한국태양에너지학회 논문집 (Journal of the Korean Solar Energy Society)

  • 제32권6호
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  • Pages.93-99
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  • 2012
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  • 1598-6411(pISSN)
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  • 2508-3562(eISSN)
한국태양에너지학회 (The Korean Solar Energy Society)
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그래핀이 포함된 나노유체의 열전도도 특성에 대한 연구

A Study on the Characteristics of the Thermal conductivity of Nanofluids Containing Graphene

  • Park, Sung-Seek (Dept. of Energy Engineering, Jeju National University) ;
  • Jeon, Youn-Han (Dept. of Protection and Safety, Sang Gi Young Seo College) ;
  • Kim, Nam-Jin (Dept. of Energy Engineering, Jeju National University)
  • 투고 : 2012.11.17
  • 심사 : 2012.12.21
  • 발행 : 2012.12.30
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초록

A nanofluid is a fluid containing suspended solid particles, with sizes on the order of nanometers. Especially graphene nanoparticle that has the high thermal conductivity properties among the various nanoparticles added to the nanofluid is receiving attention. Graphene is a flat monolayer of $sp^2$-bonded carbon atoms tightly packed into a honeycomb lattice. And are known to have very high thermal conductivity. Therefore, we compared thermal conductivity with viscosity of graphene M-5 nanofluids and graphene M-15 nanofluids. Graphene M-5 and graphene M-15 have different average particle diameters and the other properties are the same. Two kinds of graphene nanofluids was examined by measuring thermal conductivity via transient hot-wire method. And the viscosity was measured by using a rotational digital viscometer. As a result, graphene M-5 nanofluids exhibited better thermal conductivity and viscosity than graphene M-15 nanofluids.

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참고문헌

  1. Das. S.K., Choi. S.U.S., Yu. W., Nanofluids Scienceand Technology, JohnWiley & Sons,Inc., 2008.
  2. Novoselov. K.S. et al., Electric Field Effect in Atomically ThinCarbon Films, Science 306, 666, 2004. https://doi.org/10.1126/science.1102896
  3. Novoselov. K.S. et al., Two-dimensional gas of massless Dirac fermions in graphene, Nature 438,197, 2005. https://doi.org/10.1038/nature04233
  4. Geim. A.K. and Kim. P., Carbon wonderland, Scientific American, 298, pp.90-97, 2008.
  5. Yu. W., Xie. H., Wang. X., Wang. X., Significant thermal conductivity enhancement for nanofluids containing graphene nanosheets, Physics Letters, 375,1323-1328, 2011 https://doi.org/10.1016/j.physleta.2011.01.040
  6. Gupta. S.S. et al., Thermal conductivity enhancement of nanofluids containing graphene nanosheets, Journal of Applied Physics,110, 084302, 2011. https://doi.org/10.1063/1.3650456
  7. Hamilton. R.L., Crosser. O.K., Thermal conductivity of heterogeneous two-component systems, Ind. Eng. Chem. Fundamen., Vol. 1, p.187, 1962. https://doi.org/10.1021/i160003a005
  8. Gao. L., Zhou. X.F., Differential effective medium theory for thermal conductivity innanofluids, Physics Letters, Vol.348, pp.355-360, 2006 https://doi.org/10.1016/j.physleta.2005.08.069
  9. Do. K.H. and Jang. S.P., Effect of nanofluids on the thermal performance of a flat micro heat pipe with a rectangular grooved wick, In. J. of Heat and Mass Transfer, Vol.53, pp.2183-2192, 2010. https://doi.org/10.1016/j.ijheatmasstransfer.2009.12.020
  10. Seo. H.M., Park S.S., Kim.N.J., Characterisitics of carbon nano fluid added PVP, Journal of Air-conditioning and Refrigeration, Vol.22, NO.5, pp 289-295, 2010
  11. Bently, J.P., Temperature sensor characteristics and measurement system design, Journal of Physics E: Scientific Instruments, 1984, Vol.17, pp.430-435 https://doi.org/10.1088/0022-3735/17/6/002
  12. Nagasaka, Y. and Nagashima, A., Absolute Measurement of the thermal conductivity of electrically conducting liquids by the transient hot-wire method, Journal of Physics E: Scientific Instruments,1981, Vol.14, pp.1435-1440 https://doi.org/10.1088/0022-3735/14/12/020
  13. Park. S.S, Park. Y.C., Kim. N.J., Acomparative study on the characteristics of the MWCNTs and PVP added nanofluids, Korea Journal of Air-Conditioning and Refrigeration Engineering, Vol.23, No.1, pp.47-53. 2011. https://doi.org/10.6110/KJACR.2011.23.1.047