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Magazine article, 2000

Composite residue logs cut wood-fuel costs

Andersson, G; Norden, B; Jirjis, Raida; Åstrand, C


A summary is given of various studies conducted in Sweden into systems for compacting logging residue into cylindrical bales (approximately 3 m in length, diameter about 0.75 m, weight 400-600 kg) known as composite logging residue logs (CRLs). Each CRL has an energy output in excess of 1 MWh. The compaction units can be mounted on medium- or heavy-duty forwarders, weigh 5 to 6.5 t. Handling of the CRL bales is simple, as they can be managed in the same way as roundwood throughout forestry operations: conventional forwarders and roundwood haulage rigs can be used. Short reviews are given of studies into compaction, extraction, secondary haulage, storage, chipping, and comparative costs (with traditional chipping systems). CRL systems are still being developed, and further studies may focus on efficient methods for chipping CRLs, and securing bales safely during transport

Published in

Results - SkogForsk
2000, number: 1, pages: 1-4

Authors' information

Andersson, G
Nordèn, Berndt
Forestry Research Institute of Sweden, Skogforsk
Jirjis, Raida
Swedish University of Agricultural Sciences, Department of Energy and Technology
Åstrand, Cecilia
Swedish University of Agricultural Sciences, Department of Forest Products

UKÄ Subject classification

Renewable Bioenergy Research

URI (permanent link to this page)