Browse > Article
http://dx.doi.org/10.3795/KSME-B.2011.35.2.113

An Experimental Study of Transient Hot-wire Sensor Module for Measuring Thermal Diffusivity of Nanofluids  

Lee, Shin-Pyo (Dept. of Mechanical System Engineering, Kyonggi Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.2, 2011 , pp. 113-120 More about this Journal
Abstract
A technique for measuring the thermal diffusivity of nanofluids is proposed in this study. In theory, it has been well known that the transient hot-wire method can be used to measure the thermal conductivity and diffusivity of fluids simultaneously. However, when traditional methods were employed, the accuracy of the calculated thermal conductivity was considerably higher than that of diffusivity. The proposed method has two advantages for practical use: it only needs a simple data-conversion process for calculating the diffusivity, and it can skip the tedious calibration process involved in the case of a wire sensor. A validation experiment for the new system has been performed with the basic fluids, and the comparison experiment to compare the change in diffusivity of the base oil and the change in diffusivity of the nano oil has been carried out. It is expected that the present system will provide numerous methods for investigating the variation in the thermal properties other than thermal conductivity.
Keywords
Nanofluids; Thermal Diffusivity; Thermal Conductivity; Transient Hot-wire Method;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 Lee, W. H. and Park, S. I., 2010, "A Study on the High Temperature Thermal Conductivity Measurement of Nanofluid Using a Two-Phase Model," Trans. of the KSME (B), Vol. 34, No. 2, pp. 153-156.   과학기술학회마을   DOI   ScienceOn
2 Nagasaka, Y. and Nagashima, A., 1981, "Simultaneous Measurement of the Thermal Conductivity and the Thermal Diffusivity of Liquids by the Transient Hot-wire Method," Rev. Sci. Instrum., Vol. 52, No. 2, pp. 229-232.   DOI   ScienceOn
3 Glatzmaier, G. C. and Ramirez, W. F., 1985, "Simultaneous Measurement of the Thermal Conductivity and Thermal Diffusivity of Unconsolidated Materials by the Transient Hot Wire Method," Rev. Sci. Instrum., Vol. 56, pp. 1394-1398.   DOI
4 Zhang, X. and Fujii, M., 2000, "Simultaneous Measurements of the Thermal Conductivity and Thermal Diffusivity of Molten Salts with a Transient Short-hot-wire Method," International Journal of Thermophysics, Vol. 21, No. 1, pp. 71-84.   DOI
5 Jwo, C. and Teng, T., 2005, "Experimental Study on Thermal Properties of Brines Containing Nanoparticles," Review of Advanced Material Science, Vol. 10, pp. 79-83.
6 Zhang, X., Gu, H. and Fujii, M., 2006, "Effective Thermal Conductivity and Thermal Diffusivity of Nanofluids containing Spherical and Cylindrical Nanoparticles," Journal of Applied Physics, Vol. 100, 044325.   DOI   ScienceOn
7 Brunn, H. H., 1995, Hot-Wire Anemometry, Oxford University Press, pp. 219-231.
8 Coughlin, R. F. and Driscoll F. F., 1991, Operational Amplifier and Linear Integrated Circuit, 4th Ed., Prentice-Hall International Ed., pp. 218-226.
9 Incropera, F. P. and DeWitt, D. P., 2001, Introduction to Heat Transfer, 6th Ed., Wiley, pp. 116-118.
10 Na, Y. S., Lee, J. S. and Kihm, K. D., 2009, "Effect of Convective Flow Condition on Effective Thermal Diffusivities of Water-based Alumina Nanofluids," Proceedings of the KSME fall Annual meeting, pp. 2984-2989.
11 Lee, S., 2008, "Measuring Convective Heat Transfer Coefficient Around a Heated Fine Wire in Cross Flow of Nanofluids," Trans. of the KSME (B), Vol. 32, No. 2, pp. 117-124.   과학기술학회마을   DOI   ScienceOn
12 Choi, U. S., 1995, "Enhancing Thermal Conductivity of Fluids with Nanoparticles," ASME International Mechanical Engineering Congress and Exposition, San Francisco, CA, Nov., 12-17.
13 Lee, S. and Kang, K., 2007, "Validation Test for Transient Hot-wire Method to Evaluate the Temperature Dependence of Nanofluids," Trans. of the KSME (B), Vol. 31, No. 4, pp. 341-348.   과학기술학회마을   DOI   ScienceOn
14 Lee, S., Choi, U. S., Li, S., and Eastman, J. A., 1999, "Measuring Thermal Conductivity of Fluids Containing Oxide Nanoparticles,” ASME Tran. J. Heat Transfer, Vol. 121, pp. 280-289.   DOI
15 Kim, S. H., Choi, S., Hong, J. and Kim, D. S., 2005, "Measurement of the Thermal Conductivity of Alumina / Zinc-Oxide / Titanium-Oxide Nanofluids," Trans. of the KSME (B), Vol. 29, No. 9, pp. 1065-1073.   과학기술학회마을   DOI   ScienceOn
16 Jang, S. P. and Choi, U. S., 2004, "Role of Brownian Motion in the Enhanced Thermal Conductivity of Nanofluids," Applied Physics Letters, Vol. 84, Issue 21, pp. 4316-4318.   DOI   ScienceOn
17 Johns, A. I., Scott, A. C., Watson, J. T. R. and Ferguson, D., 1988, "Measurement of the Thermal Conductivity of Gases by the Transient Hot-wire Method," Phil. Trans. R. Soc. Lond., Vol. A 325, pp. 295-356.
18 Roder, H. M., 1981, "A Transient Hot-wire Thermal Conductivity Apparatus for Fluids," Journal of Research of the NBS, Vol. 86, No. 5, pp. 457-493.
19 Perkins, R. A., Roder, H. M. and Nieto de Castro, C. A., 1991, "A High Temperature Transient Hot-wire Thermal Conductivity Apparatus for Fluids," Journal of Research of the NIST, Vol. 96, No. 3, pp. 247-269.   DOI