6533b873fe1ef96bd12d5560

RESEARCH PRODUCT

Non-isothermal mass transfer of ferrocolloids through porous membrane

Elmars BlumsGunars KronkalnsViesturs SintsAnsis Mezulis

subject

FerrofluidMaterials scienceDiffusionMass transferPhenomenological modelThermodynamicsMagnetic nanoparticlesCondensed Matter PhysicsThermophoresisPressure gradientIsothermal processElectronic Optical and Magnetic Materials

description

Abstract The present paper deals with transport properties of ferrofluid nanoparticles in non-isothermal capillary-porous layer. Experiment establishes that the temperature difference, which is applied across the layer, induces a thermoosmotic pressure gradient directed toward increasing temperature. The measurement results are interpreted in a frame of phenomenology of linear irreversible thermodynamics. The transport coefficients are evaluated comparing the measured separation curves with approximate solution of the corresponding mass transfer problem.

https://doi.org/10.1016/j.jmmm.2010.11.041