A considerable number of studies can be found on the thermal conductivity of nanofluids in which Al 2 O 3 nanoparticles are used as additives. In the present study, the aim is to measure the thermal conductivity of very narrow Al 2 O 3 nanoparticles with the size of 5 nm suspended in...
The effective thermal conductivity of samples of cryocrystal nanocomposite obtained from argon and SiO2nanopowder was determined in the temperature interval 2–35 K using the steady-state method. The thermal conductivity of crystalline argon with nanoparticles of amorphous silica oxide embedded in its...
Stable mono nanofluids based on Therminol with Al2O3 and TiO2 nanoparticles, and hybrid Al2O3–TiO2 nanopowder as additives are prepared by the two﹕tep method. Oleic acid has been made as a surfactant. The impact of nanoparticle content and fluid temperature on thermal conductivity was ...
Thermal ConductivityElectrical ConductivityAluminum AlloysTo assess the effect of the dispersion of AlOnanoparticles into A356 Al alloy on both the electrical and thermal conductivities, A356/AlOmetal matrix nanocomposites (MMNCs) were fabricated using a combination of rheocasting and squeeze casting ...
However, the high conductivity of metallic and carbon-based fillers prevents their applications in electrical insulation field. Among thermally conductive ceramic particles, Al2O3 nanoparticles [8] are preferred due to their high resistivity, high λ (32 W/mK), and low cost [9,10]. However, ...
Suspended nanoparticles in conventional fluids, called nanofluids, have been the subject of intensive study worldwide since pioneering researchers recently... W Yu,DM France,JL Routbort - 《Heat Transfer Engineering》 被引量: 965发表: 2008年 Thermal conductivity and viscosity of Al2O3 nanofluid bas...
This is evident because the addition of nanoparticles causes a noticeable improvement in the effective thermal conductivity of the porous media. It is remarked that when [Math Processing Error]Da≥10−4 there is an optimum value of nanoparticles concentration for a maximum average Nusselt number ...
Nanofluid is a new class of heat transfer fluid which contains suspended metallic or nonmetallic nanoparticles in traditional fluid. In this paper, nanofluids containing low volume concentrations (0.1-0.5vol.%) of Al2O3 and SiO2 nanoparticles were produced using a two-step method with ultrasonication...
In different size of nanoparticles, thermal conductivity coefficient of nanocomposites has increased with increasing of the nanoparticle concentration. Also, the ... M Jafarian,M Omid,M Khanali,... 被引量: 0发表: 2019年 Thermal conductivity reduction in core-shell nanowires Using nonequilibrium mole...
where λPVT is the thermal conductivity; δPVT is the thickness. Qtube=λtubeδtubeAtube(TMXene−PCM−Ttube)=hMXene−PCM−fluidAtube(Ttube−TMXene−PCM−fluid)=m⋅CpMXene−PCM−fluidΔTMXene−PCM−fluidQtube=λtubeδtubeAtube(TMXene−PCM−Ttube)=hMXene−PC...