Numerical Simulation for Flow of Rolling Piston Type of Rotary Compressor

Li-Chieh Hsu, Guo-Wei Wong, Po-Jui Lu, Fu-Shun Hsu and Ying-Chien Chen
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Li-Chieh Hsu: Department of Mechanical Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan
Guo-Wei Wong: Department of Mechanical Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan
Po-Jui Lu: Department of Mechanical Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan
Fu-Shun Hsu: New Widetech Industries Co., Ltd.; Section B, 34FL. No. 16-1, Xinzhan Rd., Banqiao District, New Taipei City 22041, Taiwan
Ying-Chien Chen: New Widetech Industries Co., Ltd.; Section B, 34FL. No. 16-1, Xinzhan Rd., Banqiao District, New Taipei City 22041, Taiwan

Energies, 2020, vol. 13, issue 10, 1-22

Abstract: In this numerical study, the temperature, pressure and flow structure inside the rotary compressor are obtained to analyze the work consumption and efficiency. The geometry of the compressor such as volume, inlet angle, and mass of reed valve are varied to look for optimal performance and design margin as the suggestions for manufacturing. The work done on refrigerant increases proportionally with the volume of the compressor. However, there is an optimal volume for efficiency. The design margin for inlet angle is determined. The best efficiency exists in a specific inlet angle. Larger mass of reed valve leads to the increase of input power due to the additional resistance from greater inertia, which causes a decrease of efficiency. The flow visualization by simulation diagnoses the potential factors, which may cause noise problem.

Keywords: rotary compressor; rolling piston; numerical; inlet; compression volume; reed valve (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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