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    Author(s): William T. Simpson; C. Arthur Hart
    Date: 2001
    Source: Forest products journal. Vol. 51, no. 11/12 (Nov./Dec. 2001).:p. 56-63 : ill.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (306 KB)

    Description

    Published information on estimated air-drying times of lumber is of limited usefulness because it is restricted to a specific location or to the time of year the lumber is stacked for drying. At best, these estimates give a wide range of possible times over a broad range of possible locations and stacking dates. In this paper, we describe a method for estimating air-drying times for specific locations by optimizing a drying simulation using existing experimental air-drying times for northern red oak, sugar maple, American beech, yellow-poplar, ponderosa pine, and Douglas-fir. The results of the optimization are simulation parameters that make it possible to estimate the air-drying times of these species regardless of when they are stacked, in any location where average tem- perature and relative humidity are known, and for lumber of any thickness dried to any moisture content.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Simpson, William T.; Hart, C. Arthur. 2001. Method for estimating air-drying times of lumber. Forest products journal. Vol. 51, no. 11/12 (Nov./Dec. 2001).:p. 56-63 : ill.

    Keywords

    Lumber, Air drying, Drying schedules, Species differences, Methodology, Simulation models

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