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Secondary comminution of wood pellets in power plant and laboratory-scale mills
Department of Energy Engineering, Luleå University of Technology, Luleå 97187, Sweden.
2017 (English)In: Fuel processing technology, ISSN 0378-3820, E-ISSN 1873-7188, Vol. 160, p. 216-227Article in journal (Refereed) Published
Abstract [en]

This study aims to determine the influence of mill type and pellet wood composition on particle size and shape of milled wood. The size and shape characteristics of pellets comminuted using power plant roller mills were compared with those obtained by using laboratory-scale roller- and hammer mills. A 2D dynamic imaging device was used for particle characterization. It was shown that mill type has a significant impact on particle size but an almost negligible effect on the shape of milled wood. Comminution in the pilot plant using a Loesche roller mill requires less energy than using a hammer mill, but generates a larger fraction of coarse particles. The laboratory-scale roller mill provides comparable results with the power plant roller mill with respect to particle size and shape.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 160, p. 216-227
Keywords [en]
Pellets, Hammer mill, Roller mill, Particle size, Shape
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:umu:diva-134515DOI: 10.1016/j.fuproc.2017.02.023OAI: oai:DiVA.org:umu-134515DiVA, id: diva2:1093858
Available from: 2017-05-08 Created: 2017-05-08 Last updated: 2018-06-09Bibliographically approved

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Trubetskaya, Anna

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