Study on the Fluidized-Bed Drying Characteristics of Sawdust as a Raw-Material for Wood-Pellet Fuel

  • Lee, Hyoung-Woo (Inst. of Agri. Sci. & Tech., College of Agriculture, Chonnam Nat'l Uni.)
  • Received : 2005.04.29
  • Accepted : 2005.11.02
  • Published : 2006.03.25

Abstract

Wood fuel must be dried before combustion to minimize the energy loss. Sawdust of Japanese red pine was dried in a batch type fluidized-bed to investigate the drying characteristics of sawdust as a raw material for bio-fuel. The minimum fluidization air velocity was increased as particle size was increased. It took about 21 minutes and 8 minutes to dry 0.08 m-deep bed of particles with average particle size of 1.3 mm from 100% to 10% moisture content at air temperature of $20^{\circ}C$ and $50^{\circ}C$, respectively.

Keywords

Acknowledgement

Supported by : Chonnam National University

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