The attention of researches in convective heat transfer by suspended nanoparticles base fluids has grown lately to promote uncommon techniques for enhancing the thermal performance fluids. In this study, stability period and properties aluminium oxide (Al2O3), silicon dioxide (SiO2) Al2O3–SiO2 hybrid were investigated at volume concentration 0.1vol.% dispersed Distilled Water (DW) as a fluid. Fo...

The advancement of heat transfer techniques is a challenge to the researcher in this era. Implementation nanotechnology one potential which enhance rate significant amount. Subsequently, can reduce requirement pumping power. However, suspension nanoparticle with liquid produce new working fluid called nanofluid has better thermal and dynamic properties comparison
 pure introduced as typica...

An experimental investigation was carried out to study mixed convection heat transfer from Al2O3-water nanofluid inside a vertical, W-shaped, copper-tube with uniform wall temperature. The tests covered different ranges of some involved parameters including Reynolds number, temperature and particles volume fraction. The results showed that the rate of heat transfer coefficient improved with Rey...

Energy and exergy (EnE) efficiencies are considered the most important parameters to compare performance of various thermal systems. In this paper, an analysis was carried out for EnE a flat plate solar collector (FPSC) using four different kinds nanofluids as flowing mediums, namely, Al2O3/water, MgO/water, TiO2/water, CuO/water, compared with water medium (traditional base fluid). The made na...

In this paper, the natural convection heat transfer of Al2O3-EG-water nanofluid in a rectangular cavity which is heated from the bottom and is cooled from the top has been investigated numerically. The governing equations for a Newtonian fluid have been solved numerically with a finite volume approach using the SIMPLER algorithm. The main focus of the current study is on the effects of variable...

The present numerical work deals with the optimization of micro-channel heat sink using irreversibility analysis. nanofluid Al2O3-water different nanoparticles concentration and temperature-dependent property is chosen as a coolant. flow considered fully developed, steady, laminar in constant cross-section circular channels. Navier-Stokes energy equations are solved for single-phase total mass ...

in this paper, turbulent mixed convective heat transfer of water and al2o3 nanofluid has been numerically studied in a horizontal tube under non-uniform heat flux on the upper wall and insulation in the lower wall using mixture model. for the discretization of governing equations, the second-order upstream difference scheme and finite volume method were used. the coupling of pressure and veloci...

for better understanding the effect of nanofluid flow in a porous medium, a set of experiments were conducted on a horizontal glass micromodel for al2o3-water nanofluids. to characterize the flow of nanofluids the same experiment was done by pure water. the glass micromodel was constructed by a photolithography technique. the al2o3-water nanofluids were produced by a two-step method and no surf...

In this study, a 3D computational fluid dynamics (CFD) study was conducted in ANSYS (FLUENT) to examine the thermal performance of an automotive radiator using conventional and hybrid coolant with Al2O3 nanoparticles (NPs) . A mixture pure water H2Oand ethylene glycol (EG) volumetric proportion , coupled volume fraction 1% - 4% at different inlet temperatures. The Reynolds number varied from 4 ...

The influence of Coriolis body force, electro-magnetohydrodynamics (EMHD) and thermal radiative heat transfer on the Casson hybrid mixed convection nanofluid driven by an exponentially accelerated plate adjacent to a porous medium in rotating system is analyzed. Hybrid (Ag- Al2O3) Al2O3nanofluids are considered with ethylene glycol (EG) base fluid. Maxwell-Garnett model has been deployed derive...