Journal cover Journal topic
Drinking Water Engineering and Science An interactive open-access journal
Journal topic

Journal metrics

Journal metrics

  • CiteScore value: 1.37 CiteScore
    1.37
  • SNIP value: 1.693 SNIP 1.693
  • SJR value: 0.307 SJR 0.307
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 15 Scimago H
    index 15
Volume 5, issue 1
Drink. Water Eng. Sci., 5, 15-21, 2012
https://doi.org/10.5194/dwes-5-15-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: CCWI 2011

Drink. Water Eng. Sci., 5, 15-21, 2012
https://doi.org/10.5194/dwes-5-15-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

  04 Jul 2012

04 Jul 2012

Assessing variable speed pump efficiency in water distribution systems

A. Marchi1, A. R. Simpson1, and N. Ertugrul2 A. Marchi et al.
  • 1School of Civil, Environmental and Mining Engineering, The University of Adelaide, SA 5005, Australia
  • 2School of Electrical and Electronic Engineering, The University of Adelaide, SA 5005, Australia

Abstract. Energy savings and greenhouse gas emission reductions are increasingly becoming important design targets in many industrial systems where fossil fuel based electrical energy is heavily utilised. In water distribution systems (WDSs) a significant portion of operational cost is related to pumping. Recent studies have considered variable speed pumps (VSPs) which aim to vary the operating point of the pump to match demand to pumping rate. Depending on the system characteristics, this approach can lead to considerable savings in operational costs. In particular, cost reductions can take advantage of the demand variability and can decrease energy consumption significantly. One of the issues in using variable speed pumping systems, however, is the total efficiency of the electric motor/pump arrangement under a given operating condition. This paper aims to provide a comprehensive discussion about the components of WDS that incorporate variable speed pumps (including electric motors, variable frequency drives and the pumps themselves) to provide an insight of ways of increasing the system efficiency and hence to reduce energy consumption. In addition, specific attention is given to selection of motor types, sizing, duty cycle of pump (ratio of on-time and time period), losses due to installation and motor faults. All these factors affect the efficiency of motor drive/pump system.

Publications Copernicus
Special issue
Download
Citation
Share