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A numerical study of the heat transfer and fluid flow of micro-channeled water block for computer CPU cooling

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Abstract

Thermal and fluid flow characteristics of a micro-channeled water-block with pass variations in 8 samples were studied. The results of a numerical analysis using ANSYS CFX-11 were compared with the results of experiments. The numerical analysis and experiments were conducted under an input power of 150 W, inlet temperature of 35°C and mass flow rates of 0.7 ∼ 2.0 kg/min. The numerical results showed reasonably good agreement, within 3–5%, with the experimental results. Also, the numerical results showed that 2-pass samples give better performance than 1-pass samples in terms of heat transfer. However, the pressure drop for 2-pass samples was relatively higher.

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Authors and Affiliations

  1. Energy System R&D Group, Korea Institute of Industrial Technology, 35-3 Hongcheon-ri, Ipjang-myeon, Cheonan-si, Chungcheongnam-do, 330-825, Korea

    Jin Tae Choi, Oh Kyung Kwon & Dong An Cha

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  1. Jin Tae Choi
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  2. Oh Kyung Kwon
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  3. Dong An Cha
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Correspondence to Oh Kyung Kwon.

Additional information

This paper was recommended for publication in revised form by Associate Editor Oh-Kyung Kwon

Jin Tae Choi is a Researcher at the Power Engineering Research Institute in Kepco Engineering & Construction Company. He received a M.S. from the Korea University, Korea, in 2011. His research interests include electronic cooling system and heat exchangers.

Oh Kyung Kwon is a Principal Researcher at the Energy System R&D Group in Korea Institute of Industrial Technology. He received a Ph.D degree from the Pukyong National University, Korea, in 2000. His research interests include electronic cooling system, heat pump systems and heat exchangers.

Dong An Cha is a Researcher at the Energy System R&D Group in Korea Institute of Industrial Technology. He received a M.S. from the Pukyong National University, Korea, in 2002. His research interests include semiconductor chiller, heat pump systems and heat exchangers.

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Choi, J.T., Kwon, O.K. & Cha, D.A. A numerical study of the heat transfer and fluid flow of micro-channeled water block for computer CPU cooling. J Mech Sci Technol 25, 2657–2663 (2011). https://doi.org/10.1007/s12206-011-0616-4

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  • DOI: https://doi.org/10.1007/s12206-011-0616-4

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