Abstract

The paper deals with an investigation of the influence of the method used to assembly a drying schedule for larch (Larix) timber on kiln performance and quality of drying. Ten drying schedules were analysed (six from literature and four from industry) using a simulation tool, which was experimentally validated for larch. First, the methods were compared using various criteria, namely drying rate, drying cost, energy consumption and quality of drying. Second, a multi-criteria analysis was performed using one-factor multilevel-categoric design. The results of this study showed that the kiln performance and the drying quality are influenced by the method applied to assembly the schedule. Currently, none of the analysed methods can completely fulfill the industrial requirements (short time, low cost and high quality). According to a cluster analysis, the results showed that the analysed methods can be grouped into three clusters based on their similarities regarding the kiln performance and quality of drying.

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