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Publisher DOI: 10.3390/w10091255
Title: Energy efficient operation of variable speed submersible pumps : simulation of a ground water well field
Language: English
Authors: Sperlich, Alexander 
Pfeiffer, Dino 
Burgschweiger, Jens 
Campbell, Enrique 
Beck, Marcus 
Gnirß, Regina 
Ernst, Mathias 
Keywords: EPANET;ground water;well field;genetic algorithm;submersible pumps;variable speed;permanent magnet synchronous motors
Issue Date: 15-Sep-2018
Publisher: Multidisciplinary Digital Publishing Institute
Source: Water 10 (9): 1255 (2018)
Journal or Series Name: Water 
Abstract (english): Due to their lower energy consumption, permanent magnet synchronous motor (PMSM) submersible pumps have been introduced in ground water well field operation. Besides direct savings of energy, the introduction of PMSM pumps together with the required variable frequency converters offers new operational scenarios to meet the seasonally varying water demand. In this work, potential energy savings of variable speed submersible pumps were investigated. A ground water well field consisting of 13 wells and their transport pipes was modeled in the hydraulic modeling software EPANET 2.0. Using MS visual basic for applications, EPANET was coupled with MS Excel and a genetic algorithm to identify the most energy efficient combination of pump speeds. For the simulated well field, the total specific energy demand required for pumping was significantly lower in partial load operation as compared to nominal pump speed operation. For low and moderate flow scenarios, energy savings in the range of 20% compared to nominal speed operation can be achieved. These findings were confirmed by a monitoring campaign in the well field. Combining hydraulic simulation and optimization using genetic algorithms, the best efficiency scenario for operation of ground water well fields can be found.
DOI: 10.15480/882.1749
ISSN: 2073-4441
Other Identifiers: doi: 10.3390/w10091255
Institute: Wasserressourcen und Wasserversorgung B-11 
Type: (wissenschaftlicher) Artikel
Funded by: German Federal Ministry for Economic Affairs and Energy (BMWi, grant number 03ET1190B) and the German Technical and Scientific Association for Gas and Water (DVGW)
Project: ENERWAG: Energieeffizienz in der Wassergewinnung - Praxisuntersuchungen und Empfehlungen 
License: In Copyright In Copyright
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