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Analysis of electrical motors load factors and energy savings in an Indian cement industry

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  • Thirugnanasambandam, M.
  • Hasanuzzaman, M.
  • Saidur, R.
  • Ali, M.B.
  • Rajakarunakaran, S.
  • Devaraj, D.
  • Rahim, N.A.

Abstract

Electric motors consume in between 30% and 80% of the total industrial energy use for few selected countries around the world. It was identified that many motors are operated under loaded conditions. In some cases, motors are operated even at 3–16% of their full loads. These low loads can be optimized with the application of variable speed drives (VSD) to match the load requirements. Based on the estimation, it has been found that annually about 1,865,925MWh of energy can be saved for 60% speed reduction when VSDs are used. It was also found that about 2,122,675tons CO2emission could be avoided annually by using VSDs for Low Tension (LT) motors for 60% speed reduction. It was also estimated that annually about 4,600,386MWh of energy can be saved for High Tension (HT) motors for 60% speed reduction using VSDs. The average payback period (PBP) for implementing VSDs for LT and HT motors found to be very low (i.e. about 2 days). In this particular study it is observed that installing both LT and HT capacitors to improve power factor found to be not economically viable owing to low level of energy savings.

Suggested Citation

  • Thirugnanasambandam, M. & Hasanuzzaman, M. & Saidur, R. & Ali, M.B. & Rajakarunakaran, S. & Devaraj, D. & Rahim, N.A., 2011. "Analysis of electrical motors load factors and energy savings in an Indian cement industry," Energy, Elsevier, vol. 36(7), pages 4307-4314.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:7:p:4307-4314
    DOI: 10.1016/j.energy.2011.04.011
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    11. Saidur, R. & Hasanuzzaman, M. & Mahlia, T.M.I. & Rahim, N.A. & Mohammed, H.A., 2011. "Chillers energy consumption, energy savings and emission analysis in an institutional buildings," Energy, Elsevier, vol. 36(8), pages 5233-5238.
    12. El-Kharashi, Eyhab, 2014. "Detailed comparative study regarding different formulae of predicting the iron losses in a machine excited by non-sinusoidal supply," Energy, Elsevier, vol. 73(C), pages 513-522.
    13. DeBenedictis, A. & Haley, B. & Woo, C.K. & Cutter, E., 2013. "Operational energy-efficiency improvement of municipal water pumping in California," Energy, Elsevier, vol. 53(C), pages 237-243.
    14. Ahmed, Ferdous & Al Amin, Abul Quasem & Hasanuzzaman, M. & Saidur, R., 2013. "Alternative energy resources in Bangladesh and future prospect," Renewable and Sustainable Energy Reviews, Elsevier, vol. 25(C), pages 698-707.
    15. Al-Ghandoor, A., 2012. "Analysis of Jordan's industrial energy intensity and potential mitigations of energy and GHGs emissions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(7), pages 4479-4490.
    16. Bosu, Issa & Mahmoud, Hatem & Hassan, Hamdy, 2023. "Energy audit and management of an industrial site based on energy efficiency, economic, and environmental analysis," Applied Energy, Elsevier, vol. 333(C).
    17. Sánchez, Gustavo Crespo & Monteagudo Yanes, José Pedro & Pérez, Milagros Montesino & Cabrera Sánchez, Jorge Luis & Padrón, Arturo Padrón & Haeseldonckx, Dries, 2020. "Efficiency in electromechanical drive motors and energy performance indicators for implementing a management system in balanced animal feed manufacturing," Energy, Elsevier, vol. 194(C).
    18. Burgos Payán, Manuel & Roldan Fernandez, Juan Manuel & Maza Ortega, Jose Maria & Riquelme Santos, Jesus Manuel, 2019. "Techno-economic optimal power rating of induction motors," Applied Energy, Elsevier, vol. 240(C), pages 1031-1048.
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    20. Trianni, Andrea & Cagno, Enrico & Accordini, Davide, 2019. "Energy efficiency measures in electric motors systems: A novel classification highlighting specific implications in their adoption," Applied Energy, Elsevier, vol. 252(C), pages 1-1.
    21. Ali, Muhammad Khurram & Nasir, Alishba & Abbasi, Kainat Jamil & Sajid, Muhammad, 2024. "A comparative multidimensional evaluation of parameters and alternatives for transformation of sustainable cement production in Pakistan," Socio-Economic Planning Sciences, Elsevier, vol. 93(C).

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