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Memorias de investigación
Artículos en revistas:
Sorption and thermodynamic properties of wood of Pinus canariensis C. Sm. ex DC. buried in volcanic ash during an eruption in Cañada de las Arenas (Gran Canaria, Spain).
Año:2017
Áreas de investigación
  • Investigación forestal
Datos
Descripción
The hygroscopicity and thermodynamic properties of Pinus canariensis wood buried in volcanic ash, dating from 1100 BC, were studied and compared with recently felled juvenile and mature wood of the same species. The sorption isotherms were obtained by the saturated salt method at 35 and 50 °C. The isotherms were fitted using the Guggenheim?Anderson?de Boer model. The thermodynamic parameters were determined following the Clausius?Clapeyron integration method. To understand the behaviour of each type of wood, the chemical composition, infrared spectra and X-ray diffractograms were determined for each sample. The mature wood has a higher sugar content and lower extractive content than the juvenile and the buried wood. For both temperatures, the isotherm of the mature wood is above the isotherm of the juvenile wood and this, in turn, is above the isotherm of the buried wood, primarily influenced by the higher cellulose and hemicellulose contents and lower extractives content in the mature wood, resulting in a higher number of accessible ?OH groups. Degradation of the buried wood due to high temperatures explains why its isotherms are below the isotherms of the recent wood. The energy involved in the desorption process is greater than in adsorption. Similarly, more energy is involved in the mature wood than in the juvenile wood, and the energy involved in the juvenile wood is greater than in the buried wood.
Internacional
Si
JCR del ISI
Si
Título de la revista
Wood Science and Technology
ISSN
1432-5225
Factor de impacto JCR
0
Información de impacto
Volumen
51
DOI
10.1007/s00226-016-0884-3
Número de revista
00
Desde la página
517
Hasta la página
534
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Cristina Simon Garcia (UPM)
  • Autor: Luis Garcia Esteban (UPM)
  • Autor: Paloma de Palacios De Palacios (UPM)
  • Autor: Francisco Garcia Fernandez (UPM)
  • Autor: Alberto Garcia Iruela (UPM)
  • Autor: Raquel Martín-Sampredro (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria)
  • Autor: María Eugenia Eugenio (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Sistemas y Recursos Naturales
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