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ISSN Druckformat: 2572-4258
ISSN Online: 2572-4266
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MODEL OF SCALE DEPOSITION WITH MAGNETIC WATER TREATMENT
ABSTRAKT
Analysis of the behavior of nanosized colloidal particles in the oversaturated solution was used to justify a physical model of scaling reduction by magnetic treatment of the water flow. It was shown that as a result of deformation of a double electric layer the colloidal solution loses its stability and coagulation of nanosized colloidal particles begins. Due to increased effective radius of the nanoparticle curvature the solution becomes strongly oversaturated relative to the generated aggregates, thereby accelerating crystallization of the dissolved salts on the particles. The nanoobject interphase layer reduces the energy of generation of critical nuclei (the dimensional effect) and their size. Since coagulation tends to decrease the concentration of critical nuclei in the solution, such decrease should be replenished by homogeneous generation of new nuclei. This leads to additional increase in the concentration of suspended particles and enhances the anti-scaling effect. It is shown that the crystallized dissolved salts mostly deposit on the suspended nanoparticles not only due to increase of their total surface, but also because the mass transfer coefficient on suspended particles is by four orders of magnitude greater than on the wall. The mathematical model built on the basis of all physical processes allowed making quantitative assessment of the anti-scaling effect in real heat and power plants.
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Roi Ihor, Vaskina Iryna, Jozwiakowski Krzysztof, Vaskin Roman, Kozii Ivan, Influence of the Magnetic Field Gradient on the Efficiency of Magnetic Water Treatment, in Advances in Design, Simulation and Manufacturing III, 2020. Crossref