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https://hdl.handle.net/10316/107547
Title: | Technical and Economic Evaluation of Efficiency Improvement after Rewinding in Low-Power Induction Motors: A Brazilian Case | Authors: | Aguiar, Victor Pontes, Ricardo Ferreira, Fernando J. T. E. |
Keywords: | industrial motors; retrofitting; redesign; stator winding; equivalent circuit; minimum efficiency performance standard (MEPS); cost-effectiveness methods; efficiency measurements; life cycle costs;; net savings | Issue Date: | 2018 | Publisher: | MDPI | Project: | CNPQ grant number 459091/2014-0 | Serial title, monograph or event: | Energies | Volume: | 11 | Issue: | 7 | Abstract: | Nowadays the economic analysis of an induction motor’s life cycle is the clearest way to measure the viability of actions to promote energy-efficient technologies to the end user. The cost effectiveness in motors replacement by energy-efficient motors is a well-known practice that leads to energy savings, however this paper presents the cost-effectiveness of low-power induction motors which have their efficiency improved after rewinding. This process improves the investment viability and brings the greatest financial and energetic savings. In this paper, low-power induction motors are rewound and their efficiencies are measured by tests A and B from IEEE standard 112/2017. The rewound motors have better cost-effectiveness than replacement by IE3/Premium and even IE4/Super-Premium units. The rewound motors increase between 3 and 4 percentage points in relation to former efficiency and the payback is less than 2 years, regardless of the efficiency measurement method. | URI: | https://hdl.handle.net/10316/107547 | ISSN: | 1996-1073 | DOI: | 10.3390/en11071701 | Rights: | openAccess |
Appears in Collections: | I&D ISR - Artigos em Revistas Internacionais FCTUC Eng.Electrotécnica - Artigos em Revistas Internacionais |
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