Bark effect on wood drying dynamics
2016
Aboltins, A., Latvia Univ. of Agriculture, Jelgava (Latvia) | Kic, P., Czech Univ. of Life Sciences, Prague (Czech Republic)
The aim of the paper is to present the bark effect on the fresh wood drying process with natural convection. The experiments were carried out with plum tree wood and bark. There are drying processes of different sizes of wood and bark using natural convection compared. Moisture removal is not significantly affected by the sample size, but it affects the amount of bark on the sample. There were two different sizes of bark samples compared. It was recognised that the bark chips dry approximately twice faster than the bark pieces. Using the experimental data the theoretical drying coefficients were calculated. The results are useful for description and modelling of the drying process with the time depending drying coefficient for wood bark chips and pieces. The calculated theoretical results of moisture removal are compared with the experimental results obtained from the measurements. The obtained results of this research are parameters, which can be used for other research work and for improvement of the whole drying process.
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