Paper details

Title:

Quality of Wooden Chips Produced by Claas Jaguar Equipped with Experimental CRA-ING Rotor

Author(s):

Pari, L., Civitarese, V., Del Giudice, A.

Document(s):

Abstract:

The Agriculture Engineering Research Unit of the Agricultural Research Council (Rome) has designed a new innovative chipper device to equip with Class Jaguar chipper harvesters for short rotation forestry harvesting. The new rotor differs from standard rotors as it has a lower number of blades and blade­holders, from 24 to only 10 and it has a different cutting angle and drum insertion. This study evaluates the particle­size distribution of chip produced by standard rotors compared to those with the experimental rotor. The scope of this study is to assess the particle size distribution of chips produced using the two types of chippers, and to evaluate a possible influence of wooden species in the chip formation process. The tests were conducted using 860 and 890 Claas Jaguar chipper harvesters, both equipped with standard and CRA­ING rotors. Furthermore, the experiment was conducted on poplar cultivations on biennial shift and on arboreal cultivations, the latter being cut down previously. As opposed to using traditional rotors, CRA­ING rotors provide a significant product increase within particle sizes ranging from 12.5 to 25 mm, and an equivalent product reduction within the finest particle size classes. However, it is evident that the new rotor tends to concentrate dimensional increments along the longitudinal section of the chip, regardless of the species used. Therefore, following the results, a second rotor was designed to engrave a cleaner cut on the biomass introduced by the feeding rollers, thereby obtaining a superior quality of chip in terms of particle size and increasing the size of the chip even in radial or tangential sections.

Keywords:

logistics, short rotation forestry (SRF), wood chips

Topic:

Fuels from biomass

Subtopic:

Production, supply and use of solid biofuels

Event:

18th European Biomass Conference and Exhibition

Session:

VP3.1.19

Pages:

1717 - 1720

ISBN-13:

978-88-89407-56-1

ISBN-10:

88-89407-56-5

Paper DOI:

10.5071/18thEUBCE2010-VP3.1.19

Price:

FREE