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Wood Science and Technology

, Volume 52, Issue 6, pp 1701–1706 | Cite as

Myth versus reality: Do parabolic sorption isotherm models reflect actual wood–water thermodynamics?

  • Samuel L. Zelinka
  • Samuel V. Glass
  • Emil Engelund Thybring
Original
  • 236 Downloads

Abstract

It has been known for over 35 years that commonly used sorption isotherm models fail to correctly predict wood–water properties such as heat of sorption. Despite this, their use to determine thermodynamic quantities and monolayer moisture contents persists and in fact is increasing in frequency. In this paper, we recommend the use of the “ABC isotherm,” which is mathematically equivalent to sorption isotherm models commonly used for wood but has the added benefits of simplicity, avoidance of a conceptual image of water sorption that is contradicted by measurements, and avoidance of any additional step of identifying quantities that are physically incorrect.

Notes

Acknowledgements

The authors thank JF Scott’s paper (2007) playfully criticizing data published on supposedly ferroelectric materials for an inspiration to this paper. SLZ and EET are thankful for the traveling grant for SLZ from “IGN International Academy,” while EET acknowledges funding from the VILLUM FONDEN postdoc program.

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Copyright information

© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2018

Authors and Affiliations

  1. 1.Building and Fire SciencesUS Forest Service, Forest Products LaboratoryMadisonUSA
  2. 2.Department of Geosciences and Natural Resource ManagementUniversity of CopenhagenFrederiksberg CDenmark

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