Bergström, Dan
- Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
Abstract
Bundling small-diameter trees from thinnings has become a viable technology with the development of the Fixteri harvester-bundler. Several studies have measured the productivity of the machine, however, bundling also influences the whole supply chain. A study was conducted to investigate the quality of chips and productivity of five different conventional chippers and one grinder when comminuting bundles produced of small-diameter trees. The productivity based on dry mass was on average 44.8 tonne per effective working hour (E-0 H-1), and varied considerably between the machines; 1:2.3 being the observed relation between lowest and highest performance of machines. Productivity when comminuting bundles was 1.5-3.2 times higher than normally found in the literature for unbundled (loose) material. The quality of the produced fuel chips varied between machines in dry weight share of particle sizes
Keywords
Fuel wood; early thinnings; whole-tree bundles; Fixteri; comminution
Published in
International Journal of Forest Engineering
2016, volume: 27, number: 3, pages: 179-187
SLU Authors
Di Fulvio, Fulvio
- Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
- Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
Dahlin, Bo
- University of Helsinki
UKÄ Subject classification
Wood Science
Forest Science
Publication identifier
- DOI: https://doi.org/10.1080/14942119.2016.1223926
Permanent link to this page (URI)
https://res.slu.se/id/publ/78109