Leakage Control and Energy Recovery Using Variable Speed Pumps as Turbines

AbstractOne of the primary concerns in water supply systems is pressure control. High pressure increases both leakage and the risk of pipes bursting, while low pressure can reduce the water supplied to consumers and allow the intrusion of pathogens. Therefore, the operation of the equipment must be...

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Bibliographic Details
Published in:Journal of water resources planning and management 2018-01, Vol.144 (1)
Main Authors: Lima, Gustavo Meirelles, Luvizotto, Edevar, Brentan, Bruno Melo, Ramos, Helena M
Format: Article
Language:English
Subjects:
Control
Energy
Energy consumption
Energy recovery
High pressure
Intrusion
Leakage
Low pressure
Pathogens
Pressure
Pumps
Recovery
Technical Papers
Turbine engines
Turbines
Water conveyance
Water resources management
Water supply
Water supply systems
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Summary:AbstractOne of the primary concerns in water supply systems is pressure control. High pressure increases both leakage and the risk of pipes bursting, while low pressure can reduce the water supplied to consumers and allow the intrusion of pathogens. Therefore, the operation of the equipment must be optimized to avoid such problems. In high pressure zones, pressure reducing valves (PRVs) are commonly used for pressure control. However, the energy dissipated from head loss could be recovered to produce electrical energy. The use of pumps as turbines (PAT) in this case is an alternative to improve the system efficiency. However, owing to the dynamic operation, PAT performance drops significantly during some periods of the day. The use of variable speeds can solve this problem, but the PAT selection to optimize the operation remains an issue. Therefore, this paper presents a method to simultaneously select PATs and schedule their operation using variable speed to improve energy recovery and reduce leakage. Two networks are studied and the performance in leakage control is compared with the PRV operation.
ISSN:0733-9496
1943-5452
DOI:10.1061/(ASCE)WR.1943-5452.0000852