Using Variable Speed Control on Pump Application

  • Dr.Sc. Aida Spahiu
  • Dr.Sc. Orion Zavalani
  • MSc. Altin Uka
Keywords: efficiency, pump, energy saving, efficient drive,


Pumps are one of the most common variable speed drive (VSD) system applications and special interest has focused on improving their energy efficiency by using variable speed control instead of throttling or other less efficient flow control methods. Pumps are the single largest user of electricity in industry in the European Union, consuming 160 TWh per annum of electricity and accounting for 79 million tonnes of carbon dioxide (CO2) emissions [1]. Centrifugal pumps are the most likely pump style to provide a favorable return based on energy savings when applied with a variable speed drive. To help illustrate this, are conducted benchmark testing to document various head and flow scenarios and their corresponding effect on energy savings. Paper shows the relationship of static and friction head in the energy efficiency equation and the effect of motor, pump and VSD efficiencies. The received results are good reference points for engineers and managers of water sector in Albania to select the best prospects for maximizing efficiency and energy savings.


ABB drives, Application Guide, No. 2, 2006, pg.5,8

World Bank Report No. 53331-Alb, Final Report, December 2009, pg.10, 12.

The National Strategy of Energy and Plan of Action, 2008, pg. 15.


ERRU, Annual Report 2010, January 2011, pg. 24, 30., Aug. 10, 2011.

DPUK, MPPTT,, Aug 24. 2011

De Almeida., at al. (2004), Energy Efficient Motor Driven Systems,. European Copper Institute, pg. 1-5. Brussels.

Official Journal of the European Union, 2009, pg.191/28

A. Spahiu, P. Marango, Globalization Impact On Technological Changes Towards

Electrical Drive Efficiency, IFAC-PapersOnLine, volume #8/part #1, 2010, ISSN: 1474-6670, DOI: 10.3182/20101027-3-XK-4018.00020.


Original Research Articles