The differences in productivity and the effects of the operational environment for the chipping of bioenergy at roadside were determined.
The title of the article is “Chipping operations and efficiency in different operational environments”, and it appeared in Silva Fennica 46(2), pp 275 to 286. The authors were D Roser, B Mola-Yudego, R Prinz, B Emer and L Sikanen. Chipping operations at five study sites across Austria and Finland were researched. The different productivity variables that were investigated included forest energy assortments, tree species, sieve size and machines. Full trees, logging residue and stems were processed. The chipper studied across all sites was a Kesla C4560 drum chipper, mounted on a trailer and powered by a tractor. The drum chipper had 6 staggered knives.
The results showed significantly different chipping productivity differences between sites. This was mainly due to the use of different sieve sizes. Different operational environments and raw materials being processed also influenced productivity. To improve productivity across Central European conditions, the researchers indicated that solutions are required that allow a greater variation of chip sizes to be produced and consumed. The research also highlighted that more attention is required to the specification matching of the chipper, crane and grapple to ensure optimised chipper productivity and costs.
Please consult the journal for a more complete account of the research: http://www.metla.fi/silvafennica/
The title of the article is “Chipping operations and efficiency in different operational environments”, and it appeared in Silva Fennica 46(2), pp 275 to 286. The authors were D Roser, B Mola-Yudego, R Prinz, B Emer and L Sikanen. Chipping operations at five study sites across Austria and Finland were researched. The different productivity variables that were investigated included forest energy assortments, tree species, sieve size and machines. Full trees, logging residue and stems were processed. The chipper studied across all sites was a Kesla C4560 drum chipper, mounted on a trailer and powered by a tractor. The drum chipper had 6 staggered knives.
The results showed significantly different chipping productivity differences between sites. This was mainly due to the use of different sieve sizes. Different operational environments and raw materials being processed also influenced productivity. To improve productivity across Central European conditions, the researchers indicated that solutions are required that allow a greater variation of chip sizes to be produced and consumed. The research also highlighted that more attention is required to the specification matching of the chipper, crane and grapple to ensure optimised chipper productivity and costs.
Please consult the journal for a more complete account of the research: http://www.metla.fi/silvafennica/