This study presents energy saving in general-purpose
pumps widely used in industrial applications. Such pumps are
normally driven by a constant-speed electrical motor which in most
applications must support varying load conditions. This is equivalent
to saying the loading conditions mismatch the designed optimal
energy consumption requirements of the intended application thus
resulting in substantial energy losses. In the held experiments it was
indicated that combination of mechanical and electrical speed drives
can contribute to lower energy consumption in the pump without
negatively distorting the required performance indices of a typical
centrifugal pump at substantially lower energy consumption. The
registered energy savings were recorded to be within the 15-40%
margin. It was also indicated that although VSDs are installed at a
cost, the financial burden is balanced against the earnings resulting
from the associated energy savings.
[1] S. Onut and S. Soner, "Analysis of energy use and efficiency in Turkish
manufacturing sector SMEs," Energy Conversion and Management,
2007, vol. 48, pp. 384-394.
[2] S. Nadel, R.N. Elliott, M. Shepard, S. Greenberg, G. Katz, and A.T. de
Almeida, "Energy-Efficient Motor Systems," A Handbook on
Technology, Program, and Policy Opportunities, Second Edition,
Washington D.C, American Council for an Energy-Efficient Economy,
2002
[3] D.Y.L.Chan, K. H. Yang, C. H. Hsu, M. H. Chien and G. B. Hong,
"Current situation of energy conservation in high energy-consuming
industries in Taiwan," Energy Policy, 2007, vol. 35, pp. 202-209.
[4] Anon, "Variable Speed Driven Pumps, Best Practice Guide,"
Automation instrumentation& control laboratory technology, 2004,
www.gambica.org.uk.
[5] T. M. I. Mahlia, "Emissions from electricity generation in Malaysia,"
Renewable Energy, 2002, vol. 27, pp. 293-300.
[6] B. C. Mecrow and A. G. Jack, "Efficiency trends in electric machines
and drives," Energy Policy, 2008, vol. 36, pp. 4336-4341.
[7] EC, Statistics of electricity supply in Malaysia, Energy Commission
Malaysia, 2007.
[8] F. Al-Mansour, S. Merse and M. Tomsic, "Comparison of energy
efficiency strategies in the industrial sector of Slovenia," Energy, 2003,
vol. 28, pp. 421-440.
[9] N. Ghaddar and T. Mezher, "Modeling of current and future
energyintensity and greenhouse gas emissions ofthe Lebanese industrial
sector: assessmentof mitigation options," Applied Energy, 1999, vol. 63,
pp. 53-74.
[10] A. Al-Ghandoor, I. Al-Hinti,J. O. Jaber and S. A. Sawalha, "Electricity
consumption and associated GHG emissions of the Jordanian industrial
sector: Empirical analysis and future projection," Energy Policy, 2008,
vol. 36, pp. 258-267.
[11] R. Saidur, N. A. Rahim, H. H. Masjuki, S. Mekhilef, H. W. Ping and M.
F. Jamaluddin, "End-use energy analysis in the Malaysian industrial
sector," Energy, 2009, vol. 34, pp. 153-158.
[12] B. C. Mecrow and A. G. Jack, "Efficiency trends in Electric Mechines
and Drives," Energy Policy, 2008, vol. 36, pp. 4336-4341.
[13] M. Massarrat, "Iran-s energy policy: Current dilemmas and perspective
for a sustainable energy policy," International Journal of Environmental
Science & Technology, 2004, vol. 1, No. 3, pp. 233-245.
[14] D. Kaya, E. A. Yagmur, K. S. Yigit,F. C. Kilic, A. S. Eren and C. Celik,
"Energy efficiency in pumps," Energy Conversion and Management,
2008, vol. 49, pp. 1662-1673.
[15] Nakahoma, "Power Factor Correction at the Residential Level - Pilot
Project," Report to the LDCTomorrow,
http://www.nakahoma.com/Res%20App%20Power%20Co.pdf.
[16] A. G. p. Garcia, S. A. Szklo, R. Schaeffer and M. A. McNeil, "Energyefficiency
standards for electric motors in Brazilian industry," Energy
Policy, 2007, vol. 35, pp. 3424-3439.
[17] C.Beggs, "Energy Management and Conservation," Elsevier Ltd., 2002.
[18] L. Jayamaha, "Energy efficient building systems," McGraw Hill
Publisher, 2006.
[19] M. Teitel, A. L. Y. Zhao, M. Barak, E. Bar-lev and D. Shmuel, "Energy
saving in agricultural buildings through fan motor control by variable
frequency drives," Energy and Buildings, 2008, vol. 40, pp. 953-960.
[20] F. Bouzidi, "Energy savings on single-phase induction motors under
light load conditions," MS thesis, University of Nevada Las Vegas,
USA, 2008.
[21] B. C. Mecrow and A. G. Jack, "Efficiency trends in electric machines
and drives," Energy Policy, 2008, vol. 36, pp. 4336-434.
[22] J. Tolvanen, "Saving energy with variable speed drives," World Pumps,
2008, pp. 32-33.
[23] Anon, "Ways to Save on Motor Energy Costs," 2008,
https://www.aps.com/main/services/business/WaysToSave/BusWaystoS
ave_16.
[24] J. Tolvanen, "Saving energy with variable speed drives," World Pumps,
2008, pp. 32-33.
[25] Ozdemir, "Engin. Energy conservation opportunities with a variable
speed controller in a boiler house," Applied Thermal Engineering, 2004,
vol. 24, pp. 981-993.
[26] Bureau of Energy Efficiency. Waste heat recovery; 2009,
http://www.em-ea.org/Guide%20Books/book-
2/2.8%20Waste%20Heat%20.
[1] S. Onut and S. Soner, "Analysis of energy use and efficiency in Turkish
manufacturing sector SMEs," Energy Conversion and Management,
2007, vol. 48, pp. 384-394.
[2] S. Nadel, R.N. Elliott, M. Shepard, S. Greenberg, G. Katz, and A.T. de
Almeida, "Energy-Efficient Motor Systems," A Handbook on
Technology, Program, and Policy Opportunities, Second Edition,
Washington D.C, American Council for an Energy-Efficient Economy,
2002
[3] D.Y.L.Chan, K. H. Yang, C. H. Hsu, M. H. Chien and G. B. Hong,
"Current situation of energy conservation in high energy-consuming
industries in Taiwan," Energy Policy, 2007, vol. 35, pp. 202-209.
[4] Anon, "Variable Speed Driven Pumps, Best Practice Guide,"
Automation instrumentation& control laboratory technology, 2004,
www.gambica.org.uk.
[5] T. M. I. Mahlia, "Emissions from electricity generation in Malaysia,"
Renewable Energy, 2002, vol. 27, pp. 293-300.
[6] B. C. Mecrow and A. G. Jack, "Efficiency trends in electric machines
and drives," Energy Policy, 2008, vol. 36, pp. 4336-4341.
[7] EC, Statistics of electricity supply in Malaysia, Energy Commission
Malaysia, 2007.
[8] F. Al-Mansour, S. Merse and M. Tomsic, "Comparison of energy
efficiency strategies in the industrial sector of Slovenia," Energy, 2003,
vol. 28, pp. 421-440.
[9] N. Ghaddar and T. Mezher, "Modeling of current and future
energyintensity and greenhouse gas emissions ofthe Lebanese industrial
sector: assessmentof mitigation options," Applied Energy, 1999, vol. 63,
pp. 53-74.
[10] A. Al-Ghandoor, I. Al-Hinti,J. O. Jaber and S. A. Sawalha, "Electricity
consumption and associated GHG emissions of the Jordanian industrial
sector: Empirical analysis and future projection," Energy Policy, 2008,
vol. 36, pp. 258-267.
[11] R. Saidur, N. A. Rahim, H. H. Masjuki, S. Mekhilef, H. W. Ping and M.
F. Jamaluddin, "End-use energy analysis in the Malaysian industrial
sector," Energy, 2009, vol. 34, pp. 153-158.
[12] B. C. Mecrow and A. G. Jack, "Efficiency trends in Electric Mechines
and Drives," Energy Policy, 2008, vol. 36, pp. 4336-4341.
[13] M. Massarrat, "Iran-s energy policy: Current dilemmas and perspective
for a sustainable energy policy," International Journal of Environmental
Science & Technology, 2004, vol. 1, No. 3, pp. 233-245.
[14] D. Kaya, E. A. Yagmur, K. S. Yigit,F. C. Kilic, A. S. Eren and C. Celik,
"Energy efficiency in pumps," Energy Conversion and Management,
2008, vol. 49, pp. 1662-1673.
[15] Nakahoma, "Power Factor Correction at the Residential Level - Pilot
Project," Report to the LDCTomorrow,
http://www.nakahoma.com/Res%20App%20Power%20Co.pdf.
[16] A. G. p. Garcia, S. A. Szklo, R. Schaeffer and M. A. McNeil, "Energyefficiency
standards for electric motors in Brazilian industry," Energy
Policy, 2007, vol. 35, pp. 3424-3439.
[17] C.Beggs, "Energy Management and Conservation," Elsevier Ltd., 2002.
[18] L. Jayamaha, "Energy efficient building systems," McGraw Hill
Publisher, 2006.
[19] M. Teitel, A. L. Y. Zhao, M. Barak, E. Bar-lev and D. Shmuel, "Energy
saving in agricultural buildings through fan motor control by variable
frequency drives," Energy and Buildings, 2008, vol. 40, pp. 953-960.
[20] F. Bouzidi, "Energy savings on single-phase induction motors under
light load conditions," MS thesis, University of Nevada Las Vegas,
USA, 2008.
[21] B. C. Mecrow and A. G. Jack, "Efficiency trends in electric machines
and drives," Energy Policy, 2008, vol. 36, pp. 4336-434.
[22] J. Tolvanen, "Saving energy with variable speed drives," World Pumps,
2008, pp. 32-33.
[23] Anon, "Ways to Save on Motor Energy Costs," 2008,
https://www.aps.com/main/services/business/WaysToSave/BusWaystoS
ave_16.
[24] J. Tolvanen, "Saving energy with variable speed drives," World Pumps,
2008, pp. 32-33.
[25] Ozdemir, "Engin. Energy conservation opportunities with a variable
speed controller in a boiler house," Applied Thermal Engineering, 2004,
vol. 24, pp. 981-993.
[26] Bureau of Energy Efficiency. Waste heat recovery; 2009,
http://www.em-ea.org/Guide%20Books/book-
2/2.8%20Waste%20Heat%20.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:64404", author = "N. Dizadji and P. Entezar and A. Shabani", title = "Energy Savings in Pumps", abstract = "This study presents energy saving in general-purpose
pumps widely used in industrial applications. Such pumps are
normally driven by a constant-speed electrical motor which in most
applications must support varying load conditions. This is equivalent
to saying the loading conditions mismatch the designed optimal
energy consumption requirements of the intended application thus
resulting in substantial energy losses. In the held experiments it was
indicated that combination of mechanical and electrical speed drives
can contribute to lower energy consumption in the pump without
negatively distorting the required performance indices of a typical
centrifugal pump at substantially lower energy consumption. The
registered energy savings were recorded to be within the 15-40%
margin. It was also indicated that although VSDs are installed at a
cost, the financial burden is balanced against the earnings resulting
from the associated energy savings.", keywords = "Industrial motors, Pumps, Energy consumption,
Energy savings, Variable speed drive.", volume = "6", number = "1", pages = "366-4", }
