Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
권호 표지

Experimental Study on the Direct Contact Thermal Screw Drying of Sawdust for Wood-Pellet Fuel

  • Lee, Hyoung-Woo (Inst. of Agri. Sci. & Tech., College of Agriculture, Chonnam Nat'l Univ.)
  • Received : 2006.12.26
  • Accepted : 2007.01.30
  • Published : 2007.03.25
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Abstract

Wood fuel must be dried before combustion to minimize the energy loss. Sawdust of Japanese red pine was dried in a direct contact thermal screw dryer to investigate the drying characteristics of sawdust as a raw material for bio-fuel. Average drying rate and energy efficiency was 1.4%/min and 69.23% at $100^{\circ}C$, respectively, and those at $120^{\circ}C$ was 2.1%/min and 71.03%, respectively.

Keywords

References

  1. Fyhr, C. and A. Rasmuson. 1997. Steam drying of wood chips in pneumatic conveying dryers. Drying Technology 15(6&8): 1775-1785 https://doi.org/10.1080/07373939708917326
  2. Hennansson, M., P. Andersson, and R. Wimmerstedt. 1992. Steam drying of wood fuels. Drying Technology 10(5): 1267-1286 https://doi.org/10.1080/07373939208916517
  3. Johansson, A. and A. Rasmuson. 1997. The influence of the drying medium on high temperature convective drying of single wood chips. Drying Technology 15 (6&8): 1801-1813 https://doi.org/10.1080/07373939708917328
  4. Lee, H. Y. 2006. Study on the fluidized-bed drying characteristics of sawdust as a raw-material for wood pellet fuel. Journal of the Wood Science and Technology 34(2): 30-36
  5. Moreno, R. and J. Oyarzo. 1998. Sawdust fluidbed drying with heating tubes. Drying Technology 16(1&2): 351-367 https://doi.org/10.1080/07373939808917410
  6. Renstrom, R. and J. Berghel. 2002. Drying of sawdust in an atmospheric pressure spouted bed steam dryer. Drying Technology 20(2): 449-464 https://doi.org/10.1081/DRT-120002551
  7. Yrjola, J. and J. J. Saastamoinen. 2002. Modelling and practical operation results of a dryer for wood chips. Drying Technology 20(6): 1077-1099 https://doi.org/10.1081/DRT-120004041
  8. Vinterback, J. 2004. Pellets 2002: the first world conference on pellets. Biomass & Bioenergy (in press)