração em pequenas hidrelétricas, é possível obter bons resultados utilizando-se de Bombas como Turbinas (PATs) como solução para a instalação em rede.…”

Section: Escolha Dos Equipamentos Eletro Mecânicosunclassified

Produção de energia por mini e micro hidrelétricas na rede de distribuição de água.

Sosnoski¹

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Hydropower energy production is facing limitations in their capacity to grow due directly to environmental and space limitations, questioning the actual economic benefits that hydropower have always had compared to other energy sources.In order to face this problems and to propose a new technology, the study focus on the potential of hydropower generation in the water supply system's (WSSs) network that are yet to be studied. Developing this new technology means the introduction of mini and micro hydropower plants in the WSS network.This study intends to develop a methodology and evaluate mini and micro hydropower potential, adopting optimization and modeling tools to accelerate and facilitate the identification procedures of potential installation points and the possibility of implementing pressure controls in the form of turbines in the network.The study considers all WSS peculiarities and restrictions, evaluating the introduction of electro hydraulic equipment and their interference and complementarity when considering energy consumption and production that would make the installation feasible.There is also a discussion about how will this technique be implemented in the network without interfering in water supply, and the logistics, costs and how energy distribution issues can be treated, including turbines type and configuration and also the activation timetables.All these features will be linked and treated with an optimization method that can provide decision making easier, locating production units and evaluating benefits and restrictions imposed by the environment.The construction of this procedure will be applied in a case study in the Piquete municipality in São Paulo, Brazil.Keywords: mini and micro hydropower, water supply system, optimization, ................................................................................................................. As técnicas usuais de geração de energia produzem dióxido e monóxido de carbono e estão constantemente sendo relacionadas com problemas de ordem climática e na questão de espaço e preservação de áreas nativas, ocupando grandes extensões para a construção de reservatórios mais especificamente no caso da energia hidrelétrica.Os centros urbanos muitas vezes ficam distantes dos pontos de geração de energia, causando perdas na transmissão e acarretando altos gastos na construção dos sistemas de transmissão.A localização das unidades geradoras é, portanto, fator que deve ser considerado na produção de energia, além da busca por fontes mais próximas aos centro consumidores, uma das alternativas almejadas atualmente.Em países europeus, as fontes naturais de energia, como a hidrelétrica, encontramse próximas ao aproveitamento limite (ESHA, 2014b).Assim, a produção de energia hidráulica, considerada uma fonte de energia "limpa", está em um estado maduro, enquanto a produção a partir de pequenas hidrelétricas encontra-se ainda abaixo dos possíveis níveis de aproveitamento, como explica Soffia, Claps e Poggi (2008).Deste modo, a busca por fontes d...

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Clean power in water supply systems as a sustainable solution: from planning to practical implementation

Cited by 68 publications

References 1 publication

Simulated Annealing in Optimization of Energy Production in a Water Supply Network

Simulated Annealing in Optimization of Energy Production in a Water Supply Network

Optimization of Osmotic Desalination Plants for Water Supply Networks

Produção de energia por mini e micro hidrelétricas na rede de distribuição de água.

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