NDLI: Method for determining bridging properties of biomass fuels

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Biomass Conversion and Biorefinery : Volume 2, Issue 1, March 2012

Biomass Conversion and Biorefinery : Volume 1

Method for determining bridging properties of biomass fuels—experimental and model approach

Content Provider	Springer Nature Link
Author	Hinterreiter, Stefan Hartmann, Hans Turowski, Peter
Copyright Year	2012
Abstract	A test apparatus enabling to determine the length of a fuel bridge over an opening was developed in order to describe the physical–mechanical fuel property of bridging. Two such testers were applied by six European partners who applied a uniform test procedure on a total of 85 large biomass fuel samples of 2 m$^{3}$ volume. All samples were further analysed for angle of repose, moisture content, bulk density and image analysis parameters (e.g. particle size distribution, particle shape factor and length/diameter ratio). The opening width (i.e. maximum bridge length) of all tested fuels ranged from 0.8 cm (grain kernels) to 99 cm (unchopped grass materials). For the developed test method, the mean coefficient of variation of the replications was between 5.4% (wood pellets) and 20% (sawdust). The also measured angle of repose showed no satisfying correlation to the opening width from the bridging tests. But other influencing parameters for bridging were regarded in a multiple linear regression model. It was shown that for wood samples (chips, hog fuel), the parameters mean particle size, mean particle shape factor and mean length/diameter ratio are highly capable of explaining or predicting any unfavourable bridging phenomena. In this model, there was no significant influence of bulk density in bridging.
Starting Page	109
Ending Page	121
Page Count	13
File Format	PDF
ISSN	21906815
Journal	Biomass Conversion and Biorefinery
Volume Number	2
Issue Number	2
e-ISSN	21906823
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-03-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Angle of repose Bridging test method Image analysis Particle size distribution Physical–mechanical properties Wood chips Renewable and Green Energy Biotechnology
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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