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Theoretical modeling and experimental verification of the motor design for a 500?g micro moving-coil linear compressor operating at 90–140?Hz.

Author(s) : DANG H., LI J., TAN J., et al.

Type of article: Article, IJR article

Summary

This paper presents the theoretical modeling and experimental verification of the motor design for a micro moving-coil dual-opposed linear compressor operating at 90–140 Hz. A three-dimensional model is built to study the characteristics of its magnetic field and then the magnetic circuit configuration is optimized theoretically. The non-uniform distribution of magnetic field will have an important effect on the direction of the motor force, thereby decreasing the efficiency. Based on theoretical analyses, a 500 g micro linear compressor is built and then coupled with a given micro pulse tube cold finger to test the performance. Experimental results show that the developed compressor achieves an average motor efficiency of 78.6%, and a cooling power of 1.2 W at 77 K is acquired with an electric input power of 60 W. The experimental results of both linear motor and the cooler system are compared with the theoretical ones and good agreements can be observed.

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Pages: 502-512

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Details

  • Original title: Theoretical modeling and experimental verification of the motor design for a 500?g micro moving-coil linear compressor operating at 90–140?Hz.
  • Record ID : 30026635
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 104
  • Publication date: 2019/08
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.05.025

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