Thermal conductivity and specific heat capacity measurements of CuO nanofluids |
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Authors: | Benigno Barbés Ricardo Páramo Eduardo Blanco Carlos Casanova |
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Affiliation: | 1. Departamento de Física Aplicada, Universidad de Valladolid, 47011, Valladolid, Spain 2. área de Mecánica de Fluidos, Universidad de Oviedo, 33271, Gijón, Spain
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Abstract: | A study of thermal properties of CuO dispersed in water and ethylene glycol as a function of the particle volume fraction and at temperatures between 298 and 338 K has been performed. Thermal conductivities have been studied by the steady-state coaxial cylinders method, using a C80D microcalorimeter (Setaram, France) equipped with special calorimetric vessels. Heat capacities have been measured with a Micro DSC II microcalorimeter (Setaram, France) with batch cells designed in our laboratory and the “scanning or continuous method.” Results for thermal conductivities can be well justified using a classical model (Hamilton–Crosser), and experimental measurements of heat capacities can be justified with a model of particles in thermal equilibrium with the base fluid. |
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