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1392/6/13، جلد ۵، شماره ۳، صفحات -
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژههای فارسی مقاله |
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| عنوان انگلیسی |
Investigation of Gas Hold up and Power Consumption in a Stirred Tank Bioreactor Using Single and Dual Impeller Configurations |
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| چکیده انگلیسی مقاله |
A laboratory stirred tank bioreactor with sixsingle and dual-impeller configurations was tested to obtain the optimumoperating conditions for future biological processes. Six impeller combinationsconsisting of three basic impeller types, namely Rushton turbine (RT), pitched4blade (P4B) and pitched 2blade (P2B) downward flow were investigated in 1.77 Lbioreactor working volume. Power consumption and gas hold-up measurements weretaken over a range of 100-1000 rpm of stirring speed and 1-5 Lmin-1of air flowrates, for all the six combinations consisting of any single anddual impellers. Using predicted data some empirical correlations were derivedwhich present relations in estimation of power consumption in stirred tankswith various impeller configurations. Electrical measurement method was use todetermine the power drown in the stirred bioreactor. Gashold-up increased with an increase in stirring speed and superficial gasvelocity for all the impellers employed. The number and type of impellers instirred bioreactor had considerable influence on gas hold-up behavior of thestirred bioreactor. Besides, Rushton turbine-dual Impeller gavecomparably maximum gas hold-up, but at significantly higher power consumptionlevels. The proposed correlations offered good agreement with the experimentaldata. |
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| کلیدواژههای انگلیسی مقاله |
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| نویسندگان مقاله |
30202---30203---30204---30205---30206---30207---30208--- |
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| نشانی اینترنتی |
http://ijoh.tums.ac.ir/index.php/ijoh/article/viewArticle/105 |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
Articles |
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