Energy savings and emissions reductions for rewinding and replacement of industrial motor

Electric motors consume 30-80 of total industrial energy around the world. This study estimates the economic viability of replacing rewound and standard motors with high efficiency motors (HEMs) in the industrial sector. The efficiency of a motor is degraded when it is rewound and it is better to re...

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Main Authors: Hasanuzzaman, M., Rahim, N.A., Saidur, Rahman, Kazi, S.N.
Format: Article
Published: Energy 2011
Subjects:
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author Hasanuzzaman, M.
Rahim, N.A.
Saidur, Rahman
Kazi, S.N.
author_facet Hasanuzzaman, M.
Rahim, N.A.
Saidur, Rahman
Kazi, S.N.
author_sort Hasanuzzaman, M.
collection UM
description Electric motors consume 30-80 of total industrial energy around the world. This study estimates the economic viability of replacing rewound and standard motors with high efficiency motors (HEMs) in the industrial sector. The efficiency of a motor is degraded when it is rewound and it is better to rewind a larger motor compared with a smaller motor. It was found that a HEM can save on average 5.5 of energy compared with a standard motor. In addition, the payback period was found to be reasonable when a motor is operated at a 50 load. HEMs will also save a sizeable amount of energy and reduce emissions. It was estimated that 67,868 MWh/year energy and US 4,343,531 per year could be saved by introducing HEMs. By contrast, 44,582 tons of CO2, 333 tons of SO2 and 122 tons of NOx emissions could be reduced through the aforementioned energy savings. This study found that rewound motors of a larger size and HEMs are economically viable.
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spelling um.eprints-67112019-10-25T06:18:36Z http://eprints.um.edu.my/6711/ Energy savings and emissions reductions for rewinding and replacement of industrial motor Hasanuzzaman, M. Rahim, N.A. Saidur, Rahman Kazi, S.N. TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery Electric motors consume 30-80 of total industrial energy around the world. This study estimates the economic viability of replacing rewound and standard motors with high efficiency motors (HEMs) in the industrial sector. The efficiency of a motor is degraded when it is rewound and it is better to rewind a larger motor compared with a smaller motor. It was found that a HEM can save on average 5.5 of energy compared with a standard motor. In addition, the payback period was found to be reasonable when a motor is operated at a 50 load. HEMs will also save a sizeable amount of energy and reduce emissions. It was estimated that 67,868 MWh/year energy and US 4,343,531 per year could be saved by introducing HEMs. By contrast, 44,582 tons of CO2, 333 tons of SO2 and 122 tons of NOx emissions could be reduced through the aforementioned energy savings. This study found that rewound motors of a larger size and HEMs are economically viable. Energy 2011 Article PeerReviewed Hasanuzzaman, M. and Rahim, N.A. and Saidur, Rahman and Kazi, S.N. (2011) Energy savings and emissions reductions for rewinding and replacement of industrial motor. Energy, 36 (1). pp. 233-240. ISSN 0360-5442, DOI https://doi.org/10.1016/j.energy.2010.10.046 <https://doi.org/10.1016/j.energy.2010.10.046>. http://ac.els-cdn.com/S0360544210006092/1-s2.0-S0360544210006092-main.pdf?_tid=f8eb7e1e-4023-11e2-b49d-00000aacb35e&acdnat=1354853581_a7e8cd4882545391539024e18dd6e6d6 10.1016/j.energy.2010.10.046
spellingShingle TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Hasanuzzaman, M.
Rahim, N.A.
Saidur, Rahman
Kazi, S.N.
Energy savings and emissions reductions for rewinding and replacement of industrial motor
title Energy savings and emissions reductions for rewinding and replacement of industrial motor
title_full Energy savings and emissions reductions for rewinding and replacement of industrial motor
title_fullStr Energy savings and emissions reductions for rewinding and replacement of industrial motor
title_full_unstemmed Energy savings and emissions reductions for rewinding and replacement of industrial motor
title_short Energy savings and emissions reductions for rewinding and replacement of industrial motor
title_sort energy savings and emissions reductions for rewinding and replacement of industrial motor
topic TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
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AT rahimna energysavingsandemissionsreductionsforrewindingandreplacementofindustrialmotor
AT saidurrahman energysavingsandemissionsreductionsforrewindingandreplacementofindustrialmotor
AT kazisn energysavingsandemissionsreductionsforrewindingandreplacementofindustrialmotor