Measurements of wood pellets self-heating kinetic parameters using isothermal calorimetry

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DOIResolve DOI: http://doi.org/10.1016/j.biombioe.2014.02.022
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TypeArticle
Journal titleBiomass and Bioenergy
ISSN0961-9534
Volume63
Pages19; # of pages: 9
SubjectActivation energy; Calorimeters; Digital storage; Heating; Isotherms; Kinetic parameters; Kinetic theory; Spontaneous combustion; Global kinetic modeling; Heat Release Rate (HRR); Heat release rate measurement; Isothermal calorimeter; Isothermal calorimetry; Kinetic modeling; Storage temperatures; Wood pellet; Pelletizing; activation energy; bioenergy; biomass power; biotechnology; calorimetry; combustion; heat flux; isotherm; numerical model; reaction kinetics; storage; wood
AbstractWood pellets release heat and gases during storage. A TAM air isothermal calorimeter was used to measure the rate of heat release by bulk pellets at temperatures ranging from 30 to 50°C. The results showed that self-heating rate at the tested temperature range strongly depended on the reaction temperature and the age of pellets. Heat release rate increased as the reaction temperature increased but the rate was not sensitive to pellets moisture content. The activation energy of the self-heating reaction increased with the age of pellets. A simple global kinetic model for self-heating was developed from the experimental data. The model can be applied to simulate the self-heating process in pellets storage containers at different storage temperatures and age of stored pellets.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationNational Research Council Canada; Construction
Peer reviewedYes
NPARC number21272753
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Record identifier955e7a40-0860-49cc-a365-e6b906b81700
Record created2014-12-03
Record modified2016-05-09
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