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Improving the efficiency of forest fuel supply chains

Eriksson, Anders (2016). Improving the efficiency of forest fuel supply chains. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880 ; 2016:101
ISBN 978-91-576-8705-0
eISBN 978-91-576-8705-7
[Doctoral thesis]

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Forest biomass has gained much interest as a resource for renewable energy production world-wide. In Sweden, easily accessible secondary forest fuels, such as by-products from the conventional forest industry, are today already fully utilised. There is still potential for expansion by greater utilisation of primary forest fuels, which consist of biomass previously left in the forest after logging, e.g. tree stumps and logging residues. However, to increase the volumes of these fuels, more cost-efficient supply systems must be developed to overcome strong price competition from other fuels. Since forest fuels are low-value goods, the profit margins are tight, resulting in low acceptance for inefficiency. Storage, comminution and transport are all required to deliver a product with acceptable quality when needed by the end-user. However, there are many ways to organise the supply chain, including use of different machines, strategies and forms of work organisation, which together result in numerous possible systems.

This thesis assessed the efficiency in forest fuel supply chains and sought to provide decision support on how, where and when biomass should be managed and handled to deliver a high-value fuel with low input of resources. Finding more efficient ways to organise the supply chain can lead to increased amounts of primary forest fuels being brought to market at a profit. For this, good decision support on which system to use in different situations and the consequences of different choices is needed. The methodology used in this thesis was discrete-event simulation and models of different supply chain alternatives were developed.

The results indicated that there is no such thing as a perfect system, but that each system can have its own niche. A hot system with a high degree of machine dependency must have a proper balance in machine capacity to be efficient. For transport and comminution, ensuring high utilisation of the comminution unit is key to increased cost-efficiency. There is a strong link between quality parameters and supply chain activities, which ideally should be planned with respect to present quality. It is possible to tailor fuel deliveries concerning quality by delivering the right biomass at the right time.

Authors/Creators:Eriksson, Anders
Title:Improving the efficiency of forest fuel supply chains
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :2016
Depositing date:5 October 2016
Number of Pages:73
IEriksson, A., Eliasson, L., Hansson, P-A. & Jirjis R. (2014). Effects of supply chain strategy on stump fuel cost: A simulation approach. International Journal of Forestry Research 2014, ID 984395, 11.
IIEriksson, A., Eliasson, L. & Jirjis, R. (2014). Simulation-based evaluation of supply chains for stump fuel. International Journal of Forest Engineering 25(1), 23-36.
IIIEliasson, L, Eriksson, A. & Mohtasami, S. Analysis of factors affecting productivity and costs for a high productive chip supply systems. Submitted.
IVEriksson, A., Eliasson, L., Hansson, P-A., Sikanen, L. & Jirjis, R. Evaluation of delivery strategies for forest fuels applying a model for Weather-driven Analysis of Forest Fuel Systems. Submitted.
Place of Publication:Uppsala
Publisher:Department of Energy and Technology, Swedish University of Agricultural Sciences
ISBN for printed version:978-91-576-8705-0
ISBN for electronic version:978-91-576-8705-7
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:J Handling, transport, storage and protection of agricultural products > J12 Handling, transport, storage and protection of forest products
K Forestry > K11 Forest engineering
P Natural resources > P05 Energy resources management
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 207 Environmental Engineering > Energy Systems
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Renewable Bioenergy Research
Agrovoc terms:biofuels, supply chain, efficiency, logging wastes, stumps, fuelwood, comminution, transport, storage, logistics, decision support, simulation models, sweden
Keywords:bioenergy, discrete-event simulation, supply chain, stump wood, logging residues, forest fuel, transport, comminution, storage, fuel quality, modelling
Permanent URL:
ID Code:13701
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
External funders:Energimyndigheten and Skogforsk
Deposited By: Anders Eriksson
Deposited On:05 Oct 2016 11:34
Metadata Last Modified:10 Sep 2020 13:41

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