Simulation of nanoparticle aggregation processin heterogeneous dispersed systems

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dc.contributor.authorOlishevskyi, Valentyn
dc.contributor.authorVasylenko, Sergei
dc.contributor.authorBabko, Evhen
dc.contributor.authorLementar, Sviatoslav
dc.date.accessioned2020-09-30T09:19:57Z
dc.date.available2020-09-30T09:19:57Z
dc.date.issued2020
dc.description.abstractThe stady of particle aggretion is relevant and stidied in chemical technology, biophysics, in solving problems of purification from aerosol or colloidal contaminants. The influence og nanoparticles on the aggregation kineticsds. The influence of nanoparticles on the aggregation kinetics of dispersed phases in suspension is considered. Models based on modifications of the particle dynamics method taking into account Van der Waals forces, gravity, Brownie and Stokes forces based on semi-empirical dependences for the rate of aggregation and disaggregation in collisions are used. Based on the analysis of the Smolukhovsky equation, molecular kinetic and localisotropic turbulence of Kolmogorov's theories, the dynamics of simultaneous turbulent and Brownian transfer to the process of "rapid coagulation" and the mechanism of influence of nanoparticles on their accumulative ability in colloidal heterogeneous dispersion are proposed. The developed equations for the rate of kinetic energy scattering in a suspension makes it possible to determine the particle dispersion in which the Brownian diffusion of particles in the coagulation mechanism predominates. This means, the more intense the process of mixing the suspension, the greater the role in the process of coagulation, precipitation and filtration play particles of the nanoscale range, which are included in the rapid movement of the vortex. These results are useful for practical application in control of intensity of coagulation processes in mixing devices. Conclusions. The mechanism of influence of nanoparticles on their aggregation ability in colloidal heterogeneous disperse systems is offered.uk_UA
dc.identifier.citationSimulation of nanoparticle aggregation processin heterogeneous dispersed systems / V. Olishevskyi, S. Vasylenko, E. Babko, S. Lementar // Ukrainian Journal of Food Science. – 2020. – Vol. 8, Is. 1. – Р. 95-104.uk_UA
dc.identifier.issn2409-4951
dc.identifier.urihttps://dspace.nuft.edu.ua/handle/123456789/31897
dc.language.isoen_USuk_UA
dc.subjectcoaugulationuk_UA
dc.subjectaggregationuk_UA
dc.subjectnanoparticlesuk_UA
dc.subjectdiffusionuk_UA
dc.subjectdissipationuk_UA
dc.subjectкафедра технологічного обладнання та комп’ютерних технологій проектуванняuk_UA
dc.subjectкафедра теплоенергетики та холодильної технікиuk_UA
dc.titleSimulation of nanoparticle aggregation processin heterogeneous dispersed systemsuk_UA
dc.typeArticleuk_UA

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