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Evaluation of “three-variable” models for the prediction of equilibrium moisture content in wood

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Summary

Four sorption isotherm models that express moisture content as a function of both relative humidity and temperature were evaluated by fitting them to a set of sorption data between 21.1 and 71.1°C, with the help of a nonlinear curvefitting program. All of them predicted the sigmoid shape of the sorption isotherms and the shift towards the x-axis as the temperature increased. The calculated root mean square error was used as an indication of the goodness of the fit.

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References

  • Anderson, N. T.; McCarthy, J. L. 1963: Two-parameter isotherm equation for fiber water systems. Ind. Eng. Chem. Process Des. Develop. 2: 103–105

    Google Scholar 

  • Anonymous 1927: International Critical Tables, Vol. II, pp. 321–325, 1st Ed. New York: McGraw-Hill Book Co.

  • Bradley, R. S. 1936: Polymolecular adsorbed films. Part II. The general theory of the condensation of vapors on finely divided solids. J. Chem. Soc. 16: 1799–1804

    Google Scholar 

  • Chung, D. S.; Pfost, H. B. 1967: Adsorption and desorption of water vapor by cereal grains and their products. Part II: Development of the general isotherm equation. Trans. ASAE. 10: 552–555

    Google Scholar 

  • Day, D. L.; Nelson, G. L. 1965: Desorption isotherms for wheat. Trans. ASAE. 8: 293–297

    Google Scholar 

  • Henderson, S. M. 1952: A basic concept of equilibrium moisture. Agr. Eng. 33: 29–33

    Google Scholar 

  • Moore, C. 1984: UBC CURVE. Curve fitting routines. Computing Center Technical note TN 174. University of British Columbia, Vancouver, B.C.

    Google Scholar 

  • Siau, J. F. 1984: Transport processes in wood. Heidelberg: Springer, 245 pp.

    Google Scholar 

  • Simpson, W. 1971: Equilibrium moisture content prediction of wood. For. Prod. J. 21 (5): 48–49

    Google Scholar 

  • Simpson, W. 1973: Predicting equilibrium moisture content of wood by mathematical models. Wood Fiber. 5: 41–49

    Google Scholar 

  • Simpson, W. 1980: Sorption theories applied to wood. Wood Fiber. 12: 183–195

    Google Scholar 

  • Skaar, C. 1972: Water in wood. Syracuse: Syracuse University Press, 218 pp. U.S. Department of Agriculture 1955: Wood handbook. Agric. handbook 72; 528 pp.

    Google Scholar 

  • Van der Waal. 1894: Cited in: Adam, N. K.: Physics and chemistry of surfaces. 2nd Ed. Oxford 1938: Oxford Press, 166 pp.

  • Venkateswaran, A. 1970: Sorption of aqueous and nonaqueous media by wood and cellulose. Chem. Rev. 70: 619–637

    Google Scholar 

  • Zuritz, C.; Singh, R. P.; Moini, S. M.; Henderson, S. M. 1979: Desorption isotherms of rough rice from 10°C to 40°C. Trans. ASAE. 22: 433–440

    Google Scholar 

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Authors and Affiliations

  1. Vancouver, Canada

    St. Avramidis (Asst. Prof. of Wood Physics)

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  1. St. Avramidis
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The author would like to thank Dr. John F. Siau, Professor Emeritus, State University of New York, College of Environmental Science and Forestry, for reviewing this manuscript

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Avramidis, S. Evaluation of “three-variable” models for the prediction of equilibrium moisture content in wood. Wood Sci. Technol. 23, 251–257 (1989). https://doi.org/10.1007/BF00367738

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  • DOI: https://doi.org/10.1007/BF00367738

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