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Received February 9, 2015
Accepted July 10, 2015
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Hydrodynamics of multi-sized particles in stable regime of a swirling bed
Chin Swee Miin
Shaharin Anwar Sulaiman†
Vijay Raj Raghavan
Morgan Raymond Heikal
Muhammad Yasin Naz1
Department of Mechanical Engineering, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia 1Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia
Korean Journal of Chemical Engineering, November 2015, 32(11), 2361-2367(7), 10.1007/s11814-015-0151-6
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Abstract
Using particle imaging velocimetry (PIV), we observed particle motion within the stable operating regime of a swirling fluidized bed with an annular blade distributor. This paper presents velocity profiles of particle flow in an effort to determine effects from blade angle, particle size and shape and bed weight on characteristics of a swirling fluidized bed. Generally, particle velocity increased with airflow rate and shallow bed height, but decreased with bed weight. A 3o increase in blade angle reduced particle velocity by approximately 18%. In addition, particle shape, size and bed weight affected various characteristics of the swirling regime. Swirling began soon after incipience in the form of a supra-linear curve, which is the characteristic of a swirling regime. The relationship between particle and gas velocities enabled us to predict heat and mass transfer rates between gas and particles.
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Sreenivasan B, Raghavan VR, Chem. Eng. Process., 41(2), 99 (2002)
Lee SW, Liu Y, Can. J. Chem. Eng., 82(5), 1054 (2004)
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Abdulmouti H, Mansour TM, The technique of PIV and its applications, 10th International Congress on Liquid Atomization and Spray Systems, Kyoto, Japan (2006).
Kumar VV, Faizal M, Raghavan VR, Eng. e-Trans., 6, 70 (2011)
Kaewklum R, Kuprianov VI, Chem. Eng. Sci., 63(6), 1471 (2008)
Ellias N, Bi HT, Lim CJ, Grace JR, Powder Technol., 98, 124 (2004)
Cho D, Choi JH, Khurram MS, Jo SH, Ryu HJ, Park YC, Yi CK, Korean J. Chem. Eng., 32(2), 284 (2015)
Valverde JM, Pontiga F, Soria-Hoyo C, Quintanilla MAS, Moreno H, Duran FJ, Espin MJ, Phys. Chem. Chem. Phys., 13, 4906 (2011)
Whitty KJ, Siddoway M, Rev. Sci. Instrum., 81, 73305 (2010)
Chalermsinsuwan B, Thummakul T, Gidaspow D, Piumsomboon P, Korean J. Chem. Eng., 31(2), 350 (2014)
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CHOI JH, YI CK, SON JE, Korean J. Chem. Eng., 7(4), 306 (1990)
Sathiyamoorthy D, Horio M, Chem. Eng. J., 93(2), 151 (2003)
Wang C, Zhong Z, Wang X, Korean J. Chem. Eng., DOI:10.1007/s11814-015-0033-y. (2015)
Valverde JM, Pontiga F, Soria-Hoyo C, Quintanilla MAS, Moreno H, Duran FJ, Espin MJ, Phys. Chem. Chem. Phys., 13, 14906 (2011)
Kim J, Han G, Yi C, Korean J. Chem. Eng., 19(3), 491 (2002)
