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Study on the performance of linear compressor with suction system shapes using a transient CFD model

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Abstract

Many studies have been conducted to improve linear compressor performance, but studies using transient CFD (computational fluid dynamics) models are still insufficient. Therefore, in this study, changes in compressor performance depending on the shape of the suction system was investigated with a transient axisymmetric CFD model which utilizes an empirical temperature distribution. In addition, the compressor EER (energy efficiency ratio) was experimentally measured and then compared with the EER obtained by numerical analysis. The results of the numerical analysis showed that cooling capacity increased when the suction resistance was decreased by holes in the area where the refrigerant flow was stagnant. In addition, even when the suction resistance increased, the EER increased since the compression work decreased further. Finally, the EER change predicted by the CFD model was quantitatively different from the experimental result, but qualitatively agreed well.

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Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2016R1D1A1B02009582). In addition, this work was supported by the research grant of the Kongju National University in 2021

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Authors and Affiliations

  1. Sustainable Eco-friendly Energy Center, Kongju National University, Cheonan, Chungnam, 330-717, Korea

    Il Sun Hwang

  2. Dept. of Mechanical and Automotive Engineering, Kongju National University, Cheonan, Chungnam, 330-717, Korea

    Young Lim Lee

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  1. Il Sun Hwang
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  2. Young Lim Lee
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Correspondence to Young Lim Lee.

Additional information

Il Sun Hwang graduated from Kongju National University with a major in Mechanical Engineering. He got a Ph.D. at Kongju National University in 2018. Now he is a postdoctoral fellow at Sustainable Eco-friendly Energy Center of Kongju National University.

Young Lim Lee graduated from Hanyang University with a major in Mechanical Engineering. He got a Ph.D. at the University of Texas at Austin in 1995. He is currently interested in the research topics of linear compressors as well as brake filter, vacuum glazing and heat pumps.

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Hwang, I.S., Lee, Y.L. Study on the performance of linear compressor with suction system shapes using a transient CFD model. J Mech Sci Technol 36, 1809–1816 (2022). https://doi.org/10.1007/s12206-022-0317-1

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  • DOI: https://doi.org/10.1007/s12206-022-0317-1

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