nanofluids – Page 3 – TechConnect Briefs

An Experimental Determination of Temperature-Dependent Thermal Conductivity of Cyclohexane-Based Nanofluids

Fan L., Khodadadi J.M., Auburn University, US

In extending their applicability , utilization of nanofluids as superior solid-liquid phase change materials (PCM) for thermal energy storage has been proposed recently. This extension of potential utility of nanofluids will require thermal conductivity measurements [...]

Thermal Conductivity and Viscosity Measurements of Water-Based Silica Nanofluids

Bobbo S., Colla L., Scattolini M., Agresti F., Barison S., Pagura C., Fedele L., CNR-Consiglio Nazionale delle Ricerche, IT

Nanofluids are a new class of fluids that could significantly improve the thermal properties of fluids used as thermal vectors. They are obtained by dispersing in common fluids (water, glycol, oil) solid nanoparticles (diameter <100 [...]

Hybrid molecular dynamics and Navier-Stokes method in complex nanoflow geometries

Borg M.K., Nicholls W., Reese J.M., University of Strathclyde, UK

We present a new hybrid method which applies molecular dynamics (MD) in regions of a computatational domain where nano-scale phenomena occurs, and couple it with a Navier-Stokes continuum formulation where applicable. We employ a domain [...]

MD boundary conditions for pressure gradient flows: nano-mixing, and nano-droplet deformation in extensional flows

Borg M.K., Nicholls W., Reese J.M., University of Strathclyde, UK

We develop new non-periodic boundary conditions in molecular dynamics (MD) simulations, applied to inlets and outlets of nanochannel flow problems. We demonstrate Poiseuille-type flow simulations for two applications in relatively complex geometries: a mixing channel [...]

Investigations on the convective heat transfer in Ag – and Cu – ethylene glycol nanofluids

Dzido G., Chmiel-Kurowska K., Gierczycki A., Jarzebski A.B., Institute of Chemical Engineering, Polish Academy of Science, PL

Common coolants as water, oil or ethylene glycol are characterized by poor thermal properties, i.e. convective heat transfer and heat conductivity coefficient. Addition of solid particles with size less than 100 nm can significantly improve [...]

Preparation of Copper-Bearing Nanofluids for Thermal Applications

Velasco A.F., Perales-Perez O.J., Gutiérrez G., University of Puerto Rico, PR

Stable suspension of nanometer solid particles in suitable solvents, so-called nanofluids, has shown enhanced thermal conductivity when compared with the fluid base. This feature enables these suspensions to be considered a promising material for efficient [...]

Preparation and Characterization of Various Nanofluids

Williams W.C., Bang I.C., Forrest E., Hu L.W., Buongiorno J., Massachusetts Institute of Technology, US

As part of an effort to evaluate water-based nanofluids for nuclear applications, preparation and characterization has been performed for nanofluids being considered for MIT’s nanofluid heat transfer experiments. Three methods of generating these nanofluids are [...]

Keywords: nanofluids