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      Thermal degradation of ligno-cellulosic fuels: DSC and TGA studies

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          Abstract

          The scope of this work was to show the utility of thermal analysis and calorimetric experiments to study the thermal oxidative degradation of Mediterranean scrubs. We investigated the thermal degradation of four species; DSC and TGA were used under air sweeping to record oxidative reactions in dynamic conditions. Heat released and mass loss are important data to be measured for wildland fires modelling purpose and fire hazard studies on ligno-cellulosic fuels. Around 638 and 778 K, two dominating and overlapped exothermic peaks were recorded in DSC and individualized using a experimental and numerical separation. This stage allowed obtaining the enthalpy variation of each exothermic phenomenon. As an application, we propose to classify the fuels according to the heat released and the rate constant of each reaction. TGA experiments showed under air two successive mass loss around 638 and 778 K. Both techniques are useful in order to measure ignitability, combustibility and sustainability of forest fuels.

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          Author and article information

          Journal
          17 November 2008
          Article
          10.1016/j.tca.2006.09.017
          0811.2742
          7098dd11-ff5b-46f6-8ed3-679a4545715e

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          History
          Custom metadata
          Thermochimica Acta 451 (2006) 131-138
          physics.chem-ph
          ccsd hal-00339068

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