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

  • 제30권9호
  • /
  • Pages.898-904
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  • 2006
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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정상상태 방법을 이용한 나노유체의 열전도율 측정

Measuring Thermal Conductivity of Nanofluids by Steady State Method

  • 이신표 (경기대학교 기계공학과)
  • Published : 2006.09.01
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Abstract

A new method measuring thermal conductivity of fluids is proposed in this research. It is based on the steady state heat transfer from a hot central cylinder to a cold outer cylinder located concentrically. This method guarantees more stable measurement than conventional THM(transient hot-wire method) due to its simplicity of theoretical principle. Measurements was made for the three nanofluid samples with different particle concentration of pure, 2% and 4%. Nanofluids are made by mixing the pure transformer oil with AlN nano particles. Design of the sensor module and experimental procedures are explained and comparison of the measuring data between present method and THM was made in detail.

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References

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