 |
Free and accessible knowledge |
Journal articles
Kinetic study of forest fuels by TGA: Model free kinetic approach for the prediction of phenomena
Abstract : The kinetics of thermal decomposition of a forest fuel was studied by thermogravimetry. Experiments were monitored under air and non-isothermal conditions from 400 to 900 K. We used a classical modelfree method, the Kissinger-Akahira-Sunose (KAS) method to calculate the activation energy vs. the conversion degree of the reaction on the whole temperature domain. Analyses were performed at 10, 20 and 30 K/min. As expected, the complex structure of lignocellulosic fuels involved several steps with different energies in the degradation processes. The algorithm developed here, allows the calculation and the simulation of the solid temperature at different conversion degree for various heating rates. The good correlation between experiments and simulations validated the proposed algorithm. Then, kinetics parameters were used to perform simulations up to heating rates outside the functioning range of the thermal analyser.
Cited literature [26 references]
https://hal.archives-ouvertes.fr/hal-00547599
Contributor : Valérie Leroy-Cancellieri Connect in order to contact the contributor
Submitted on : Thursday, December 16, 2010 - 5:21:01 PM
Last modification on : Tuesday, October 12, 2021 - 5:20:45 PM
Long-term archiving on: : Thursday, March 17, 2011 - 3:27:20 AM
Contributor : Valérie Leroy-Cancellieri Connect in order to contact the contributor
Submitted on : Thursday, December 16, 2010 - 5:21:01 PM
Last modification on : Tuesday, October 12, 2021 - 5:20:45 PM
Long-term archiving on: : Thursday, March 17, 2011 - 3:27:20 AM
File
thermochimica_2010.pdf
Publisher files allowed on an open archive