Surface mass transfer coefficients for wood

Research output: Contribution to journalArticlepeer-review

Abstract

Experimentally determined mass transfer coefficients for wood surfaces are often much lower than theoretically and experimentally determined coefficients for other surfaces. An investigation of this is made by comparing mass transfer coefficients for water and saturated non-wood surfaces, with coefficients measured for wood surfaces. It is found that measurements on wood surfaces are usually evaluated by assuming that Fick's law describes diffusion in wood. As this is not always true, it is proposed that the mass transfer coefficients measured on wood surfaces are low because the internal mass transfer in wood is not well understood. New measurements are presented which support this conclusion
Original languageEnglish
Pages (from-to)1227-1249
JournalDrying Technology
Volume11
Issue number6
DOIs
Publication statusPublished - 1993

Subject classification (UKÄ)

  • Materials Engineering

Free keywords

  • water vapor
  • surface resistance
  • surface emissivity
  • measurement
  • analysis

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