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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Characteristics of Carbon Nano Fluid Added PVP

PVP가 첨가된 탄소나노유체의 특성에 대한 연구

  • Seo, Hyang-Min (Department of Nuclear and Energy Engineering, Jeju National University) ;
  • Park, Sung-Seek (Department of Nuclear and Energy Engineering, Jeju National University) ;
  • Kim, Nam-Jin (Department of Nuclear and Energy Engineering, Jeju National University)
  • 서향민 (제주대학교 에너지공학과) ;
  • 박성식 (제주대학교 에너지공학과) ;
  • 김남진 (제주대학교 에너지공학과)
  • Received : 2009.11.11
  • Accepted : 2010.03.09
  • Published : 2010.05.10
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Abstract

In this study, the enhancement of the thermal conductivity of water in the presence of multi-walled carbon nanotubes, MWCNT, was investigated. Sodium Dodecyl Sulfate, SDS, and Polyvinylpyrrolidone, PVP, were employed as the dispersant. SDS or PVP was added in pure water. And then, MWCNT of 0.0005, 0.001, 0.002, 0.003, 0.004, 0.005, 0.01, and 0.02 vol% was dispersed respectively. The thermal conductivity and the viscosity were measured with a transient hot-wire instrument built for this study and the DV II+ Pro viscometer. The results showed that PVP had good thermal conductivity at 300 wt% and this was better than that of SDS 100 wt%, also, the viscosity of nano fluid added PVP rapidly increased until 0.02 vol%.

Keywords

References

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