This study investigates a hybrid nanofluid flow towards stagnation region of vertical plate with radiation effects. The consists copper (Cu) and alumina (Al2O3) nanoparticles which are added into water to form Cu-Al2O3/water nanofluid. point describes the fluid motion in solid surface. In this study, both buoyancy assisting opposing flows considered. similarity equations obtained using transfor...

In this study, the exergy efficiency of a flat plate solar collector using Al2O3, TiO2, CuO nanoparticles and pure water as base fluid is studied. Solar radiation is selected between 200 to 600 W/m2. The method to determine optimum values of optimization variables has been developed by Genetic Algorithm Toolbox in MATLAB software. Results show by increasing solar radiation the optimized exergy ...

Numerous problems occur during engine operation, such as start-up, lack of lubrication, and overheating, resulting in components’ wear, power loss, fuel consumption. Nanomaterials dispersed oil can play an important role improving the tribological properties lubricants. This study investigated influence multi-walled carbon nanotubes (MWCNTs) aluminum oxide nanoparticles (Al2O3 NPs) nano-additiv...

Alumina is one of the most widely used ceramic materials as catalysts, catalyst supports and absorbents, and also wear resistant coating. This study focused on fabricating and characterizing of alumina ceramic nanoparticles fabricated using new and simple sol-gel method. Aluminium oxide (Al2O3) nanoparticles were synthesized by iron (III) nitrate 9-hydrate as precursor. Physicochemical properti...

The natural extract of Caryophyllus aromaticus (clove) and aluminum oxide nanoparticles (NPs) was packed in honey/chitosan (HTCs) to manufacturing biocompatible antibacterial nanofibrous wound bandage. This work will compare two types agents, the first is a which clove extracted from aromaticus, second metal nanoparticles, are 0xide nanoparticles. (CE) NPs (Al2O3 NPs) enriched HTCs prepare HTCs...

Ceria-terbia solid solution nanobelts were prepared by an electrochemical route and tested as catalysts of high activity for CO oxidation.

Three bimetallic Ni-Co (Ni:Co ratio 1:3, 1:1 and 3:1) two monometallic (Ni Co) nanoparticles supported on Al2O3 were synthesized by incipient wet impregnation characterized various technics (N2-physisorption, XRD, H2-TPR, CO-chemisorption elemental analysis). It was demonstrated XRD that NiCo alloys present solids. The catalytic properties of all catalysts determined for the hydrodeoxygenation ...

Nanoparticles have proven to be effective in sensible and latent heat exchanges alike. Applications of nanoparticles phase change processes are associated with migration resuspension upon which our existing knowledge is very limited. This work experimentally investigates the ratio, stability during change. Knowledge on ratio essential gauge thermal lubricative enhancements subsequent processes....

High-resolution electron microscopy was employed to characterize the interface structure of a cast Al-Mg-Si-Bi-Pb aluminium(6262)-based composite reinforced by alpha alumina particles with a trace of beta alumina in order to investigate the behaviour of alloying elements in cast composites. Except for a few primary Mg2Si particles, few reaction products were detected at the interface of Al/alph...