Study on the evolution of thermal behaviour of dry and wet ageing wood with ageing degrees

Owing to the serious natural ageing phenomenon of ancient wooden buildings, to better explore the effect of drying and wet ageing degree on the exothermic behaviour of wood combustion, firstly, wood treated with different degrees of dry and wet ageings was obtained by artificially accelerating the d...

Full description

Saved in:
Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2024-03, Vol.149 (5), p.2217-2238
Main Authors: Song, Jia-jia, Zhao, Jing-yu, Deng, Jun, Lu, Shi-ping, Hang, Gai, Ming, Han-qi, Zhang, Yan-ni, Shu, Chi-Min
Format: Article
Language:English
Subjects:
Activation energy
Aging
Aging (natural)
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Combustion
Drying
Energy distribution
Exothermic reactions
Heat transmission
Historical buildings
Inorganic Chemistry
Measurement Science and Instrumentation
Oxidation
Physical Chemistry
Polymer Sciences
Thermal analysis
Thermodynamic properties
Thermophysical properties
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Owing to the serious natural ageing phenomenon of ancient wooden buildings, to better explore the effect of drying and wet ageing degree on the exothermic behaviour of wood combustion, firstly, wood treated with different degrees of dry and wet ageings was obtained by artificially accelerating the dry and wet ageing method. The pore characteristics, along with the capacity of the heat transport of wood treated and wood combustion heat flow with different dry and wet ageing degrees, were analysed by scanning electron microscopy, thermophysical property, and thermal analysis test. Finally, according to Friedman’s differential equivalent conversion method, the reaction process of the distribution of apparent activation energy of wood in various exothermic stages was computed and appraised, revealing the mechanism of the effect of the wood treated with dry and wet ageings on thermal reaction process. In the accelerated exothermic stage, the initial dry and wet ageing process (10 to 30 times) led to the opposite change in the trend of the apparent activation energy of wood and the fresh wood as a whole. The effect of the dry and wet ageings on the energy demand of the oxidation reaction at the end of prompt exothermic stage could decrease with the deepening of the ageing degree.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-023-12828-4