Table of Contents
Journal of Powder Technology
Volume 2015 (2015), Article ID 293165, 9 pages
http://dx.doi.org/10.1155/2015/293165
Research Article

Wall-to-Suspension Heat Transfer in a CFB Downcomer

1Department of Chemical Engineering, Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
2Department of Chemical Engineering, Process and Environmental Technology Lab, KU Leuven, Jan De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
3School of Engineering, University of Warwick, Coventry CV4 7AL, UK

Received 21 June 2015; Revised 11 August 2015; Accepted 18 August 2015

Academic Editor: Franco Berruti

Copyright © 2015 Huili Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. S. Mahmoudi, J. P. K. Seville, and J. Baeyens, “The residence time distribution and mixing of the gas phase in the riser of a circulating fluidized bed,” Powder Technology, vol. 203, no. 2, pp. 322–330, 2010. View at Publisher · View at Google Scholar · View at Scopus
  2. C. W. Chan, J. P. K. Seville, X. Fan, and J. Baeyens, “Solid particle motion in a standpipe as observed by Positron Emission Particle Tracking,” Powder Technology, vol. 194, no. 1-2, pp. 58–66, 2009. View at Publisher · View at Google Scholar · View at Scopus
  3. M. Van de Velden, J. Baeyens, J. P. K. Seville, and X. Fan, “The solids flow in the riser of a Circulating Fluidised Bed (CFB) viewed by Positron Emission Particle Tracking (PEPT),” Powder Technology, vol. 183, no. 2, pp. 290–296, 2008. View at Publisher · View at Google Scholar · View at Scopus
  4. M. Van de Velden, J. Baeyens, B. Dougan, and A. McMurdo, “Investigation of operational parameters for an industrial CFB combustor of coal, biomass and sludge,” China Particuology, vol. 5, no. 4, pp. 247–254, 2007. View at Publisher · View at Google Scholar · View at Scopus
  5. G. Flamant, D. Gauthier, H. Benoit et al., “Dense suspension of solid particles as a new heat transfer fluid for concentrated solar thermal plants: on-sun proof of concept,” Chemical Engineering Science, vol. 102, pp. 567–576, 2013. View at Publisher · View at Google Scholar · View at Scopus
  6. H. L. Zhang, G. Flamant, D. Gauthier et al., “The use of dense particle suspensions as heat transfer carrier in solar thermal plants,” in Proceedings of the 13th World Renewable Energy Congress (WRECXIII '14), Kingston University, London, UK, August 2014.
  7. J. R. Grace, “Heat transfer in circulating fluidized beds,” in Circulating Fluidized Bed Technology, P. Basu, Ed., pp. 63–82, Pergamon Press, Oxford, UK, 1986. View at Google Scholar
  8. J. Grace, “Heat transfer in high velocity fluidized beds,” in Proceedings of the 9th International Heat Transfer Conference, G. Hetsroni, Ed., vol. 1, pp. 329–339, Jerusalem, Israel, 1990.
  9. L. Glicksman, “Circulating fluidized bed heat transfer,” in Circulating Fluidized Bed Technology, P. Basu and J. F. Large, Eds., pp. 13–29, Pergamon Press, Oxford, UK, 1998. View at Google Scholar
  10. B. Leckner, “Heat transfer in circulating fluidized bed boilers,” in Circulating Fluidized Bed Technology III, P. Basu and M. Hasatani, Eds., pp. 27–38, Pergamon Press, Oxford, UK, 1991. View at Google Scholar
  11. P. Basu and P. Nag, “Heat transfer to walls of a circulating fluidized-bed furnace,” Chemical Engineering Science, vol. 51, no. 1, pp. 1–26, 1996. View at Publisher · View at Google Scholar
  12. K. Everaert, J. Baeyens, and K. Smolders, “Heat transfer from a single tube to the flowing gas-solid suspension in a CFB riser,” Heat Transfer Engineering, vol. 27, no. 6, pp. 66–70, 2006. View at Publisher · View at Google Scholar · View at Scopus
  13. F. Pitié, C. Y. Zhao, J. Baeyens, J. Degrève, and H. L. Zhang, “Circulating fluidized bed heat recovery/storage and its potential to use coated phase-change-material (PCM) particles,” Applied Energy, vol. 109, pp. 505–513, 2013. View at Publisher · View at Google Scholar · View at Scopus
  14. A. Brems, G. Cáceres, R. Dewil, J. Baeyens, and F. Pitié, “Heat transfer to the riser-wall of a circulating fluidised bed (CFB),” Energy, vol. 50, no. 1, pp. 493–500, 2013. View at Publisher · View at Google Scholar · View at Scopus
  15. H. L. Zhang, J. Baeyens, J. Degrève, A. Brems, and R. Dewil, “The convection heat transfer coefficient in a Circulating Fluidized Bed (CFB),” Advanced Powder Technology, vol. 25, no. 2, pp. 710–715, 2014. View at Publisher · View at Google Scholar · View at Scopus
  16. J.-X. Zhu, Z.-Q. Yu, Y. Jin, J. R. Grace, and A. Issangya, “Cocurrent downflow circulating fluidized bed (downer) reactors—a state of the art review,” Canadian Journal of Chemical Engineering, vol. 73, no. 5, pp. 662–677, 1995. View at Publisher · View at Google Scholar · View at Scopus
  17. J.-X. Zhu and F. Wei, “Recent developments of downer reactors and other types of short contact reactors,” in Fluidization VIII, J. F. Large and C. Laguerie, Eds., pp. 501–510, Engineering Foundation, New York, NY, USA, 1996. View at Google Scholar
  18. M. I. Roldán, E. Zarza, and J. L. Casas, “Modelling and testing of a solar-receiver system applied to high-temperature processes,” Renewable Energy, vol. 76, pp. 608–618, 2015. View at Publisher · View at Google Scholar · View at Scopus
  19. G. Zanganeh, A. Pedretti, A. Haselbacher, and A. Steinfeld, “Design of packed bed thermal energy storage systems for high-temperature industrial process heat,” Applied Energy, vol. 137, pp. 812–822, 2015. View at Publisher · View at Google Scholar · View at Scopus
  20. H. L. Zhang, J. Baeyens, J. Degrève, G. Cáceres, R. Segal, and F. Pitié, “Latent heat storage with tubular-encapsulated phase change materials (PCMs),” Energy, vol. 76, pp. 66–72, 2014. View at Publisher · View at Google Scholar · View at Scopus
  21. M. Van de Velden, J. Baeyens, A. Brems, B. Janssens, and R. Dewil, “Fundamentals, kinetics and endothermicity of the biomass pyrolysis reaction,” Renewable Energy, vol. 35, no. 1, pp. 232–242, 2010. View at Publisher · View at Google Scholar · View at Scopus
  22. M. Van de Velden, J. Baeyens, and I. Boukis, “Modeling CFB biomass pyrolysis reactors,” Biomass and Bioenergy, vol. 32, no. 2, pp. 128–139, 2008. View at Publisher · View at Google Scholar · View at Scopus
  23. A. Brems, J. Baeyens, and R. Dewil, “Recycling and recovery of post-consumer plastic solid waste in a European context,” Thermal Science, vol. 16, no. 3, pp. 669–685, 2012. View at Publisher · View at Google Scholar
  24. D. Bai, Y. Jin, and Z. Yu, “Momentum exchange between gas and solids in fast fluidized bed,” Journal of Chemical Industry and Engineering, vol. 5, pp. 548–553, 1991. View at Google Scholar
  25. S. Ergun and A. A. Orning, “Fluid flow through randomly packed columns and fluidized beds,” Industrial & Engineering Chemistry, vol. 41, no. 6, pp. 1179–1184, 1949. View at Publisher · View at Google Scholar
  26. T. Baumann and S. Zunft, “Moving bed heat exchanger for solar central receiver power plants: a multi-phase model and parameter variations,” in Proceedings of the International SolarPACES Conference, Marrakech, Morocco, 2012.
  27. T. Baumann, S. Zunft, and R. Tamme, “Moving bed heat exchangers for use with heat storage in concentrating solar plants: a multiphase model,” Heat Transfer Engineering, vol. 35, no. 3, pp. 224–231, 2014. View at Publisher · View at Google Scholar · View at Scopus
  28. M. H. I. Baird, N. V. R. Rao, E. Tackie, and A. Vahed, “Heat transfer to a moving packed bed of nickel pellets,” Canadian Journal of Chemical Engineering, vol. 86, no. 2, pp. 142–150, 2008. View at Publisher · View at Google Scholar · View at Scopus
  29. H. Zhang, J.-X. Zhu, and M. A. Bergougnou, “Hydrodynamics in downflow fluidized beds (1): solids concentration profiles and pressure gradient distributions,” Chemical Engineering Science, vol. 54, no. 22, pp. 5461–5470, 1999. View at Publisher · View at Google Scholar · View at Scopus
  30. H. Zhang and J.-X. Zhu, “Hydrodynamics in downflow fluidized beds (2): particle velocity and solids flux profiles,” Chemical Engineering Science, vol. 55, no. 19, pp. 4367–4377, 2000. View at Publisher · View at Google Scholar
  31. J. Ball and J.-X. Zhu, “A preliminary study into the local solids fluxes in a downer reactor,” Powder Technology, vol. 114, no. 1–3, pp. 96–101, 2001. View at Publisher · View at Google Scholar
  32. H. Chen and H. Li, “Characterization of a high-density downer reactor,” Powder Technology, vol. 146, no. 1-2, pp. 84–92, 2004. View at Publisher · View at Google Scholar · View at Scopus
  33. P. Lehner and K.-E. Wirth, “Characterization of the flow pattern in a downer reactor,” Chemical Engineering Science, vol. 54, no. 22, pp. 5471–5483, 1999. View at Publisher · View at Google Scholar
  34. Y. J. Kim, S. H. Lee, and S. D. Kim, “Coal gasification characteristics in a downer reactor,” Fuel, vol. 80, no. 13, pp. 1915–1922, 2001. View at Publisher · View at Google Scholar
  35. Y. Ma and J. Zhu, “Experimental study of heat transfer in a co-current downflow fluidized bed (downer),” Chemical Engineering Science, vol. 54, no. 1, pp. 41–50, 1999. View at Publisher · View at Google Scholar
  36. A. I. Tamarin and L. V. Gorbachev, “Measurement of the maximum rate of heat transfer between a bed of moving particles and a surface,” Journal of Engineering Physics, vol. 14, no. 1, pp. 37–39, 1968. View at Publisher · View at Google Scholar · View at Scopus
  37. Y. J. Kim, J. H. Bang, and S. D. Kim, “Bed-to-wall heat transfer in a downer reactor,” The Canadian Journal of Chemical Engineering, vol. 77, no. 2, pp. 207–212, 1999. View at Publisher · View at Google Scholar
  38. P. Lehner and K.-E. Wirth, “Effects of the gas/solids distributor on the local and overall solids distribution in a downer reactor,” Canadian Journal of Chemical Engineering, vol. 77, no. 2, pp. 199–206, 1999. View at Google Scholar · View at Scopus
  39. N. S. Obuskovic, Heat Transfer Between Moving Beds of Solids and a Vertical Tube, Oregon State University, 1988.
  40. B. Peters and A. Dziugys, “Heat transfer in fixed and moving packed beds predicted by the extended discrete element method,” in Advances in Industrial Heat Transfer, pp. 295–332, CRC Press, 2012. View at Google Scholar
  41. P. Basu, J. Butler, A. Dutta, and A. Leon, “Heat transfer in standpipe of circulating fluidised bed boiler,” Journal of the Energy Institute, vol. 82, pp. 87–94, 2013. View at Google Scholar
  42. J. Niegsch, D. Koneke, and P.-M. Weinspach, “Heat transfer and flow of bulk solids in a moving bed,” Chemical Engineering and Processing, vol. 33, no. 2, pp. 73–89, 1994. View at Publisher · View at Google Scholar · View at Scopus
  43. H. F. Meier, D. Noriler, and S. L. Bertoli, “A solution for a heat transfer model in a moving bed through the self-adjoint operator method,” Latin American Applied Research, vol. 39, no. 4, pp. 327–336, 2009. View at Google Scholar · View at Scopus
  44. S. Y. Wu and J. Baeyens, “Effect of operating temperature on minimum fluidization velocity,” Powder Technology, vol. 67, no. 2, pp. 217–220, 1991. View at Publisher · View at Google Scholar
  45. K. Smolders and J. Baeyens, “Design strategy for a gas/solid circulating fluidized bed reactor,” Powder Handling and Processing, vol. 11, no. 3, pp. 257–264, 1999. View at Google Scholar · View at Scopus
  46. K. Smolders and J. Baeyens, “The operation of L-valves to control standpipe flow,” Advanced Powder Technology, vol. 6, no. 3, pp. 163–176, 1995. View at Publisher · View at Google Scholar
  47. J. Baeyens, “Modelling approach to the effect of equipment scale on fluidised bed heat transfer data,” Journal of Powder & Bulk Solids Technology, vol. 4, no. 4, pp. 1–9, 1980. View at Google Scholar · View at Scopus
  48. W. R. A. Goossens, Fluid-Bed Heat Transfer, edited by: J. S. M. Botterill, Academic Press, London, UK, 1975.
  49. H. L. Zhang, J. Degrève, J. Baeyens, and R. Dewil, “Wall-to-bed heat transfer at minimum gas-solid fluidization,” Journal of Powder Technology, vol. 2014, Article ID 163469, 8 pages, 2014. View at Publisher · View at Google Scholar