Study on the Effect of a New Rotor Designed for Chipping Short Rotation Woody Crops
Civitarese, V.; Del Giudice, A.; Suardi, A.; Santangelo, E.; Pari, L.
Croatian Journal of Forest Engineering
|Kind of publication:|
University of Zagreb
|Abstract in Italian:|
|Abstract in English:|
The particle size distribution of wood chips, along with the moisture content, are some of the
main parameters for defining the quality of most wood fuels. A new experimental rotor, powered
by the self-propelled forage harvester Claas Jaguar was developed by the Consiglio per la
ricerca in agricoltura e l'analisi dell'economia agraria (CRA), Agricultural Engineering Research
Unit (CRA-ING). The rotor allowed for improved dimensional features of wood chips.
The comminution achieved with the CRA–ING drum increased the percentage of 16–45 mm
wood chips fraction from 63.69% to 73.29%, and progressively reduced the fraction of chips
less than 16 mm from 35.20 to 25.35%. Consequently, the bulk density of the chips decreased
by 8.57% in comparison with products obtained by standard devices. The dimensional increments
achieved by the rotor and the percentage reduction of the smallest fractions represent
two valuable elements affecting the behaviour of the wood chips during storage and handling.