title: Permeability of wood pellets in the presence of fines.
abstract: Broken pellets and fines are produced when pellets are handled. The resistance to air flow was measured for clean pellets and for pellets mixed with 1-20% broken pellets (fines). A pellet diameter was 6mm. The lengths ranged from 6 to 12 mm. Clean pellets were defined as particles that remained on a 4mm screen. A typical sieve analysis showed 30% of the mass of particles that passed through the 4mm screen was smaller than 1mm. The airflow rates used in the experiment ranged from 0.004 to 0.357 ms(-1). The corresponding pressure drop ranged from 1.9 to 271 Pam(-1) for clean pellets, from 4.8 to 1100 Pam(-1) for 10% fines content, and from 7.9 to 1800 Pam(-1) for 20% fines content. Coefficients of Hukill and Ives' equation were estimated for clean pellets and a multiplier was defined to calculate pressure drop for pellets mixed with fines.
authors.affiliation: Chemical and Biological Engineering Department, University of British Columbia, 2360 East Mall, Vancouver, BC, Canada V6T 1Z3.
authors.forename: F
authors.initials: F
authors.lastname: Yazdanpanah
authors.forename: S
authors.initials: S
authors.lastname: Sokhansanj
authors.forename: A K
authors.initials: AK
authors.lastname: Lau
authors.forename: C J
authors.initials: CJ
authors.lastname: Lim
authors.forename: X
authors.initials: X
authors.lastname: Bi
authors.forename: S
authors.initials: S
authors.lastname: Melin
authors.forename: M
authors.initials: M
authors.lastname: Afzal
mesh_terms: D000388:Air; D001709:Biotechnology / Q000379:methods*; D004391:Dust; D004867:Equipment Design; D010316:Particle Size; D010539:Permeability; D011312:Pressure; D015203:Reproducibility of Results; D013696:Temperature; D013997:Time Factors; D014934:Wood
chemical_list: D004391:Dust