Abstract
Most of the previous convection experiments for nanofluids have been performed for internal tube flow with constant heat flux boundary condition. In contrast, a simple experimental apparatus measuring convective heat transfer coefficient from a heated wire to external nanofluids is proposed and its working principles are explained in detail. The convective heat transfer coefficient provided by the present system might be used as a useful indication justifying the adoption of prepared nanofluids as new efficient heat transfer fluids. Validation experiments by comparing convective heat transfer coefficients between the conventional correlation and measured values are carried out for base fluids. Also the effect of increased thermal conductivity of nano lubrication oil on the enhancement of convective heat transfer coefficient is investigated.
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This paper was recommended for publication in revised form by Associate Editor Simon Song
Shinpyo Lee is a professor of the department of mechanical engineering, Kyonggi University. Since 1996, his research has been mainly focused on the development of new heat transfer enhancement fluid called nanofluids. He measured the thermal conductivity and diffusivity of nanofluids by transient hot-wire method and performed the convective heat transfer experiments for various nanofluids. His current researches also include micro power generation and thermal managing for mobile equipment.
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Lee, S. An experimental apparatus measuring convective heat transfer coefficient from a heated fine wire traversing in nanofluids. J Mech Sci Technol 25, 135–142 (2011). https://doi.org/10.1007/s12206-010-1022-z
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DOI: https://doi.org/10.1007/s12206-010-1022-z