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A review and analysis on influence of temperature and concentration of nanofluids on thermophysical properties, heat transfer and pumping power

Vajjha, Ravikanth S. ; Das, Debendra K.

International journal of heat and mass transfer, 2012-07, Vol.55 (15-16), p.4063-4078 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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Título:
A review and analysis on influence of temperature and concentration of nanofluids on thermophysical properties, heat transfer and pumping power
Autor: Vajjha, Ravikanth S. ; Das, Debendra K.
Assuntos: ALUMINUM OXIDE ; Applied sciences ; Chemistry ; Colloidal state and disperse state ; COMPOSITES ; Condensed matter: structure, mechanical and thermal properties ; Convective heat transfer ; Energy ; Energy. Thermal use of fuels ; Euler number ; Exact sciences and technology ; Fluid dynamics ; FLUID FLOW ; FLUIDITY ; Friction factor ; General and physical chemistry ; Heat transfer ; MICROSTRUCTURES ; Mouromtseff number ; Nanocomposites ; Nanofluids ; Nanomaterials ; Nanostructure ; Nusselt number ; Physical and chemical studies. Granulometry. Electrokinetic phenomena ; PHYSICAL PROPERTIES ; Physics ; Prandtl number ; PROPERTIES ; Reynolds number ; SPECIFIC HEAT ; Theoretical studies. Data and constants. Metering ; Thermal diffusivity ; Thermal properties of condensed matter ; Thermal properties of small particles, nanocrystals, nanotubes ; Thermophysical properties
É parte de: International journal of heat and mass transfer, 2012-07, Vol.55 (15-16), p.4063-4078
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The Prandtl number, Reynolds number and Nusselt number are functions of thermophysical properties of nanofluids and these numbers strongly influence the convective heat transfer coefficient. The pressure loss and the required pumping power for a given amount of heat transfer depend on the Reynolds number of flow. The thermophysical properties vary with temperature and volumetric concentration of nanofluids. Therefore, a comprehensive analysis has been performed to evaluate the effects on the performance of nanofluids due to variations of density, specific heat, thermal conductivity and viscosity, which are functions of nanoparticle volume concentration and temperature. Two metallic oxides, aluminum oxide (Al2O3), copper oxide (CuO) and one nonmetallic oxide silicon dioxide (SiO2), dispersed in an ethylene glycol and water mixture (60:40 by weight) as the base fluid have been studied.
Editor: Kidlington: Elsevier Ltd
Idioma: Inglês

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A review and analysis on influence of temperature and concentration of nanofluids on thermophysical properties, heat transfer and pumping power

Vajjha, Ravikanth S. ; Das, Debendra K.

Kidlington: Elsevier Ltd

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