Smouldering of pine wood: Kinetics and reaction heats |
| |
| Authors: | Andrés Anca-Couce Nico Zobel Anka Berger Frank Behrendt |
| |
| Affiliation: | 1. Institute of Thermal Engineering, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China;2. Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale, Beijing 100044, China;3. Guodian Science and Technology Research Institute, Nanjing 210033, China;1. Department of Civil and Environmental Engineering, The University of Western Ontario, Spencer Engineering Building, Rm. 3029, London, Ontario N6A 5B9, Canada;2. A. James Clark School of Engineering, The University of Maryland, College Park, MD 20742, USA |
| |
| Abstract: | A kinetic model of smouldering of pine wood is determined by thermo-gravimetric analysis (TGA), describing the reactions of wood pyrolysis, wood oxidation and char oxidation. Thermo-gravimetric experiments were conducted with constant heating rates ranging from 2.5 to 10 K/min in atmospheres of pure nitrogen and mixtures of nitrogen and oxygen (with 20.5%, 8.2% and 4.3% O2). At first wood pyrolysis and char oxidation experiments are carried out in an independent way. Then smouldering experiments are conducted, which combine the two previous reactions with wood oxidation. Finally, the heats of the reactions are determined by differential scanning calorimetry (DSC). The results are discussed, compared with the literature and the derived kinetic model is presented, which includes five components: three pseudo-components of wood – representing roughly cellulose, hemi-cellulose and lignin – as well as char and ashes. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
