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Hosseini SH, Moradkhani MA, Rasteh M, Rahimi M. New Smart Models for Minimum Fluidization Velocity Forecasting in the Tapered Fluidized Beds Based on Particle Size Distribution. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02682] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Mojtaba Rasteh
- Department of Chemical Engineering, Hamedan University of Technology, Hamedan 65155-579, Iran
| | - Masoud Rahimi
- Department of Chemical Engineering, Razi University, Kermanshah 67149, Iran
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Bai W, Chu D, He Y. The minimum fluidization velocity and dynamic characteristics of agglomerated carbon nanotube in a tapered fluidized bed at elevated temperature. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Modeling of the Minimum Fluidization Velocity and the Incipient Fluidization Pressure Drop in a Conical Fluidized Bed with Negative Pressure. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10248764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The modeling of the minimum fluidization velocity (U0mf) and the incipient fluidization pressure drop (ΔPmf) is a valuable research topic in the fluidization field. In this paper, first, a series of experiments are carried out by changing the particle size and material mass to explore their effects on U0mf and ΔPmf. Then, an Ergun equation modifying method and the dimensional analysis method are used to obtain the modeling correlations of U0mf and ΔPmf by fitting the experimental data, and the advantages and disadvantages of the two methods are discussed. The experimental results show that U0mf increases significantly with increasing particle size but has little relationship with the material mass; ΔPmf increases significantly with increasing material mass but has little relationship with the particle size. Experiments with small particles show a significant increase at large superficial gas velocity; we propose a conjecture that the particles’ collision with the fluidization chamber’s top surface causes this phenomenon. The fitting accuracy of the modified Ergun equation is lower than that of the dimensionless model. When using the Ergun equation modifying method, it is deduced that the gas drag force is approximately 0.8995 times the material total weight at the incipient fluidized state.
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Koerich DM, Lopes GC, Rosa LM. Numerical study on the hydrodynamics of a fluidized-bed of bioparticles in tapered bioreactors with square shape cross-section. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2020. [DOI: 10.1007/s43153-020-00010-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Empirical models for minimum fluidization velocity of particles with different size distribution in tapered fluidized beds. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.07.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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