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A Model For Non-Fickian Moisture Transfer In Wood

Authors
Publisher
Springer Netherlands
Publication Date
Keywords
  • Fickian Models
  • Bound Water
  • Water Vapour
  • Sorption
  • Adsorption
  • Wood

Abstract

A model for non-Fickian moisture transfer in wood is presented. The model considers the transfer of water vapour separate from the transfer of bound water. These two components are linked by an equation describing the sorption on the cell wall level. Hereby, a formulation capable of describing known non-Fickian effects, including the effects of step size, absolute moisture content, and sample length, is achieved. The sorption curves predicted by the model are compared with experimental results and good agreement is found.

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