Influence of Tree Parts on Energetic Requirement of a Commercial Chipper
Civitarese, V.; Pari, L.; Assirelli, A.; Santangelo, E.; Spinelli, R.; Fanigliulo, R.; Pochi, D.
22st European Biomass Conference and Exhibition, 23-26 June 2014, Hamburg, Germany
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Via Giacomini 28, I - 50132 Florence
ETA - Florence Renewable Energies.
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|Abstract in English:|
Productivity and fuel consumption of a chipper are strongly related to piece size. In order to determine the effect of piece size and tree part on machine performance, a commercial drum chipper was fed alternately with poplar stems and poplar tops. Chipping stems required most of the available power (207 kW) delivered by the tractor, whereas chipping tops took about half that much. However, productivity was twice as large with stems, compared to tops (i.e. 25 and 11 oven dry tonnes per hour, respectively). As a consequence, specific fuel consumption per unit product was 15% lower with stems, compared to tops.