Study of a new approach for measuring thermal conductivity and diffusivity of materials
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Abstract
In the present work it has been studied the possibilities and limitations of non-stationary method, which uses heat as a source of light radiation. In this method, a new variant proposed by this group, the light is impinged evenly over one of the end surfaces of a cylinder lateral surface heat insulated, keeping the temperature constant at the other end.
Similarly, the possibility of using the above method for measuring the diffusivity and thermal conductivity (?,?) fluid is analyzed and how it could be used to check the validity of the Hamilton and Crosser´s model (HC) to the case of nano-fluids. It has been called nano-fluid, fluid anyone conventionally used for heat exchange, to which are added nano-particles in order to increase its thermal conductivity, thereby improving their ability to exchange heat.
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References
[2] Ficker, T. Department of Physics, Faculty of Civil Engineering, Technical Uni., Zizkova 17, CZ-602 00 Brno, Czech Republic, (1996).
[3] Huaqing Xie, Hoyun Lee, Wonjin Youn, and Mansoon Choi, Centre for Nanoparticle Control, Seoul National University, Korea (2003).
[4] Keblinski, P., S.R. Phillpot, S.U.S. Choi, Eastman, J.A. International Journal of Heat and Mass Transfer 45 (2002) 855-863.
[5] Q.Xue, Wen-Mei Xu, Materials Chemistry and Physics 90 (2005) 298- 301.
[6] Lee S., S.U.S Choi, Li S., Eastaman J.A., International Journal of Heat and Mass Transfer Vol 121, (1999).
[7] Xuan Yimin, and Q. Li, Int. J. Heat Fluid Flow 21, 58 (2000)
[8] Shawn, A. Putnam, Cahill David G., and Braun Paul V., Uni. Illinois, Urbana, Illinois 61801 (2005).
[9] Eastaman, J.A., S.U.S Choi, Li S., W. Yu, and Thompson, L., J. Appl. Phys. Lett. 78,718 (2001).
[10] S.U.S. Choi, Zhang Z.G., W. Yu, Lockwood, F.E., and Grulke E.A., Appl. Phys. Lett. 79,2252 (2001).
[11] Xuan Y., J. Wang, J. Xi, and Liu Y., Int. J. Thermophys. 23, 571 (2002).
[12] Klingenberg, Daniel J., University of Wisconsin, 1415 Engineering Drive, Madison, WI 54706 and Venerus David, IIT, CHE Dept 10 W. 33rd St., Chicago, IL 60616 (2006).
[13] Zhang, Xing; Gu, Fujii, Motoo, Journal of Applied Physics, Volume 100, Issue 4, pp.044325-044325-5 (2006).
[14] Dr. Marín, Ernesto, ‘Escuchando la luz’.
[15] Hamilton, R. L., and Crosser, O.K., 1962, ‘Thermal Conductivity of Theory of Heterogeneus Two-Componet System’, Vol 1. No33, No 10, pp 3125-3131.
[16] Maxwell, J.C., 1881, ‘A trasient on Electricity and Magnetism’ 2nd Ed., Vol. 1, Clarendon Press, Oxford, U.K., p.435.