State of the art in high temperature drying and vacuum drying
The most usual method of drying timber in Scandinavia is convection kiln drying at temperatures around 70 oC. The research around wood drying took off in Sweden during the 80’s and 90’s, causing a substantial development in techniques and infrastructure. In that context, high temperature drying never did turn into a generally extended technique.
This method makes use of drying media with dry bulb temperatures above 100 oC, thus evaporating water through a different process than conventional wood drying. There are examples of research on the field and some trials for industrial implementations have been done in the past. This project aims to collect all the available information regarding both research and industrial applications, with the vision of turning high temperature drying into a relevant technique once again, now that the discussion on energy consumption has been picked up. In connection to high temperature drying, vacuum drying will also be explored in this project because of the fundamental link between the two techniques: vacuum drying also reaches the boiling point of water but by lowering the pressure in the drying rather than raising the temperature.
Project Information
Topic: Drying of sawn timber
Time Project: May 2021 - December 2021
Updated: