Modeling Wood Moisture Sorption Hysteresis using the Independent-Domain Theory

Authors

  • Perry N. Peralta

Keywords:

Modeling, independent-domain theory, sorption, adsorption, desorption, isotherm, hysteresis

Abstract

The mathematical modeling of wood moisture sorption hysteresis provides a means of correlating and interpolating experimental sorption data, which are often limited and are time-consuming to generate. The model may be incorporated in numerical treatments of wood-moisture relations such as wood drying or may provide better insights as to how water is held in wood. This paper introduces the application of the theory of independent domains to sorption hysteresis in yellow poplar. From the experimental sorption boundary curves and a family of primary desorption scanning curves, a grid of values is generated and then used to mathematically obtain several primary adsorption scanning curves, and secondary and tertiary scanning curves. The implication of the theory's assumptions to current understanding of wood-water interaction is briefly discussed.

References

Enderby, J. A. 1955. The domain model of hysteresis. Part 1. Independent domains. Trans. Faraday Soc. 51: 835-848.nEverett, D. H. 1967. Adsorption hysteresis. In E. A. Flood, ed. The solid-gas interface. Vol. 2 Marcel Dekker, New York, NY.nEverett, D. H. 1954. A general approach to hysteresis. Part 3. A formal treatment of the independent domain model of hysteresis. Trans. Faraday Soc. 50:1077-1096.nEverett, D. H. 1955. A general approach to hysteresis. Part 4. An alternative formulation of the domain model. Trans. Faraday Soc. 51:1551-1557.nEverett, D. H., and F. W. Smith. 1954. A general approach to hysteresis. Part 2. Development of the domain theory. Trans. Faraday Soc. 50:187-197.nEverett, D. H., and W. I. Whitton. 1952. A general approach to hysteresis. Trans. Faraday Soc. 48:749-757.nPeralta, P. N. 1995. Sorption of moisture by wood within a limited range of relative humidities. Wood Fiber Sci. 27(1): 13-21.nSkaar. C. 1979. Moisture sorption hysteresis in wood. In Proceedings. Wood Moisture Content—Temperature and Humidity Relationships Symposium, Virginia Polytechnic Institute and State University, Blacksburg, VA.n

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Published

2007-06-19

Issue

Number 3 / July 1995

Section

Research Contributions

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