Hydrodynamics and energy consumption studies in a three-phase liquid circulating three-phase fluid bed contactor

Rusumdar, Ahmad J; Abuthalib, A; Mohan, Vaka Murali; Srinivasa Kumar, C; Sujatha, V; Rajendra Prasad, P

doi:10.1016/J.EXPTHERMFLUSCI.2009.02.002

Title: Hydrodynamics and energy consumption studies in a three-phase liquid circulating three-phase fluid bed contactor

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Abstract

The hydrodynamics and energy consumption have been studied in a cold flow, bubbling and turbulent, pressurized gas-liquid-solid three-phase fluidized bed (0.15 m ID x 1 m height) with concurrent gas-liquid up flow is proposed with the intention of increasing the gas hold up. The hydrodynamic behaviour is described and characterised by some specific gas and liquid velocities. Particles are easily fluidized and can be uniformly distributed over the whole height of the column. The effect of parameters like liquid flow rate, gas flow rate, particle loading, particle size, and solid density on gas hold up and effect of gas flow rate, solid density and particle size on solid hold up, energy consumption and minimum fluidization velocity has been studied. At the elevated pressures a superior method for better prediction of minimum fluidization velocity and terminal settling velocities has been adopted. The results have been interpreted with Bernoulli's theorem and Richardson-Zaki equation. Based on the assumption of the gas and liquid as a pretend fluid, a simplification has been made to predict the particle terminal settling velocities. The Richardson-Zaki parameter n' was compared with Renzo's results. A correlation has been proposed with the experimental results for the three-phase fluidization. (author)

Authors:

Rusumdar, Ahmad J ^[1]; Abuthalib, A ^[2]; Mohan, Vaka Murali; Srinivasa Kumar, C ^[3]; Sujatha, V; Rajendra Prasad, P ^[4]

Thirumalai Engineering College, Kancheepuram, Tamil Nadu (India)
Dept. of Modelling, Leibniz Institute for Tropospheric Research, Permoserstr. 15, 04318 Leipzig (Germany)
Dept. of CSE, New Netaji Institute of Technology, Toopranpet, Nalgonda 508 252, AP (India)
Dept. of Chemical Engineering, Andhra University, College of Engineering, Visakhapatnam 530 003, AP (India)

Publication Date:: Wed Jul 15 00:00:00 EDT 2009

OSTI Identifier:: 21195810

Resource Type:: Journal Article

Journal Name:: Experimental Thermal and Fluid Science

Additional Journal Information:: Journal Volume: 33; Journal Issue: 5; Other Information: Elsevier Ltd. All rights reserved; Journal ID: ISSN 0894-1777

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; LIQUIDS; HYDRODYNAMICS; VELOCITY; ENERGY CONSUMPTION; FLUIDIZATION; GAS FLOW; PARTICLE SIZE; SOLIDS; DENSITY; FLUIDIZED BEDS; TURBULENCE; LIQUID FLOW; MULTIPHASE FLOW; CORRELATIONS; PARTICLES; BUBBLES; Gas-liquid-solid fluidization; Minimum fluidization velocity; Pseudo-fluid; Phase hold up

Citation Formats


                    Rusumdar, Ahmad J, Dept. of Modelling, Leibniz Institute for Tropospheric Research, Permoserstr. 15, 04318 Leipzig, Abuthalib, A, Mohan, Vaka Murali, Srinivasa Kumar, C, Sujatha, V, and Rajendra Prasad, P. Hydrodynamics and energy consumption studies in a three-phase liquid circulating three-phase fluid bed contactor.  United States: N. p., 2009. 
        Web.  doi:10.1016/J.EXPTHERMFLUSCI.2009.02.002.

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                    Rusumdar, Ahmad J, Dept. of Modelling, Leibniz Institute for Tropospheric Research, Permoserstr. 15, 04318 Leipzig, Abuthalib, A, Mohan, Vaka Murali, Srinivasa Kumar, C, Sujatha, V, & Rajendra Prasad, P. Hydrodynamics and energy consumption studies in a three-phase liquid circulating three-phase fluid bed contactor.  United States.  https://doi.org/10.1016/J.EXPTHERMFLUSCI.2009.02.002

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                    Rusumdar, Ahmad J, Dept. of Modelling, Leibniz Institute for Tropospheric Research, Permoserstr. 15, 04318 Leipzig, Abuthalib, A, Mohan, Vaka Murali, Srinivasa Kumar, C, Sujatha, V, and Rajendra Prasad, P. 2009.  
        "Hydrodynamics and energy consumption studies in a three-phase liquid circulating three-phase fluid bed contactor".  United States.  https://doi.org/10.1016/J.EXPTHERMFLUSCI.2009.02.002.

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@article{osti_21195810,

  title        = {Hydrodynamics and energy consumption studies in a three-phase liquid circulating three-phase fluid bed contactor},

  author       = {Rusumdar, Ahmad J and Dept. of Modelling, Leibniz Institute for Tropospheric Research, Permoserstr. 15, 04318 Leipzig and Abuthalib, A and Mohan, Vaka Murali and Srinivasa Kumar, C and Sujatha, V and Rajendra Prasad, P},

  abstractNote = {The hydrodynamics and energy consumption have been studied in a cold flow, bubbling and turbulent, pressurized gas-liquid-solid three-phase fluidized bed (0.15 m ID x 1 m height) with concurrent gas-liquid up flow is proposed with the intention of increasing the gas hold up. The hydrodynamic behaviour is described and characterised by some specific gas and liquid velocities. Particles are easily fluidized and can be uniformly distributed over the whole height of the column. The effect of parameters like liquid flow rate, gas flow rate, particle loading, particle size, and solid density on gas hold up and effect of gas flow rate, solid density and particle size on solid hold up, energy consumption and minimum fluidization velocity has been studied. At the elevated pressures a superior method for better prediction of minimum fluidization velocity and terminal settling velocities has been adopted. The results have been interpreted with Bernoulli's theorem and Richardson-Zaki equation. Based on the assumption of the gas and liquid as a pretend fluid, a simplification has been made to predict the particle terminal settling velocities. The Richardson-Zaki parameter n' was compared with Renzo's results. A correlation has been proposed with the experimental results for the three-phase fluidization. (author)},

  doi          = {10.1016/J.EXPTHERMFLUSCI.2009.02.002},

  url          = {https://www.osti.gov/biblio/21195810},
  journal      = {Experimental Thermal and Fluid Science},

  issn         = {0894-1777},

  number       = 5,

  volume       = 33,

  place        = {United States},

  year         = {Wed Jul 15 00:00:00 EDT 2009},

  month        = {Wed Jul 15 00:00:00 EDT 2009}

}

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