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The effect of drum design on chipper performance
Journal article   Peer reviewed

The effect of drum design on chipper performance

Raffaele Spinelli, Eugenio Cavallo, Lars Eliasson, Alessio Facello and Natascia Magagnotti
Renewable Energy, Vol.81, pp.57-61
2015
DOI: https://doi.org/10.1016/j.renene.2015.03.008
url
https://doi.org/10.1016/j.renene.2015.03.008View
Published Version

Abstract

biomass energy productivity fuel wood
Chipper design is a main driver of production efficiency within forest fuel supply chains, but little scientific knowledge is available about the performance of different types. Two alternative drum chipper designs were tested on different feedstock types and under different knife wear conditions. The closed drum full-length knife design was more efficient than the open drum staggered-knife design, when negotiating branches, especially when knives were dull. Under these conditions, productivity was higher, fuel use lower and product quality better for the closed drum design. These differences were statistically significant. Therefore, a closed drum design is preferable when branches are the main feedstock, especially if product quality specifications are demanding. In general, the performance of both designs was significantly affected by feedstock type and knife wear.

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