CFD Simulation and Experimental Analysis of Fluidization in a Model of an Oxyfuel Fluidized Bed Boiler
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Abstract
This contribution introduces the methods and tools allowing the validation of a CFD simulator of an oxyfuel bubbling fluidized bed boiler by means of measurements obtained from a laboratory-scale fluidization chamber. For simulations, a custom OpenFOAM solver is developed based on the Multiphase Particle-In-Cell framework for handling the fluid-particle and inter-particle interactions. Some of the solver design details are introduced. Thereafter, the experimental device and its operation are described. The experimental results in the form of video recordings of the fluidized bed subject to changing air flow rates are processed by automatic tools. Using this framework, a direct comparison with the simulation results is possible and the coefficients of the Harris-Crighton model of inter-particle stress are fitted to achieve agreement between simulations and experiment. Based on the results, some improvements of both the CFD model and the experimental methods are proposed.
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Beneš, M., Eichler, P., Klinkovský, J., Kolář, M., Smejkal, T., Solovský, J., Strachota, P., Žák, A., Hrdlička, J., & Skopec, P.
(2020).
CFD Simulation and Experimental Analysis of Fluidization in a Model of an Oxyfuel Fluidized Bed Boiler.
Proceedings Of The Conference Algoritmy, , 101 - 110.
Retrieved from http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/algoritmy/article/view/1559/823
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References
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[17] L. Zheng, editor. Oxy-fuel combustion for power generation and carbon dioxide (CO2 ) capture. Woodhead Publishing, 2011.
[2] M. J. Andrews and P. J. O'Rourke. The multiphase particle-in-cell (MP-PIC) method for dense particulate flows. Int. J. Multiphase Flow, 22(2):379-402, 1996.
[3] P. Basu. Combustion and Gasification in Fluidized Beds. CRC Press, 2006.
[4] M. Beneš, P. Eichler, J. Klinkovský, M. Kolář, J. Solovský, P. Strachota, and A. Žák. Modeling and simulation of bed dynamics in oxyfuel fluidized bed boilers. In Numerical Mathematics and Advanced Applications ENUMATH 2019, 2020. to appear.
[5] M. Beneš, P. Eichler, J. Klinkovský, M. Kolář, J. Solovský, P. Strachota, and A. Žák. Numerical simulation of fluidization for applications in oxyfuel combustion. Discrete. Cont. Dyn. S. S, online-first:1-15, 2020.
[6] M. Beneš, P. Strachota, R. Máca, V. Havlena, and J. Mach. A quasi-1D model of biomass cofiring in a circulating fluidized bed boiler. In J. Fuhrmann, M. Ohlberger, and C. Rohde, editors, Finite Volumes for Complex Applications VII - Elliptic, Parabolic, and Hyperbolic Problems, volume 78 of Springer Proceedings in Mathematics & Statistics, pages 791-799. Springer, 2014.
[7] D. Gidaspow. Multiphase Flow and Fluidization: Continuum and Kinetic Theory Description. Academic Press, 1994.
[8] Y. Liu and O. Hinrichsen. CFD modeling of bubbling fluidized beds using OpenFOAM: Model validation and comparison of TVD differencing schemes. Computers and Chemical Engineering, 69:75-88, 2014.
[9] M. M. Maroto-Valer, editor. Developments and innovation in carbon dioxide (CO2 ) capture and storage technology. Woodhead Publishing, 2010.
[10] S. Mehmood, B. V. Reddy, and M. A. Rosen. Energy analysis of a biomass co-firing based pulverized coal power generation system. Sustainability, 4:462-490, 2012.
[11] P. J. O'Rourke, P. P. Zhao, and D. M. Snider. A model for collisional exchange in gas/liquid/solid fluidized beds. Chem. Eng. Sci., 64(8):1784-1797, 2009.
[12] F. Sher, M. A. Pans, C. Sun, C. Snape, and H. Liu. Oxy-fuel combustion study of biomass fuels in a 20 kw fluidized bed combustor. Fuel, 215:778-786, 2018.
[13] D. M. Snider. An incompressible three-dimensional multiphase particle-in-cell model for dense particle flows. J. Comput. Phys., 170(2):523-549, 2001.
[14] D. M. Snider and P. J. O'Rourke. The multiphase particle-in-cell (MP-PIC) method for dense particle flow. In Computational Gas-Solids Flows and Reacting Systems: Theory, Methods and Practice, pages 277-314. IGI Global, 2011.
[15] M. Syamlal. The particle-particle drag term in a multiparticle model of fluidization. Topical Report DOE/MC/21353-2373, NTIS/DE87006500, National Technical Information Service, Springfield, VA, 1987.
[16] W.-C. Yang, editor. Handbook of Fluidization and Fluid-Particle Systems. Marcel Dekker, 2003.
[17] L. Zheng, editor. Oxy-fuel combustion for power generation and carbon dioxide (CO2 ) capture. Woodhead Publishing, 2011.