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Received December 21, 2013
Accepted March 25, 2014
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Scale up criteria for dual stirred gas-liquid unbaffled tank with concave blade impeller
Department of Civil Engineering, Indian Institute of Technology Guwahati, India
bimk@iitg.ernet.in
Korean Journal of Chemical Engineering, August 2014, 31(8), 1339-1348(10), 10.1007/s11814-014-0090-7
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Abstract
Experimental investigation has been done in unbaffled gas-liquid stirred tanks using dual concave blade impeller to analyze the mass transfer, power consumption and gas holdup. Optimal impeller clearance has been suggested for lower and upper impeller based on maximum mass transfer rate. Numerical modeling has been done to analyze the flow pattern for different combinations of impeller clearance. The lower impeller positioned at 0.3 of tank diameter_x000D_
and clearance between lower and upper impeller at 0.4 of tank diameter gave the maximum mass transfer coefficient. Scale-up criteria for mass transfer rate, power and gas holdup have been developed for optimal geometrical similar systems of unbaffled stirred tanks with dual concave impeller.
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Hudcova V, Machon V, Nienow AW, Biotechnol. Bioeng., 34, 617 (1989)
Rutherford K, Lee KC, Mahmoudi SM, Yianneskis M, AIChE J., 42(2), 332 (1996)
Mahmoudi SM, Velocity and mixing characteristics of stirred vessels with two impellers, Ph. D. Thesis, University of London, England (1994)
Linek V, Moucha T, Sinkule J, Chem. Eng. Sci., 51(12), 3203 (1996)
Cui YQ, Vanderlans RG, Luyben KC, Chem. Eng. Sci., 51(11), 2631 (1996)
Markopoulos J, Pantuflas E, Chem. Eng. Technol., 24(11), 1147 (2001)
Khopkar AR, Tanguy PA, Chem. Eng. Sci., 63(14), 3810 (2008)
Ahmed SU, Ranganathan P, Pandey A, Sivaraman S, J. Biosci. Bioeng., 109(6), 588 (2010)
Taghavi M, Zadghaffari R, Moghaddas J, Moghaddas Y, Chem. Eng. Res. Des., 89(3A), 280 (2011)
Saito F, Nienow AW, Chatwin S, Moore IPT, J. Chem. Eng., 25, 281 (1992)
Cooke M, Middleton JC, Bush JR, Bioreactor fluid dynamics, Proceedings of 2nd Bioreactor Conference, Cambridge, UK (BHRA), 37 (1988)
Chen ZD, Chen JJJ, Chem. Eng. Res. Des., 77(2), 104 (1999)
Junker BH, Mann Z, Hunt G, Appl. Biochem. Biotechnol., 89(1), 67 (2000)
Mazzarotta B, AIChE Symp. Ser., 89, 112 (1993)
Rousseaux JM, Muhr H, Plasari E, Can. J. Chem. Eng., 79(5), 697 (2001)
Aloi LE, Cherry RS, Chem. Eng. Sci., 51(9), 1523 (1996)
Assirelli M, Bujalski W, Eaglesham A, Nienow AW, Chem. Eng. Sci., 63(1), 35 (2008)
Grisafi F, Brucato A, Rizzuti L, IChemE Symp. Ser., 136, 571 (1994)
Yoshida M, Kimura A, Yamagiwa K, Ohkawa A, Tezura S, J. Fluid Sci. Technol., 3, 282 (2008)
Rewatkar VB, Deshpande AJ, Pandit AB, Joshi JB, Can. J. Chem. Eng., 71, 226 (1993)
Puthli MS, Rathod VK, Pandit AB, Biochem. Eng. J., 23, 25 (2005)
Djelal H, Larher F, Martin G, Amrane A, J. Biotechnol., 125, 95 (2006)
Garcia-Ochoa F, Gomez E, Biotechnol. Adv., 27, 153 (2009)
Patil SS, Deshmukh NA, Joshi JB, Ind. Eng. Chem. Res., 43(11), 2765 (2004)
Ascanio G, Castro B, Galindo E, Chem. Eng. Res. Des., 82(9), 1282 (2004)
King RL, Hiller RA, Tatterson GB, AIChE J., 34, 506 (1988)
Deglon DA, Meyer CJ, Miner. Eng., 19, 1059 (2006)
Drew DA, Annu. Rev. Fluid Mech., 15, 261 (1983)
Khopkar AR, Kasat GR, Pandit AB, Ranade VV, Chem. Eng. Sci., 61(9), 2921 (2006)
Scargiali F, D'Orazio A, Grisafi F, Brucato A, Chem. Eng. Res. Des., 85(A5), 637 (2007)
Montante G, Paglianti A, Magelli F, Chem. Eng. Res. Des., 85(A5), 647 (2007)
Ranade VV, Computational flow modeling for chemical reactor engineering, Process Systems Engineering Series, Academic Press, New York (2002)
Kerdouss F, Bannari A, Proulx P, Chem. Eng. Sci., 61(10), 3313 (2006)
Elgobashi SE, Rizk MA, Int. J. Multiph. Flow, 15, 119 (1989)
Fluent 6.3 User’s Guide (2006)
Simonin C, Viollet PL, Numerical Methods for Multiphase Flows, 91, 65 (1990)
Bakker A, Vandenakker HE, Chem. Eng. Res. Des., 72(4), 594 (1994)
Kerdouss F, Bannari A, Proulx P, Bannari R, Skrga M, Labrecque Y, Comput. Chem. Eng., 32(8), 1943 (2008)
Ishii M, Zuber N, AIChE J., 25, 843 (1979)
Gray DJ, Treybal RE, Barnett SM, AIChE J., 28, 195 (1982)
Clark MW, Vermeulen T, AIChE J., 10, 420 (1964)
Deshmukh NA, Joshi JB, Chem. Eng. Res. Des., 84(A11), 977 (2006)
Scargiali F, Busciglio A, Grisafi F, Tamburini A, Micale G, Brucato A, Ind. Eng. Chem. Res., 52(42), 14998 (2013)
Rao AR, Kumar B, Korean J. Chem. Eng., 25(6), 1338 (2008)
