Dominique Thomas - Academia.edu (original) (raw)
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Papers by Dominique Thomas
Cette etude a permis d'acquerir une base de donnees experimentales sur l'evolution de la ... more Cette etude a permis d'acquerir une base de donnees experimentales sur l'evolution de la perte de charge d'un filtre plisse a Tres Haute Efficacite (THE), pendant son colmatage en presence d'humidite par un aerosol micronique non-hygroscopique d'oxyde d'aluminium et un aerosol submicronique hygroscopique de chlorure de sodium. Les resultats obtenus avec l'aerosol non-hygroscopique ont montre que la fermeture des plis est d'autant plus rapide que l'humidite de l'air est grande ; ainsi, pour une meme masse d'aerosol deposee, la perte de charge du filtre est plus importante lorsque l'humidite de l'air est proche de la saturation. Avec l'aerosol hygroscopique etudie et pour des taux d'humidite relative en dessous de son point de deliquescence, les resultats montrent qu'en debut de colmatage, l'accroissement de la perte de charge du filtre est d'autant plus faible que l'humidite de l'air est grande, comme pou...
Separation and Purification Technology, 2019
Textile Research Journal, 2012
In air filtration, nonwoven materials are known to be pertinent structures for fine filtration an... more In air filtration, nonwoven materials are known to be pertinent structures for fine filtration and moderate pressure drop. In order to develop a filter that combines good permeability and high efficiency, it is important to identify the relevant structural parameters of the nonwoven. The main criteria studied in this paper are fiber fineness, solid volume fraction and basis length (total length of fiber in unit area of nonwoven). The effect of combining different fiber diameters in order to reach the best compromise is also investigated. Our results show that the use of binary blends of different fiber diameters improves overall filtration behavior, in comparison to nonwoven filters with equivalent unimodal diameter distribution. A theoretical filtration model is used to predict filtration behavior for different structural characteristics and these predictions are compared to experimental results. However, this comparison demonstrates the limits of existing models in the case of fib...
Journal of Nanoparticle Research, 2010
Journal of Hazardous Materials, 2011
Desalination and Water Treatment, 2010
Chemical Engineering Science, 2012
Separation and Purification Technology
Filtration and Separation, 2004
Dust and droplet filtration is an essential process step in many industries. Although many studie... more Dust and droplet filtration is an essential process step in many industries. Although many studies have been dedicated to the mechanisms of dust filtration, little is known about the behaviour of an air filter when challenged with solid and liquid particles at the same time. This research article answers questions about the pressure drop during the filtration of a solid/liquid
Cette etude a permis d'acquerir une base de donnees experimentales sur l'evolution de la ... more Cette etude a permis d'acquerir une base de donnees experimentales sur l'evolution de la perte de charge d'un filtre plisse a Tres Haute Efficacite (THE), pendant son colmatage en presence d'humidite par un aerosol micronique non-hygroscopique d'oxyde d'aluminium et un aerosol submicronique hygroscopique de chlorure de sodium. Les resultats obtenus avec l'aerosol non-hygroscopique ont montre que la fermeture des plis est d'autant plus rapide que l'humidite de l'air est grande ; ainsi, pour une meme masse d'aerosol deposee, la perte de charge du filtre est plus importante lorsque l'humidite de l'air est proche de la saturation. Avec l'aerosol hygroscopique etudie et pour des taux d'humidite relative en dessous de son point de deliquescence, les resultats montrent qu'en debut de colmatage, l'accroissement de la perte de charge du filtre est d'autant plus faible que l'humidite de l'air est grande, comme pou...
Separation and Purification Technology, 2019
Textile Research Journal, 2012
In air filtration, nonwoven materials are known to be pertinent structures for fine filtration an... more In air filtration, nonwoven materials are known to be pertinent structures for fine filtration and moderate pressure drop. In order to develop a filter that combines good permeability and high efficiency, it is important to identify the relevant structural parameters of the nonwoven. The main criteria studied in this paper are fiber fineness, solid volume fraction and basis length (total length of fiber in unit area of nonwoven). The effect of combining different fiber diameters in order to reach the best compromise is also investigated. Our results show that the use of binary blends of different fiber diameters improves overall filtration behavior, in comparison to nonwoven filters with equivalent unimodal diameter distribution. A theoretical filtration model is used to predict filtration behavior for different structural characteristics and these predictions are compared to experimental results. However, this comparison demonstrates the limits of existing models in the case of fib...
Journal of Nanoparticle Research, 2010
Journal of Hazardous Materials, 2011
Desalination and Water Treatment, 2010
Chemical Engineering Science, 2012
Separation and Purification Technology
Filtration and Separation, 2004
Dust and droplet filtration is an essential process step in many industries. Although many studie... more Dust and droplet filtration is an essential process step in many industries. Although many studies have been dedicated to the mechanisms of dust filtration, little is known about the behaviour of an air filter when challenged with solid and liquid particles at the same time. This research article answers questions about the pressure drop during the filtration of a solid/liquid