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

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 fi...

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Bibliographic Details
Published in:Energies (Basel) 2016-03, Vol.9 (3), p.158-158
Main Authors: Ahn, Hyun-Jin, Kim, Kang-Won, Choi, Joon-Ho, Kim, Eui-Sun, Lim, Young-Cheol
Format: Article
Language:English
Subjects:
Aluminum
Casting
centrifugal casting
compressor
Compressors
Copper
Density
Design techniques
fill factor
Finite element method
Induction motors
Magnetic flux
Mathematical models
pressure die-casting
Refrigerators
rotor
Rotors
single-phase induction motor
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Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en9030158