Computational Study of Heat Transfer Behavior in Fluid-Solid Fluidized Beds.
DOI:
https://doi.org/10.17656/sjes.10132Keywords:
Fluidization, Multiphase flow, Combined CFD-DEM, Heat transferAbstract
Heat transfer in fluid-solid fluidized beds is investigated using a combined of computational fluid dynamics (CFD) and discrete element method (DEM) approach, incorporated with a thermal model. The approach has taken into account almost all the mechanisms in heat transfer in fluidized beds. A comparison and validation of hydrodynamic and thermal data of fluidized bed obtained using CFD-DEM thermal approach with experimental and numerical results data in the literature is carried out. The simulations results reveal a good thermal steady state during the simulation time for calculating the thermal behaviors of fluidized beds like; the mean particle temperature, bed porosity, heat transfer coefficient and mean particle Reynolds number. The simulations results are showed a good agreement and consistency with the experimental and numerical data in the literatures. Thus, the integration of combined CFD-DEM with the thermal model is a step toward for the prediction, development the heat transfer efficiency in fluid-solid system, and the decrease of energy consumption of the industrial applications.
References
- Tsuji, Y., Kawaguchi, T. and Tanaka, T. ‘Discrete particle simulation of two-dimensional fluidized bed,’ Powder Technology, vol.77: pp.79–87, 1993.
- Patil, A.V., Peters, E.A.J.F. and Kuipers, J.A.M. ‘Comparison of CFD-DEM heat transfer simulations with infrared/visual measurements’, Chemical Engineering Journal, vol. 277, 1, pp. 388-401, 2015.
- Wang, C., Zhong, Z., Wang, X. and Alting, S. A. ‘Numerical simulation of gas-solid heat transfer behavior in rectangular spouted bed,’ Canadian Journal of Chemical Engineering, 93, pp. 2077-2083, 2015.
- Zhou, Z., Yu, A. and Zulli, P. ‘A new computational method for studying heat transfer in fluid bed reactors,’ Powder Technology, vol.197, pp. 102-110, 2010.
- Gan, J., Zhou, Z. and Yu, A. ‘Particle scale study of heat transfer in packed and fluidized beds of ellipsoidal particles,’ Chemical Engineering Science, vol. 144, pp. 201-215, 2016.
- Tsory, T., Ben-Jacob, N., Brosh, T. and Levy, A. ‘Thermal DEM–CFD modeling and simulation of heat transfer through packed bed,’ Powder Technology, vol. 244, pp. 52-60, 2013.
- Malone, F. and Xu, B.H. ‘Particle-scale simulation of heat transfer in liquid-fluidized beds,’ Powder Technology, vol. 184, pp. 189-204, 2008.
- Li, J.T., Mason, D.J. and Mujumdar, A.S. ‘A numerical study of heat transfer mechanisms in gas–solids flows through pipes using a coupled CFD and DEM model,’ Drying Technology, vol. 21, pp. 1839-1866, 2003.
- Kaneko, Y., Shiojima, T. and Horio, M. ‘DEM simulation of fluidized beds for gas-phase olefin polymerization,’ Chemical Engineering Science, vol. 54, pp. 5809-5821, 1999.
- Brosh, T. and Levy, A. ‘Modeling of heat transfer in pneumatic conveyer using a combined DEM–CFD numerical code,’ Drying Technology, vol. 28, pp.155-164, 2010.
- Brosh, T., Kalman, H. and Levy, A. ‘DEM simulation of particle attrition in dilute-phase pneumatic conveying,’ Granular Matter, vol. 2, pp.175-181, 2010.
- Shimizu, Y. ‘Three-dimensional simulation using fixed coarse-grid thermal-fluid scheme and conduction heat transfer scheme in distinct element method,’ Powder Technology, vol. 165, pp. 140-152, 2006. 13- Al-Arkawazi, S., Marie, C. and Coorevits, P.‘Modeling the heat transfer between fluid-granular medium,’ Applied Thermal Engineering, vol. 128, pp. 696–705, 2018.
- Archambeau, F., Méchitoua, N. and Sakiz, M. ‘ Code saturne : A finite volume code for the computation of turbulent incompressible flows - industrial applications,’ International Journal on Finite Volumes, vol. 1, no.1, pp. 1-62, 2004.
- Zabrodsky, S.S. ‘Hydrodynamics and Heat Transfer in Fluidized Beds,’ M.I.T Press, Cambridge, Massachusetts, 1966.
- Launder, B. E. and Spalding, D. B. ‘The numerical computation of turbulent flows,’ Computer Methods in Applied Mechanics and Engineering, vol. 3, 2, pp. 269-289, 1974.
- Cundall, P.A. and Strack, O.D.L. ‘A discrete numerical model for granular assemblies,’ Geotechnique 29 (1979) 47.
- Helland, E., Occelli, R. and Tadrist, L. ‘Computational study of fluctuating motions and cluster structures in gas-particle flows,’ International Journal of Multiphase Flow, vol. 28,pp. 199-223, 2002.
- Brown, P. and Lawler, D. ‘Sphere drag and settling velocity revisited,’ Journal Environment Engineering, 129, 3, pp. 222–231, 2003.
- Al-Arkawazi, S., Marie, C., Benhabib, K. and Coorevits, P.’Modeling the hydrodynamic forces between fluid–granular medium by coupling DEM-CFD,’ Chemical Engineering Research and Design, vol. 117, pp. 439–447, 2017.
- Vargas-Escobar, W.L.’Discrete Modeling of Heat Conduction in Granular Media,’ University of Pittburgh, Ph.D. thesis, 2002.
- Ranz, W. E. and Marshall, W. R. ‘Evaporation from drops : 1,’ Chemical Engineering Progress, Vol. 48, pp. 141, 1952.
- Li, J. and Mason, D. ‘Simulation of gas-solids flow in pipes with heat transfer using the distinct element method,’ Chem E Research Event, paper 71, published by Institution of Chemical Engineers, Rugby, UK, 1998.
- Kemp, I. C., Bahu, R. E. and Pasley, H. S. ‘Model development and experimental studies of vertical pneumatic conveying dryers,’ Drying Technology, vol. 12, pp.1323–1340, 1994.
- Laguerre, O., Amara, S. B. and Flick, D. ‘Heat transfer between wall and packed bed crossed by low velocity air flow,’ Applied Thermal Engineering, vol. 26, pp.1951–1960, 2006.
- Li, J. and Mason, D. ‘A computational investigation of transient heat transfer in pneumatic transport of granular particles,’ Powder Technology, vol. 112, pp. 273–282, 2000.
- Ehsani, M., Movahedirad, S. and Shahhosseini, S.’The effect of particle properties on the heat transfer characteristics of a liquid-solid fluidized bed heat exchanger,’ International Journal of Thermal Sciences vol.102, pp.111-121, 2016.
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