Journal
BIORESOURCE TECHNOLOGY
Volume 102, Issue 15, Pages 7366-7370Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.05.002
Keywords
Wood; Chips; Screening; Quality; Cost
Funding
- CARITRO Foundation [101]
- Post-doc programme 2006 of the Province of Trento, Italy
- COST FP902 STSM programme
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The study analyzed the performance of a mobile screening device for upgrading coarse wood chips to residential user standards, by removing oversize particles and fines. The machine was designed for transportation to forest landings, logistic terminals and plant chip yards. Average productivity was 1.9 oven-dry tons (odt) h(-1), corresponding to a screening cost of 28.5 (sic) odt(-1). This figure was lower than the price increase obtained by upgrading industrial chips to residential user standards. Hence, screening offered a profit of 4.7 (sic) odt(-1). or 16% of the original screening cost. The screening process was capable of upgrading chips from industrial to residential specifications, by reducing the incidence of oversize particles below the 1% critical threshold. Screening also allowed a substantial reduction in the content of fines. A similar effect was not verified for crushed wood, which failed to meet the specifications for residential fuel. (C) 2011 Elsevier Ltd. All rights reserved.
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