Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Fluid Flow and Convective Heat Transfer Characteristics of Al2O3 Nanofluids

알루미나 나노유체의 유동 및 대류 열전달 특성

  • 황교식 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 이지환 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 이병호 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 장석필 (한국항공대학교 항공우주 및 기계공학부)
  • Published : 2007.01.01
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Abstract

In this paper, convective heat transfer and flow characteristics of $Al_2O_3$ nanoparticles suspended in water flowing through uniformly heated tubes are experimentally investigated under laminar flow regime. The heat transfer coefficient and the pressure drop of nanoparticles suspended in water are experimentally presented according to the pumping power. In addition, the heat transfer coefficient and the pressure drop of $Al_2O_3$ nanoparticles suspended in water are compared with those of pure water under the fixed pumping power. It is shown that the heat transfer coefficient of $Al_2O_3$ nanofluids with 0.1% volume fraction is enhanced by about 12% although the increment of the pressure drop of those is 4% compared with those of pure water.

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References

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