Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb Forces
When charged particles are exposed to an electric field the well-known Coulomb force acts on them. In this investigation, this force is utilized to induce vertical motion of spherical steel particles submerged in a dielectric liquid. The interelectrode space of a two parallel electrode system is fil...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2017-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=41776&issue_ID=238 |
| _version_ | 1818759481805242368 |
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| author | Ghiyam Eslami E. Esmaeilzadeh Pablo Garcia-Sanchez Amin Behzadmehr S. Baheri Islami |
| author_facet | Ghiyam Eslami E. Esmaeilzadeh Pablo Garcia-Sanchez Amin Behzadmehr S. Baheri Islami |
| author_sort | Ghiyam Eslami |
| collection | DOAJ |
| description | When charged particles are exposed to an electric field the well-known Coulomb force acts on them. In this investigation, this force is utilized to induce vertical motion of spherical steel particles submerged in a dielectric liquid. The interelectrode space of a two parallel electrode system is filled with the liquid and dispersed steel particles, which become charged after contact with the electrodes. Experiments were carried out to measure the effect of this particle motion on the heat transfer between an electrode surface and an adjacent stagnant dielectric liquid. In order to interpret the experimental data, the dynamics of particles was analytically studied for low particle volume concentrations. Experimental results demonstrate significant heat transfer enhancement on low viscosity dielectric liquids. A detailed discussion is presented on the possible mechanisms responsible for such an enhancement. |
| first_indexed | 2024-12-18T06:43:25Z |
| format | Article |
| id | doaj.art-30bdc075ed7f4ccab264a8b0e5d7c26c |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-12-18T06:43:25Z |
| publishDate | 2017-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-30bdc075ed7f4ccab264a8b0e5d7c26c2022-12-21T21:17:34ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722017-01-01101169182.Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb ForcesGhiyam Eslami0E. Esmaeilzadeh1Pablo Garcia-Sanchez2Amin Behzadmehr3S. Baheri Islami4university of tabrizMechanical Engineering Department, University of Tabriz, Tabriz, IranSeville university, SpainUniversity of Sistan and BaluchestanFaculty of Mechanical Engineering, Department of Mechanical Engineering, University of Tabriz, Tabriz, IranWhen charged particles are exposed to an electric field the well-known Coulomb force acts on them. In this investigation, this force is utilized to induce vertical motion of spherical steel particles submerged in a dielectric liquid. The interelectrode space of a two parallel electrode system is filled with the liquid and dispersed steel particles, which become charged after contact with the electrodes. Experiments were carried out to measure the effect of this particle motion on the heat transfer between an electrode surface and an adjacent stagnant dielectric liquid. In order to interpret the experimental data, the dynamics of particles was analytically studied for low particle volume concentrations. Experimental results demonstrate significant heat transfer enhancement on low viscosity dielectric liquids. A detailed discussion is presented on the possible mechanisms responsible for such an enhancement.http://jafmonline.net/JournalArchive/download?file_ID=41776&issue_ID=238Heat transfer enhancement; Particle motion; Coulomb forces; Dielectric liquid. |
| spellingShingle | Ghiyam Eslami E. Esmaeilzadeh Pablo Garcia-Sanchez Amin Behzadmehr S. Baheri Islami Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb Forces Journal of Applied Fluid Mechanics Heat transfer enhancement; Particle motion; Coulomb forces; Dielectric liquid. |
| title | Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb Forces |
| title_full | Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb Forces |
| title_fullStr | Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb Forces |
| title_full_unstemmed | Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb Forces |
| title_short | Heat Transfer Enhancement in a Stagnant Dielectric Liquid by the Up and Down Motion of Conductive Particles Induced by Coulomb Forces |
| title_sort | heat transfer enhancement in a stagnant dielectric liquid by the up and down motion of conductive particles induced by coulomb forces |
| topic | Heat transfer enhancement; Particle motion; Coulomb forces; Dielectric liquid. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=41776&issue_ID=238 |
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