New Model for Determining Optimal PAT Locations: Maximizing Energy Recovery in Irrigation Networks
Publication: Journal of Water Resources Planning and Management
Volume 148, Issue 11
Abstract
Climate change impacts on irrigated agriculture reveal the necessity of improving water and energy use efficiency and integrating renewable energies in this sector. Pressurized networks are typical in the irrigation sector. In these networks, nodes with excess pressure are frequent and the installation of pressure-reducing devices is required for their proper operation. As these devices imply an energy dissipation previously used, this work focuses on determination of the optimal number and location of pumps as turbines (PATs) in irrigation networks to maximize the energy recovery, provided that the feasibility of installation of each PAT separately is guaranteed considering the large flow fluctuations typical in these networks. The proposed methodology considered theoretical PAT curves and was evaluated in two irrigation networks located in Southern Spain. The results showed three and four potential sites for PAT installation in each network, with total annual energy recovery estimations of 43.1 and 91.8 MWh, a payback period lower than 10 years in most of them, and potential annual emissions savings up to 13.4 and . The developed model could be an interesting tool to offer irrigation district managers or technicians a baseline hydropower potential scenario in irrigation networks.
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Data Availability Statement
All models generated or used during the study are available from the corresponding author on request.
Acknowledgments
This research is funded by the Spanish Ministry of Economy and Competitiveness (AGL2017-82927-C3-1-R) and the Spanish Ministry of Science and Innovation (PID2020-115998RB-C21). We acknowledge financial support from the Spanish Ministry of Science and Innovation, Spanish State Research Agency, through the Severo Ochoa and María de Maeztu Program for Centers and Units of Excellence in R&D (Ref. CEX2019-000968-M).
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Journal of Water Resources Planning and Management
Volume 148 • Issue 11 • November 2022
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© 2022 American Society of Civil Engineers.
History
Received: Oct 26, 2021
Accepted: Jun 10, 2022
Published online: Aug 26, 2022
Published in print: Nov 1, 2022
Discussion open until: Jan 26, 2023
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