Moisture content of wood particles during hot-pressing

Frederick A. Kamke, Michael P Wolcott

Research output: Contribution to conferencePaper

Abstract

A method is presented to calculate the relative vapor pressure of the internal environment of a flakeboard mat during hot-pressing. This technique uses measured temperature and gas pressure data from the mat. A mathematical relation for equilibrium moisture content as a function of temperature and relative vapor pressure is used to determine the transient equilibrium moisture content conditions that exist in the mat. Temperature and moisture contents of the wood component are predicted using a fundamental heat and mass transfer model for wood. Use of this method shows that a significant resistance to convective heat transfer at thje surface of a flake controls the heat and mass transfer between the wood flake and the internal environment. The temperature and moisture content of the wood component is not in equilibrium with the internal mat environment. Several assumptions were required to solve the model presented here. While this may limit the quantitative use of the model, the predicted trends are reasonable and do not conflict with the limited experimental data that are available.

Original languageEnglish (US)
Pages262-263
Number of pages2
StatePublished - Dec 1 1990
EventProceedings of the 24th Washington State University International Particleboard/Composite Materials Symposium - Pullman, WA, USA
Duration: Apr 3 1990Apr 5 1990

Other

OtherProceedings of the 24th Washington State University International Particleboard/Composite Materials Symposium
CityPullman, WA, USA
Period4/3/904/5/90

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Kamke, F. A., & Wolcott, M. P. (1990). Moisture content of wood particles during hot-pressing. 262-263. Paper presented at Proceedings of the 24th Washington State University International Particleboard/Composite Materials Symposium, Pullman, WA, USA, .