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Effect of the windshield perforation patterns on the cooling performance in centrifugal separators

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Abstract

The cooling performance of a centrifuge was enhanced using a perforated windshield. The windshield spatially separates the rotor and the chamber, reducing turbulence and air resistance. On the other hand, during centrifuge rotation, heat is generated by friction between the internal structure and air. Optimizing the windshield shape and facilitating efficient heat exchange with the chamber wall are essential for cooling the sample container inside the windshield. This study examined the cooling performance of the perforated windshield through analysis and experiment. The effects of the presence, location, and diameter of the perforations were compared using computational fluid dynamics (CFD) simulations and considering temperature and flow characteristics. These results suggest that the perforated windshield enhances the cooling performance of the centrifuge.

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Abbreviations

P :

Density of fluid

E :

Energy per unit mass

\(\overrightarrow{U}\) :

Velocity of fluid

p :

Pressure

k eff :

Effective conductivity

T :

Temperature

h j :

Chemical species type

\(\overrightarrow{J_{\!\!\!\!=j}}\) :

Diffuse flux

τ eff :

Turbulent stress tensor

S h :

Heat source term

C p :

Heat capacity of the fluid

ϵ eff :

Viscosity of the fluid

Ω :

Rotational angular velocity of each node

R :

The distance of each node from the axis of rotation, or radius

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Acknowledgments

This work was supported by INHA UNIVERSITY Research Grant.

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Inha University, Incheon, 22212, Korea

    Young Min Kim, Kwang-Hee Lee, Sang-Min Chung, Daeyup Lee & Chul-Hee Lee

  2. Hanil Scientific Inc., Gimpo, 10136, Korea

    Youngil Yoo

  3. Gyrozen Co., Ltd., Gimpo, 10136, Korea

    Chang Sung An

Authors
  1. Young Min Kim
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  2. Kwang-Hee Lee
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  3. Sang-Min Chung
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  4. Daeyup Lee
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  5. Youngil Yoo
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  6. Chang Sung An
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  7. Chul-Hee Lee
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Corresponding author

Correspondence to Chul-Hee Lee.

Additional information

Young-Min Kim is a master’s student in the Department of Mechanical Engineering, Inha University. He received his Bachelor of Science degree in 2019 in naval architecture and ocean engineering at Hongik University. His research interests include computational fluid dynamics and design optimization.

Chul-Hee Lee received his Doctor of Philosophy degree in 2006 in mechanical and industrial engineering at the University of Illinois at Urbana-Champaign. He was a chassis research engineer at Hyundai Motor Co. from 1996 to 2002 and a senior research and development engineer at Caterpillar, Inc. (USA), from 2006 to 2007. He is a Professor in the School of Mechanical Engineering, Inha University. His research interests are in the areas of virtual product development by design optimization and FE analysis.

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Kim, Y.M., Lee, KH., Chung, SM. et al. Effect of the windshield perforation patterns on the cooling performance in centrifugal separators. J Mech Sci Technol 38, 2475–2483 (2024). https://doi.org/10.1007/s12206-024-0426-0

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  • DOI: https://doi.org/10.1007/s12206-024-0426-0

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