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Energies 2016, 9(3), 158; doi:10.3390/en9030158

Rotor Design for an Efficient Single-Phase Induction Motor for Refrigerator Compressors

1
Department of Electrical Engineering, Chonnam National University, Gwangju 500-757, Korea
2
Department of Information and Communication, Shingyeong University, Hwaseong 445-852, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Hua Li
Received: 13 January 2016 / Revised: 25 February 2016 / Accepted: 26 February 2016 / Published: 3 March 2016
(This article belongs to the Special Issue Energy Saving Design for Manufacturing Process, Product, and System)
View Full-Text   |   Download PDF [16865 KB, uploaded 8 March 2016]   |  

Abstract

This article describes a rotor making technology for the production of high-efficiency single-phase induction motors (SPIMs) to be used in refrigerator compressors. Rotors can have different aluminum fill factors according to the fabrication method. In order to examine the association between the fill factor and the efficiency of the rotor, we analyzed the distribution of magnetic flux density using the finite element method (FEM). Next, we made prototype rotors by conventional casting methods and by the proposed casting method and compared their fill factors. In addition, SPIMs were made using the rotors, and their efficiencies were measured using a dynamometer. Moreover, the SPIMs were put to use in a compressor, for testing, and for each SPIM the refrigerating capacity of the compressor was measured with a calorimeter. Based on the results of the FEM analysis of the magnetic flux density and the experiments, the reliability and validity of the proposed method were proven. View Full-Text
Keywords: single-phase induction motor; finite element method; fill factor; pressure die-casting; centrifugal casting; compressor; rotor single-phase induction motor; finite element method; fill factor; pressure die-casting; centrifugal casting; compressor; rotor
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ahn, H.-J.; Kim, K.-W.; Choi, J.-H.; Kim, E.-S.; Lim, Y.-C. Rotor Design for an Efficient Single-Phase Induction Motor for Refrigerator Compressors. Energies 2016, 9, 158.

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