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Water 2018, 10(5), 570; https://doi.org/10.3390/w10050570

Groundwater Abstraction through Siphon Wells—Hydraulic Design and Energy Savings

Faculty of Civil Engineering & Architecture, Dresden University of Applied Sciences, 01069 Dresden, Germany
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Received: 16 March 2018 / Revised: 19 April 2018 / Accepted: 23 April 2018 / Published: 27 April 2018
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Abstract

Siphon pipes were used for groundwater abstraction from wells before the development of submersible pumps. Many of the existing and operational systems were built before the 1950s and require rehabilitation. Siphon wells are difficult to design and, therefore, are often equipped with submersible pumps when the system is rehabilitated or renewed. This study presents a novel calculation tool for siphon wells and investigates the energy savings of such system in comparison to an alternative equipment with submersible pumps. A theoretical energy savings of 38% was first estimated compared to individually-operated wells (IOW) for a fictional design example just based on the calculated water levels and abstraction rates. Real energy data from two riverbank filtration (RBF) sites, which operate both siphon and IOW, were investigated in the second part of the study. The analysis of measured data revealed energy savings of 36–69%, confirming the theoretical estimation. View Full-Text
Keywords: siphon wells; energy savings; energy efficiency; groundwater abstraction siphon wells; energy savings; energy efficiency; groundwater abstraction
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Bartak, R.; Grischek, T. Groundwater Abstraction through Siphon Wells—Hydraulic Design and Energy Savings. Water 2018, 10, 570.

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