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Number of results
2014 | 35 | 3 | 361-368

Article title

Computational Modelling of a Tangentially Fired Boiler With Deposit Formation Phenomena


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Any complete CFD model of pulverised coal-fired boiler needs to consider ash deposition phenomena. Wall boundary conditions (temperature and emissivity) should be temporally corrected to account for the effects of deposit growth on the combustion conditions. At present voluminous publications concerning ash related problems are available. The current paper presents development of an engineering tool integrating deposit formation models with the CFD code. It was then applied to two tangentially-fired boilers. The developed numerical tool was validated by comparing it with boiler evaporator power variation based on the on-line diagnostic system with the results from the full CFD simulation.









Physical description


1 - 9 - 2014
17 - 10 - 2014
17 - 7 - 2013
30 - 6 - 2014
7 - 7 - 2014


  • Wroclaw University of Technology, Institute of Heat Engineering and Fluid Mechanics, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland


  • Asotani T., Yamashita T., Tominga H. Uesugi Y., Itaya Y., Mori S., 2008. Prediction of ignition behavior in a tangentially fired pulverized coal boiler using CFD. Fuel, 87, 482-490. DOI:10.1016/j.fuel.2007.04.018.[Crossref][WoS]
  • Belosevic S., Sijercic M., Oka S., Tucakovic D., 2006. Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace. Int. J. Heat Mass Transfer, 49, 3371-3380. DOI: 10.1016/j.ijheatmasstransfer.2006.03.022.[Crossref]
  • Belosevic S., Sijercic M., Tuckovic D., Crnomarkovic N., 2008. A numerical study of a utility boiler tangentiallyfired furnace under different operating conditions. Fuel, 87, 3331-3338. DOI: 10.1016/j.fuel.2008.05.014.[WoS][Crossref]
  • Browning G., Bryant G., Hurst H., Lucas J., Wall T., 2003. An empirical method for the prediction of coal ash slag viscosity. Energy Fuels, 17, 731-737. DOI: 10.1021/ef020165o.[Crossref]
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  • Degereji M., Ingham D., Ma L., Pourkashanian M., Williams A., 2012. Prediction of ash slagging propensity in a pulverized coal combustion furnace. Fuel, 101, 171-178. DOI: 10.1016/j.fuel.2010.12.038.[Crossref]
  • Fan J., Qian L., Ma Y., Sun P., Cen K., 2001. Computational modeling of pulverized coal combustion processes in tangentially fired furnaces. Chem. Eng. J., 81, 261-269. DOI: 10.1016/S1385-8947(00)00212-6.[Crossref]
  • Lockwood F., Lee F., 1999. Modeling ash deposition in pulverized coal-fired boilers. Prog. Energy Combust. Sci., 25, 117-132. DOI:10.1016/S0360-1285(98)00008-2.[Crossref]
  • Ma F., Iman P., Lu R., Sears L., Kong A., Rokanuzzaman D., Mccollor S., Benson S., 2007. A comprehensive slagging and fouling prediction tool for coal-fired boilers and its validation/application. Fuel Process. Technol., 88, 1035-1043. DOI: 10.1016/j.fuproc.2007.06.025.[Crossref][WoS]
  • Modliński N., 2010. Computational modeling of a utility boiler tangentially-fired furnace retrofitted with swirl burners. Fuel Process. Technol., 91, 1601- 1608. DOI: 10.1016/j.fuproc.2010.06.008.[WoS][Crossref]
  • Richter S., 2003. Numerische Simulation der Flugashdeposition in kohlestaubgefeuerten Dampferzeugern, Fortschritt-Berichte VDI, Reihe 6, Nr.501, VDI Verlag.
  • Yin C., Rossendahl L., Condra T., 2003. Further study of the gas temperature deviation in large-scale tangentially-fired boilers. Fuel, 82, 1127-1137. DOI: 10.1016/S0016-2361(02)00418-0.[Crossref]
  • Walsh P., Sayre A., Loehden D., Monroe L., Beer J., Sarofim S., 1990. Deposition of bituminous coal ash on an isolated heat exchanger tube: effects of coal properties on deposit growth. Prog. Energy Combust. Sci., 16, 327-346. DOI: 10.1016/0360-1285(90)90042-2.[Crossref]

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