Flow Modeling for Micro-filtration through electro-statically charged monolith filters

dc.contributor.advisorDr. Andrey V. Kuznetsov, Committee Chairen_US
dc.contributor.advisorDr. William Roberts, Committee Memberen_US
dc.contributor.advisorDr. Jack Edwards, Committee Memberen_US
dc.contributor.authorLad, Ankit Raghunathen_US
dc.date.accessioned2010-04-02T18:10:36Z
dc.date.available2010-04-02T18:10:36Z
dc.date.issued2009-11-30en_US
dc.degree.disciplineMechanical Engineeringen_US
dc.degree.levelthesisen_US
dc.degree.nameMSen_US
dc.description.abstractLAD, ANKIT RAGHUNATH. Flow Modeling for Micro-filtration through electro-statically charged monolith filters. (Under the direction of Dr. Andrey V. Kuznetsov.) This study is a multi-physics problem which aims at modeling fluid flow through electro-statically charged monolith filters with machined micro-channels. The multi-phase fluid (air) considered has suspended micro particles which are the impurities to be filtered out. The resulting particle trajectories due to the effect of the forces exerted on the particle such as the hydrodynamic drag, the electrostatic force of attraction and repulsion and Brownian diffusion are studied. The micro-filtration process is studied under the presence of an electric field developed due to the uniform density charge distributed over the channel surface. The model is validated by comparison with the experimental result. The advantage of using repulsive electric field instead of attractive electric field for filtration is studied. The unit cell filtration system is developed for normal and cross flow and the scope for efficiency improvement is tested. The possibility of ‘selective filtration’ is examined by using the multiple filter layer model and the role of different hole-orientation pattern is also studied. The experimental setup of the filtration system and the filter material strength for practical applications is discussed.en_US
dc.identifier.otheretd-08172009-161722en_US
dc.identifier.urihttp://www.lib.ncsu.edu/resolver/1840.16/2120
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dis sertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectmodelingen_US
dc.subjectfiltrationen_US
dc.subjectfilteren_US
dc.subjectelectrostaticen_US
dc.subjectfluiden_US
dc.subjectparticleen_US
dc.subjectsimulationen_US
dc.subjectmonolithen_US
dc.subjectefficiencyen_US
dc.titleFlow Modeling for Micro-filtration through electro-statically charged monolith filtersen_US

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