| 1. |
- Athanassiadis, Dimitris, et al.
(författare)
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Is there enough primary forest fuel available to feed into the existing and planned CHP facilities? The case of Northern Sweden
- 2010
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Ingår i: Publications / FINBIO. - 1239-4874. ; , s. 77-83
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Konferensbidrag (refereegranskat)abstract
- A combined GIS and optimization method was used to calculate logging residue (slash and stumps) flows and expected costs at the heating or combined heat and power plants (CHP) in Northern Sweden for two logging residue supply chains. Regional primary forest energy availability was estimated considering ecological, technical and economical restrictions. Two supply chains were considered: One supply chain was based on truck transport of the fuel to the CHP plants and the other one was based on collecting the fuel to terminals adjacent to railway lines and transporting it by train to plants that are located in Central Sweden. The costs for each supply chain were calculated based on current costs for harvesting, forwarding, chipping/crushing, machine allocation to the harvesting site, road transport, compensation to the land owner and administration. The lowest cost pathway to the plants was selected. The effects of the establishment of the CHP plants on regional development are discussed
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| 2. |
- Bergström, Dan, et al.
(författare)
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Development of efficient harvesting techniques for young bioenergy-thinnings
- 2011
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Ingår i: Publications / FINBIO. - 1239-4874. ; , s. 172-172
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Konferensbidrag (refereegranskat)abstract
- There has been increasing interest in new harvesting methods, techniques and systems for cost-efficient thinning of forest fuels from young dense stands. Current research has been focusing on applying boom-corridor thinning, meaning that the trees between strip-roads are felled in linear crane movements in narrow e.g. 1-1.5 m wide corridors with lengths corresponding to the cranes reach. Results from simulations, field studies and tests of prototype equipment for geometric boom-corridor thinning between strip-roads show potential to double the productivity, compared to conventional harvesting operations. Currently, efforts are being made to realize the operational possibilities of such technology. As described here, the first steps have been to specify the necessary requirements and evaluate prototypes virtually. The goal is to demonstrate a technical concept for continuous felling and boom-corridor accumulation of trees before bunching at strip-road sides
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