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Measurement of thermophoretic parameters for binary gas mixtures

The thermophoretic velocity of a particle in a gas mixture is measured by means of a microgravity experiment. Adopted particles are PMMA spheres of 2.91 mm in mean diameter, and gas mixtures chosen are argon–nitrogen, argon–carbon dioxide, and nitrogen–carbon dioxide. The temperature gradient and...

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Main Authors: Razali, Mohd Azahari, Mori, Masayuki, Suzuki, Masataro, Masuda, Wataru
Format: Article
Language:English
Published: Elsevier 2013
Subjects:
T Technology (General)
Online Access:http://eprints.uthm.edu.my/8091/1/J4281_b35882fc1a5c0a56bc2a245300a5fd63.pdf
http://eprints.uthm.edu.my/8091/
http://dx.doi.org/10.1016/j.jaerosci.2013.05.003
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spelling my.uthm.eprints.80912022-12-06T02:58:29Z http://eprints.uthm.edu.my/8091/ Measurement of thermophoretic parameters for binary gas mixtures Razali, Mohd Azahari Mori, Masayuki Suzuki, Masataro Masuda, Wataru T Technology (General) The thermophoretic velocity of a particle in a gas mixture is measured by means of a microgravity experiment. Adopted particles are PMMA spheres of 2.91 mm in mean diameter, and gas mixtures chosen are argon–nitrogen, argon–carbon dioxide, and nitrogen–carbon dioxide. The temperature gradient and the pressure are 60 K/mm and 70 kPa, respectively. Terminal velocities of particles suspended in a gas are individually measured. The tangential momentum accommodation coefficient is estimated from experimental result by assuming the thermal accommodation coefficient at unity, and it is compared with predictions calculated from values of composing pure gases by means of some methods given in references; among those methods, the intermolecular-interaction�based method is found to be the best for all mixture conditions. Elsevier 2013 Article PeerReviewed text en http://eprints.uthm.edu.my/8091/1/J4281_b35882fc1a5c0a56bc2a245300a5fd63.pdf Razali, Mohd Azahari and Mori, Masayuki and Suzuki, Masataro and Masuda, Wataru (2013) Measurement of thermophoretic parameters for binary gas mixtures. Journal of Aerosol Science, 63. pp. 60-68. http://dx.doi.org/10.1016/j.jaerosci.2013.05.003
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Razali, Mohd Azahari
Mori, Masayuki
Suzuki, Masataro
Masuda, Wataru
Measurement of thermophoretic parameters for binary gas mixtures
description The thermophoretic velocity of a particle in a gas mixture is measured by means of a microgravity experiment. Adopted particles are PMMA spheres of 2.91 mm in mean diameter, and gas mixtures chosen are argon–nitrogen, argon–carbon dioxide, and nitrogen–carbon dioxide. The temperature gradient and the pressure are 60 K/mm and 70 kPa, respectively. Terminal velocities of particles suspended in a gas are individually measured. The tangential momentum accommodation coefficient is estimated from experimental result by assuming the thermal accommodation coefficient at unity, and it is compared with predictions calculated from values of composing pure gases by means of some methods given in references; among those methods, the intermolecular-interaction�based method is found to be the best for all mixture conditions.
format Article
author Razali, Mohd Azahari
Mori, Masayuki
Suzuki, Masataro
Masuda, Wataru
author_facet Razali, Mohd Azahari
Mori, Masayuki
Suzuki, Masataro
Masuda, Wataru
author_sort Razali, Mohd Azahari
title Measurement of thermophoretic parameters for binary gas mixtures
title_short Measurement of thermophoretic parameters for binary gas mixtures
title_full Measurement of thermophoretic parameters for binary gas mixtures
title_fullStr Measurement of thermophoretic parameters for binary gas mixtures
title_full_unstemmed Measurement of thermophoretic parameters for binary gas mixtures
title_sort measurement of thermophoretic parameters for binary gas mixtures
publisher Elsevier
publishDate 2013
url http://eprints.uthm.edu.my/8091/1/J4281_b35882fc1a5c0a56bc2a245300a5fd63.pdf
http://eprints.uthm.edu.my/8091/
http://dx.doi.org/10.1016/j.jaerosci.2013.05.003
_version_ 1751538656554778624
score 13.211869

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