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Thermal conductivity of wood: effect of fatigue treatment

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Abstract

The effect of fatigue treatment on the thermal conductivity of wood was studied. Fresh Norway spruce samples both with and without fatigue were analyzed in a temperature rise experiment by means of an infrared camera. The experimental temperature profiles were compared to finite-element simulations of heat conduction. The temporal features of temperature profiles indicate an increase in the conductivity of fatigued wood, which points to changes in the cellular structure of wood. The importance of fatigue for thermal conductivity and consequently for mechanical pulp-making is discussed.

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Acknowledgments

The program of the Centres of Excellence of the Academy of Finland is thanked for financial support. We also thank the Academy of Finland for funding under the project 138623. Mr. Esa Nenonen is acknowledged for the hot plate apparatus.

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Authors and Affiliations

  1. Department of Applied Physics, COMP Center of Excellence, Aalto University, Espoo, Finland

    A. Mauranen, M. Ovaska, J. Koivisto & M. Alava

  2. A Fredrikson Research & Consulting Ltd, Jyväskylä, Finland

    L. I. Salminen

Authors
  1. A. Mauranen
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  2. M. Ovaska
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  3. J. Koivisto
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  4. L. I. Salminen
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  5. M. Alava
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Correspondence to M. Ovaska.

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Mauranen, A., Ovaska, M., Koivisto, J. et al. Thermal conductivity of wood: effect of fatigue treatment. Wood Sci Technol 49, 359–370 (2015). https://doi.org/10.1007/s00226-015-0705-0

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  • DOI: https://doi.org/10.1007/s00226-015-0705-0

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