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Water 2016, 8(6), 234; doi:10.3390/w8060234

Modeling Irrigation Networks for the Quantification of Potential Energy Recovering: A Case Study

1
Hydraulic and Environmental Engineering Department, Universitat Politècnica de València, Valencia 46022, Spain
2
Rural and Agrifood Engineering Department, Universitat Politècnica de València, Valencia 46022, Spain
3
Civil Engineering, Architecture and Georesources Departament, CERIS, Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1049-001, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Ashok K. Chapagain
Received: 29 February 2016 / Revised: 13 May 2016 / Accepted: 26 May 2016 / Published: 1 June 2016
(This article belongs to the Special Issue Water Systems towards New Future Challenges)

Abstract

Water irrigation systems are required to provide adequate pressure levels in any sort of network. Quite frequently, this requirement is achieved by using pressure reducing valves (PRVs). Nevertheless, the possibility of using hydraulic machines to recover energy instead of PRVs could reduce the energy footprint of the whole system. In this research, a new methodology is proposed to help water managers quantify the potential energy recovering of an irrigation water network with adequate conditions of topographies distribution. EPANET has been used to create a model based on probabilities of irrigation and flow distribution in real networks. Knowledge of the flows and pressures in the network is necessary to perform an analysis of economic viability. Using the proposed methodology, a case study has been analyzed in a typical Mediterranean region and the potential available energy has been estimated. The study quantifies the theoretical energy recoverable if hydraulic machines were installed in the network. Particularly, the maximum energy potentially recovered in the system has been estimated up to 188.23 MWh/year) with a potential saving of non-renewable energy resources (coal and gas) of CO2 137.4 t/year. View Full-Text
Keywords: smart water; water-energy nexus; energy efficiency; sustainable water management; energy recovering smart water; water-energy nexus; energy efficiency; sustainable water management; energy recovering
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pérez-Sánchez, M.; Sánchez-Romero, F.J.; Ramos, H.M.; López-Jiménez, P.A. Modeling Irrigation Networks for the Quantification of Potential Energy Recovering: A Case Study. Water 2016, 8, 234.

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