Comparing the efficiency of drum and disc chippers

Raffaele Spinelli; E Cavallo; L Eliasson; A Facello

doi:10.14214/sf.930

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Comparing the efficiency of drum and disc chippers

Journal article

Open access

Peer reviewed

Comparing the efficiency of drum and disc chippers

Raffaele Spinelli, E Cavallo, L Eliasson and A Facello

Silva Fennica, Vol.47(2), 930

2013

DOI: https://doi.org/10.14214/sf.930

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Abstract

Forestry Sciences

energy

biomass

fuel

wood

productivity

The study compared the effect of chipper type on productivity, power demand, fuel consumption and product quality. Tests were conducted on two commercial chipper models, a disc and a drum chipper. Both chippers had the same diameter capacity, were applied to the same tractor and fed with the same feedstock types. Fifteen replications were conducted per machine and for each of four different feedstock types, reaching a total of 120 tests. The disc chipper had a higher energy efficiency and used 19% less fuel per unit product, possibly due to its simpler design, integrating comminuting and discharge system in one synergic device. In contrast, the drum chipper was 8% more productive, since it cut with the same energy all along the length of its knives. The drum chipper produced smaller chips, with a higher incidence of fines. Feedstock type had a strong effect on productivity, energy efficiency and product quality. The effect of feedstock type was mainly related to piece size, and may be stronger than the effect of chipper type. Further studies should determine the effect of blade wear on the relative performance of the two chipper types.

Details

Title: Comparing the efficiency of drum and disc chippers
Authors: Raffaele Spinelli (Author) - CNR IVALSA, Italy
E Cavallo (Author) - CNR IVALSA, Italy
L Eliasson (Author) - Skogforsk, Sweden
A Facello (Author) - CNR IVALSA, Italy
Publication details: Silva Fennica, Vol.47(2), 930
Publisher: Suomen Metsatieteellinen Seura
Date published: 2013
DOI: 10.14214/sf.930
ISSN: 0037-5330
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99448762902621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Forestry

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