Analytical Sensitivity Analysis and Optimization for Cost-Efficient Operation of Water Supply Systems
Publication: Journal of Water Resources Planning and Management
Volume 150, Issue 4
Abstract
Water supply systems (WSS) transport water from the source to the population, requiring a significant amount of energy, particularly for hydraulic pumps. To improve the efficiency of WSS, the use of hydraulic models and optimization algorithms can provide valuable insights for their operation and management. However, the efficient combination of these tools requires an effective and reliable sensitivity analysis. This work presents a novel and precise calculation of the sensitivities for the pump scheduling problem using a real continuous formulation and the extended period simulation (EPS) hydraulic analysis, as used in the generality of hydraulic simulators, such as EPANET. The work was validated through comparison with the finite-difference method (FDM) in two numerical case studies: a simple pump-tank network and the AnyTown Modified benchmark. For the last case study, an optimization process was carried out comparing the results obtained by the FDM and the analytical approach previously validated. The analytical sensitivities were found to be more accurate and require lower computational resources than the alternative approaches.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors gratefully acknowledge the financial support of the Portuguese Foundation for Science and Technology (FCT) and UE/FEDER through the programs CENTRO 2020 and COMPETE 2020 and UID/EMS/00481/2013-FCT under CENTRO-01-0145-FEDER-022083 and Programa Operacional Regional do Centro, through the project I-RETIS-WATER (CENTRO-01-0247-FEDER-069857).
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Information & Authors
Information
Published In
Journal of Water Resources Planning and Management
Volume 150 • Issue 4 • April 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Jun 13, 2023
Accepted: Oct 26, 2023
Published online: Jan 25, 2024
Published in print: Apr 1, 2024
Discussion open until: Jun 25, 2024
ASCE Technical Topics:
- Analysis (by type)
- Case studies
- Comparative studies
- Engineering fundamentals
- Equipment and machinery
- Hydraulic engineering
- Hydraulic models
- Hydraulics
- Methodology (by type)
- Models (by type)
- Pumps
- Research methods (by type)
- Sensitivity analysis
- Water and water resources
- Water management
- Water supply
- Water supply systems
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