Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Heat Transfer and Fluid Flow Characteristics of Radiator for Computer CPU Cooling

컴퓨터 CPU 냉각용 방열기의 열유동특성에 관한 연구

  • Cha, Dong-An (Energy System Technology Center, Korea Institute of Industrial Technology) ;
  • Kwon, Oh-Kyung (Energy System Technology Center, Korea Institute of Industrial Technology) ;
  • Yun, Jae-Ho (Energy System Technology Center, Korea Institute of Industrial Technology)
  • 차동안 (한국생산기술연구원 에너지설비센터) ;
  • 권오경 (한국생산기술연구원 에너지설비센터) ;
  • 윤재호 (한국생산기술연구원 에너지설비센터)
  • Received : 2010.06.28
  • Accepted : 2010.09.03
  • Published : 2011.01.10
Download PDF
⟨ Previous Next ⟩

Abstract

The performance of louver-finned flat-tube and fin and tube radiators for computer CPU liquid cooling was experimentally investigated. In this study, 7 samples of radiators with different shape and pass number (1, 2, 10) were tested in a wind tunnel. The experiments were conducted under the different air velocity ranged from 1 to 4 m/s. The water flow rate through a pass was 1.2 LPM. Inlet temperatures of air and water were $20^{\circ}C$ and $30^{\circ}C$ respectively. It was found that the best performance was observed in the louver-finned flat-tube sample considering pressure drop and heat transfer coefficient.

Keywords

Acknowledgement

Supported by : 산업기술연구회

References

  1. Hanamann, R. J., 1981, Microelectronic device thermal resistance: A format for standardardization, Heat Transfer in Electronic Equipment (ASME HTD-20), pp. 39-48.
  2. Kwon, O. K., Choi, M. J., Cha, D. A., and Yun, J H., 2008, A study on thermal performance of micro channel water block for computer CPU cooling, Transaction of the KSME, Vol. 32, No. 10, pp. 776-783.
  3. Schmidt, R., 2000, Low temperature electronic cooling, Electronics Cooling, Vol. 6, No.3, pp. 1-7.
  4. Cho, J P., Oh, W. K., Kim, N. H., and Youn, B., 2002, Air-side performance of louver-finned flat aluminum heat exchangers at a low velocity region, Transactions of the KSME, Vol. 26, No. 12, pp. 1681-1691.
  5. Kim, M. H. and Bullard, C. W., 2002, Air-side thermal hydraulic performance of multi-louvered fin aluminum heat exchangers, International Journal of Refrigeration, Vol. 25, pp. 390-400. https://doi.org/10.1016/S0140-7007(01)00025-1
  6. Tang, L. H., Zeng, M., Xie, G. N., and Wang, Q. W., 2009, Fin pattern effects on air side heat transfer and friction characteristics of fin-and-tube heat exchangers with large number of large-diameter tube rows, Heat Transfer Engineering, Vol. 30, pp. 171-180. https://doi.org/10.1080/01457630802304253
  7. Holman, J. P., 2000, Experimental Method for Engineer, 7th ed., McGraw-Hill, pp. 51-60.
  8. Mills, A. F., 1995, Basic Heat and Mass Transfer, Irwin, Chicago, pp. 233-243.
  9. Shah, R. K., 1985, Compact heat exchangers in handbook of heat transfer applications, Rohsenow, W. M., Hartnett, J. P., Ganic, E. N. eds., pp. 181-200.