Effects of saturated vapor pre-steaming on drying strain in asian white birch: Experimentation and modelling

  • Zongying Fu
  • Stavros Avramidis
  • Jingyao Zhao
  • Yingchun Cai
  • Yongdong Zhou
Keywords: Artificial neural network, Betula platyphylla, mechano-sorptive creep, restrained shrinkage strain, white birch discs

Abstract

The effect of low pressure saturated vapor pre-steaming on restrained shrinkage strain, mechano-sorptive creep and the distribution of moisture content was investigated during conventional drying of wood discs. Mechano-sorptive creep was furthermore modelled by artificial neural network theory with five inputs, i.e., pre-steaming and drying temperatures, wood moisture content, relative humidity and distance from the pith. Results revealed that, pre-steaming partly reduced the variation of moisture content distribution along radial direction, increased restrained shrinkage strain in heartwood and decreased in sapwood and slightly decreased the mechano-sorptive creep. The neural network model provided reasonable prediction results, namely, the coefficient of determination for training, validation and test sets greater than 0.95.

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Published
2019-01-01
How to Cite
Fu, Z., Avramidis, S., Zhao, J., Cai, Y., & Zhou, Y. (2019). Effects of saturated vapor pre-steaming on drying strain in asian white birch: Experimentation and modelling. Maderas-Cienc Tecnol, 21(1), 77-88. Retrieved from http://revistas.ubiobio.cl/index.php/MCT/article/view/3325
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Article