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Storage of Wood Chips: Effect of Chip Size on Storage Properties

Anerud, Erik and Larsson, Gunnar and Eliasson, Lars (2020). Storage of Wood Chips: Effect of Chip Size on Storage Properties. Croatian Journal Of Forest Engineering. 41 , 277-286
[Journal article]

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Abstract

To make forest biomass more competitive, increased efficiency in the handling and supply system is needed, thus producing high-quality fuel at a lower cost. Operating costs can be reduced if the target chip size is increased, as this increases productivity and reduces chipper fuel consumption. However, the chips need to be stored in order to meet fluctuating seasonal demand and maintain high machine utilisation. Due to biomass degradation, storage of comminuted biomass can lead to high energy losses, but can also increase fuel quality, e.g. by reducing moisture content and increasing net calorific value. This study evaluated the effects of storage on dry matter losses and differences in fuel quality of the stored biomass for three target chip sizes and three materials during six months of storage. The results showed that coarse chips had significantly lower moisture content and lower energy losses after storage than fine chips. Overall, changes during storage resulted in an economic loss of 3-4% per oven-dry ton for fine chips, but an economic gain of 2-6% for coarse chips. Thus increased target chip size can increase the competitiveness of forest biomass through decreased production costs and reduced storage costs. It can also ensure higher, more consistent fuel quality.

Authors/Creators:Anerud, Erik and Larsson, Gunnar and Eliasson, Lars
Title:Storage of Wood Chips: Effect of Chip Size on Storage Properties
Year of publishing :2020
Volume:41
Page range:277-286
Number of Pages:10
ISSN:1845-5719
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:storage, wood fuelchips, coarese wood chips, dry matter loss, fuel quality
URN:NBN:urn:nbn:se:slu:epsilon-p-108020
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108020
Additional ID:
Type of IDID
DOI10.5552/crojfe.2020.663
Web of Science (WoS)000567116600009
ID Code:17782
Faculty:S - Faculty of Forest Sciences
NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(S) > Department of Forest Biomaterials and Technology
(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:12 Oct 2020 13:48
Metadata Last Modified:12 Oct 2020 13:51

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