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Effects of raw mate...
Effects of raw material particle size distribution on the characteristics of Scots pine sawdust fuel pellets
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- Bergström, Dan (författare)
- Department of Forest Resource Management, Swedish University of Agricultural Sciences
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- Israelsson, Samuel (författare)
- Umeå universitet,Energiteknik och termisk processkemi,Energy Technology and Thermal Process Chemistry, Umeå University
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- Öhman, Marcus (författare)
- Luleå tekniska universitet,Energivetenskap
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- Dahlqvist, Sten-Axel (författare)
- Unit of Biomass Technology and Chemistry, SLU
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- Gref, Rolf (författare)
- Department of Forest Resource Management, Swedish University of Agricultural Sciences
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- Boman, Christoffer (författare)
- Umeå universitet,Energiteknik och termisk processkemi,Energy Technology and Thermal Process Chemistry, Umeå University
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- Wästerlund, Iwan (författare)
- Department of Forest Resource Management, Swedish University of Agricultural Sciences
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(creator_code:org_t)
- Amsterdam : Elsevier, 2008
- 2008
- Engelska.
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Ingår i: Fuel processing technology. - Amsterdam : Elsevier. - 0378-3820 .- 1873-7188. ; 89:12, s. 1324-1329
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- In order to study the influence of raw material particle size distribution on the pelletizing process and the physical and thermomechanical characteristics of typical fuel pellets, saw dust of Scots pine was used as raw material for producing pellets in a semi industrial scaled mill (similar to 300 kg h(-1)). The raw materials were screened to a narrow particle size distribution and mixed into four different batches and then pelletized under controlled conditions. Physical pellet characteristics like compression strength, densities, moisture content, moisture absorption and abrasion resistance were determined. In addition, the thermochemical characteristics, i.e. drying and initial pyrolysis, flaming pyrolysis, char combustion and char yield were determined at different experimental conditions by using a laboratory-scaled furnace. The results indicate that the particle size distribution had some effect on current consumption and compression strength but no evident effect on single pellet and bulk density, moisture content, moisture absorption during storage and abrasion resistance. Differences in average total conversion time determined for pellet batches tested under the same combustion conditions was less than 5% and not significant. The results are of practical importance suggesting that grinding of saw dust particle sizes below 8 mm is probably needless when producing softwood pellets. Thus it seem that less energy could be used if only over sized particles are grinded before pelletizing.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioenergi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioenergy (hsv//eng)
Nyckelord
- Wood-fuel
- Bioenergy
- Pelletizing
- Densification
- Burning
- Wood-residues
- Energy Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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