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Assessment of the Self-heating Potential of Wood Pellets
SP Brandteknik.
Mälardalen University, School of Business, Society and Engineering. SP Brandteknik. (MERO)ORCID iD: 0000-0001-6758-6067
SP Brandteknik.
SP Brandteknik.
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2012 (English)Conference paper (Other academic)
Abstract [en]

The use of biomass pellets is increasing. As a consequence, large indoor storage facilities are needed along the transportation chain. The increased production volumes, transportation, handling and storage of pellets result in increased risks. A number of fire incidents due to spontaneous ignition in wood pellets have been reported. Increased efforts concerning safety and quality assurance are, therefore, important. The aim of the present work is to provide methods for estimating risks for self-heating from pellets stored in bulk quantities. The experimental work ranges from small-scale characterizations to medium-scale storage tests and includes several different types of pellets. One aim has been to develop small scale screening methods to assess the propensity for self-heating, thereby trying to define the specific type of “activity” occurring in the pellets as well as characterising it.

 

Isothermal calorimetry (micro calorimeter) has been used as small scale screening test method and the results has then been validated with crossing point tests and in medium scale tests (1 m3). Thirteen samples from different types of pellets have been ranked relative to each other in micro calorimeter tests and two pellet types; one “reactive” and one “less reactive” were also tested for validation in crossing point and medium scale. The results clearly reveal that different activity levels of the pellets can be measured using small scale screening methods.

Place, publisher, year, edition, pages
Kalmar, 2012.
National Category
Other Engineering and Technologies
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-23923OAI: oai:DiVA.org:mdh-23923DiVA: diva2:682069
Conference
Linnaeus ECO-TECH 2012, Kalmar, Sweden, 11 Nov. 2012
Available from: 2013-12-22 Created: 2013-12-22 Last updated: 2016-01-11Bibliographically approved

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