Integrated Magnetohydrodynamic Pump with Magnetic Composite Substrate and Laser-Induced Graphene Electrodes

Khan, M. A.; Kosel, Jürgen

doi:10.3390/polym13071113

Cited by 6 publications

(3 citation statements)

References 28 publications

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“…The conductive liquid was considered Newtonian, which is dependent on its composition and the time that has passed since its preparation [7,10]. The conductive liquid was considered to be homogeneous, which is difficult to achieve under experimental conditions and is possible only in the first hours after preparation [3,4,11].…”

Section: Materials and Methods Of The Studymentioning

confidence: 99%

“…This allows to assert the need to use three-dimensional modeling. This becomes possible with the use of modern software, as in works [2][3][4][5][6][7], but the obtained wear characteristics allow analyzing the possibility of cleaning the pipeline. The experimental studies conducted in works [18,28] are valuable, adequate modeling of the flow of an electrically conductive liquid allows to significantly speed up and reduce the cost of scientific studies of such liquids.…”

Section: Influence Of Resistances On the Movement Of Magnetite Partic...mentioning

confidence: 99%

“…From the very beginning of the discovery of the special properties of magnetic liquids, they began to be studied for the creation of many devices: magnetohydrodynamic pumps, magnetohydrodynamic electricity generators, handling of liquids in melts [3][4][5]. But, later, serious attention of researchers began to be attracted to the possibility of using magnetic and electrically conductive liquids to clean liquids (most often water) from oil stains or spills.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of cleaning parameters of pipeline elements based on simulation of movement of solid magnetite particles in electrically conductive liquid

Rogovyi

Chernetska-Biletska

Miroshnykova

et al. 2023

EEJET

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The unique properties of liquids that can interact with electric and magnetic fields are used in mechanical engineering, technology and medicine. The possibility of the influence of the magnetic field on the solid particles of the liquid in the pipeline allows cleaning of the solid walls of the pipeline, which is the object of the study. Magnetic liquids are solutions of ferromagnets in a liquid, and their physical properties in a magnetic field cause structural transformations in such liquids. The treatment of electrically conductive liquids in a magnetic field and their use for cleaning water from oil or oil residues are considered. On the basis of numerical modeling, the movement of solid particles of magnetite, which is part of an electrically conductive liquid, was investigated by jointly solving the equations of Reynolds, Maxwell, non-discontinuity and the turbulence model. The physical phenomena of the movement of solid particles of magnetite-based conductive liquid in various elements of the pipeline were determined, which improved the parameters of cleaning liquids contaminated with oil and oil. The magnetic particles of the electrically conductive liquid quite nicely fill the boundaries of the intersection if there is a flow reversal, as it happens in radiators. An increase in the intensity of the magnetic field leads to a change in the velocity profile of the conductive liquid, which prevents magnetite particles from penetrating close to the wall. An increase in the power of the magnetic field makes it possible to detach the contamination from the walls of the pipeline together with the solid particle of magnetite. A 73 % increase in wear in certain sections of the pipeline is due to the effect of the centrifugal force acting on the particle during rotation. The sudden expansion of the flow makes it difficult for particles to reach the pipe surfaces, which worsens the cleaning conditions. The number of particles on the surface is 82 % less compared to the absence of sudden expansion

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