Managing chipper knife wear to increase chip quality and reduce chipping cost

Raffaele Spinelli; Sotir Glushkov; Ivailo Markov

doi:10.1016/j.biombioe.2014.01.007

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Managing chipper knife wear to increase chip quality and reduce chipping cost

Journal article

Peer reviewed

Managing chipper knife wear to increase chip quality and reduce chipping cost

Raffaele Spinelli, Sotir Glushkov and Ivailo Markov

Biomass and Bioenergy, Vol.62, pp.117-122

2014

DOI: https://doi.org/10.1016/j.biombioe.2014.01.007

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Abstract

Engineering

Technology

Agricultural and Veterinary Sciences

productivity

wood

fuel

maintenance

sharpening

Wood biomass is turned into industrial fuel through chipping. The efficiency of chipping depends on many factors, including chipper knife wear. Chipper knife wear was determined through a long-term follow-up study, conducted at a waste wood recycling yard. Knife wear determined a sharp drop of productivity (>20%) and a severe decay in product quality. Dry sharpening with a grinder mitigated this effect, but it could not replace proper wet sharpening. Increasing the frequency of wet sharpening sessions determined a moderate increase of knife depreciation cost, but it could drastically enhance machine performance and reduce biomass processing cost. Since benefits largely exceed costs, increasing the frequency of wet sharpening sessions may be an effective measure for reducing overall chipping cost. If the main goal of a chipper operator is to increase productivity and/or decrease fuel consumption, then managing knife wear should be a primary target.

Details

Title: Managing chipper knife wear to increase chip quality and reduce chipping cost
Authors: Raffaele Spinelli (Author) - CNR IVALSA, Italy
Sotir Glushkov (Author) - Forest Research Institute, Bulgaria
Ivailo Markov (Author) - Forest Research Institute, Bulgaria
Publication details: Biomass and Bioenergy, Vol.62, pp.117-122
Publisher: Pergamon
Date published: 2014
DOI: 10.1016/j.biombioe.2014.01.007
ISSN: 0961-9534
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99448961902621
Output Type: Journal article

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