An Optimization Technique to Determine Red Oak Surface and Internal Moisture Transfer Coefficients During Drying

Authors

  • William T. Simpson
  • Jen Y. Liu

Keywords:

Kiln drying, diffusion, modeling

Abstract

Lumber drying involves moisture transfer from the interior of the board to the surface, then from the surface to the surrounding air. These mechanisms can be characterized by internal and surface moisture transfer coefficients. This paper describes a least squares method, used in conjunction with standard mathematics of diffusion analysis, to determine these coefficients, resulting in good agreement between calculated and experimental drying curves.

References

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Published

2007-06-19

Issue

Number 4 / October 1997

Section

Research Contributions

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