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Mass flow rate and permeability measurements in microporous media.

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Title: Mass flow rate and permeability measurements in microporous media.
Authors: Johansson, M.V.1 martin-viktor.johansson@univ-amu.fr, Testa, F.1, Zaier, I.1, Perrier, P.1 pierre.perrier@univ-amu.fr, Bonnet, J.P.2 jean-philippe.bonnet@univ-amu.fr, Moulin, P.2 philippe.moulin@univ-amu.fr, Graur, I.1 irina.martin@univ-amu.fr
Source: Vacuum. Dec2018, Vol. 158, p75-85. 11p.
Subjects: Permeability, Porous materials, Microfiltration, Pressure sensors, Molecule-molecule collisions
Abstract: Abstract The transient method of the mass flow rate measurements through a microporous media is developed and analyzed. This method is based on the constant volume technique and the exponential fit of the pressure evolution in each tank which allows calculating the permeability directly. The pressure relaxation time, a single fitting parameter, is introduced and its behaviors are analyzed in a large pressure range. By measuring the pressure relaxation time for one gas, the permeability of a microporous sample can be derived for the other gases. With the actual experimental setup, we measured the mass flow rate through the microporous media in the range 5⋅10−7−5⋅10−12 [kg s−1] and the permeability in the range 10−14−10−11 [m2]. Highlights • The transient method of the mass flow rate measurements through a microporous media is developed and analyzed. • The pressure relaxation time, single fitting parameter, is introduced and analyzed in a wide pressure range. • The mass flow rate through the microporous media is measured in the range 5E-7 – 5E-12 [kg/s]. • The permeability is measured in the range 1E-14-1E-11 [mˆ2]. • Gas nature dependence of the permeability is found. [ABSTRACT FROM AUTHOR]
Copyright of Vacuum is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 132628566
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  Data: Mass flow rate and permeability measurements in microporous media.
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  Data: <searchLink fieldCode="AR" term="%22Johansson%2C+M%2EV%2E%22">Johansson, M.V.</searchLink><relatesTo>1</relatesTo><i> martin-viktor.johansson@univ-amu.fr</i><br /><searchLink fieldCode="AR" term="%22Testa%2C+F%2E%22">Testa, F.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zaier%2C+I%2E%22">Zaier, I.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Perrier%2C+P%2E%22">Perrier, P.</searchLink><relatesTo>1</relatesTo><i> pierre.perrier@univ-amu.fr</i><br /><searchLink fieldCode="AR" term="%22Bonnet%2C+J%2EP%2E%22">Bonnet, J.P.</searchLink><relatesTo>2</relatesTo><i> jean-philippe.bonnet@univ-amu.fr</i><br /><searchLink fieldCode="AR" term="%22Moulin%2C+P%2E%22">Moulin, P.</searchLink><relatesTo>2</relatesTo><i> philippe.moulin@univ-amu.fr</i><br /><searchLink fieldCode="AR" term="%22Graur%2C+I%2E%22">Graur, I.</searchLink><relatesTo>1</relatesTo><i> irina.martin@univ-amu.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22Vacuum%22">Vacuum</searchLink>. Dec2018, Vol. 158, p75-85. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Permeability%22">Permeability</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Microfiltration%22">Microfiltration</searchLink><br /><searchLink fieldCode="DE" term="%22Pressure+sensors%22">Pressure sensors</searchLink><br /><searchLink fieldCode="DE" term="%22Molecule-molecule+collisions%22">Molecule-molecule collisions</searchLink>
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  Data: Abstract The transient method of the mass flow rate measurements through a microporous media is developed and analyzed. This method is based on the constant volume technique and the exponential fit of the pressure evolution in each tank which allows calculating the permeability directly. The pressure relaxation time, a single fitting parameter, is introduced and its behaviors are analyzed in a large pressure range. By measuring the pressure relaxation time for one gas, the permeability of a microporous sample can be derived for the other gases. With the actual experimental setup, we measured the mass flow rate through the microporous media in the range 5⋅10−7−5⋅10−12 [kg s−1] and the permeability in the range 10−14−10−11 [m2]. Highlights • The transient method of the mass flow rate measurements through a microporous media is developed and analyzed. • The pressure relaxation time, single fitting parameter, is introduced and analyzed in a wide pressure range. • The mass flow rate through the microporous media is measured in the range 5E-7 – 5E-12 [kg/s]. • The permeability is measured in the range 1E-14-1E-11 [mˆ2]. • Gas nature dependence of the permeability is found. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Vacuum is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.vacuum.2018.09.030
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        Text: English
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        PageCount: 11
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        Type: general
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      – SubjectFull: Microfiltration
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      – SubjectFull: Pressure sensors
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      – SubjectFull: Molecule-molecule collisions
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              Text: Dec2018
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