In a well-dispersed nanofluid with strong cluster-fluid attraction, thermal conduction paths can arise through percolating amorphouslike interfacial structures. This results in a thermal conductivity enhancement beyond the Maxwell limit of 3phi, with phi being the nanoparticle volume fraction. Our findings from nonequilibrium molecular dynamics simulations, which are amenable to experimental ve...

Molecular Dynamics simulations are performed to calculate thermal conductivity of nanofluids and to understand the fundamental physics of the enhancement in experiments. Based on the analysis, excess potential energy of nanoparticles suspended in the liquid plays the major role on the enhancement.

In recent decade, the new advanced nanofluids, composed from various particles, have attracted the attention of researchers. This class of nanofluids, which can be prepared by suspending several types (two or more than two) of nanoparticles in base fluid, is termed as hybrid nanofluids. In this work, an experimental investigation on the effects of temperature and concentration of nanoparticles ...

In this paper, we investigated the statistical analysis of thermal conductivity of nanofluids containing of decorated Ag nanorods with Cu nanoparticles. For this purpose Ag-Cu hybrid is synthesized and characterized using transmission electron microscopy (TEM) and X-ray diffraction pattern (XRD). TEM image shows that Cu nanoparticles successfully decorate on the outer surface of Ag nanorods. Th...

Nanofluids are extensively applied in various heat transfer mediums for improving their characteristics and hence performance. Specific capacity of nanofluids, as one the thermophysical properties, performs principal role thermal utilizing nanofluids. In this regard, different studies have been carried out to investigate influential factors on nanofluids specific heat. Moreover, several regress...

Nanofluids are engineered colloids composed of nano-size particles dispersed in common fluids such as water or refrigerants. Using an electrically controlled wire heater, pool boiling Critical Heat Flux (CHF) of Alumina and Silica water-based nanofluids of concentration less than or equal to 0.1 percent by volume were measured. Silica nanofluids showed CHF enhancement up to 68% and there seems ...

rheological characteristics of al2o3, cuo and tio2 nano particles were investigated in oil asthe base fluid at 1 and 2 wt.%. constitutive relations for non-newtonian fluid were discussedbased on the power-law model. measured viscosities of each nanofluid were used to evaluatethe power-law and consistency index. results indicated that the nanofluid viscosity decreasedby increasing the concentrat...