Developments in vacuum drying and press drying of
Developments in vacuum drying and press drying of
Developments in vacuum drying and press drying of
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Center for<br />
Forest Products<br />
Pr<strong>of</strong>. Dr. Ressel<br />
Introduction<br />
Fundamentals<br />
Plant Facilities<br />
Innovations<br />
Process<br />
Technology<br />
Plant Examples<br />
Brunner<br />
IWT<br />
Mühlböck<br />
Kronseder<br />
Eberl<br />
Opel<br />
HeatWave<br />
Press Dry<strong>in</strong>g<br />
����������� � �� ����<br />
Press Dry<strong>in</strong>g - Process Technology<br />
a r b o r e o<br />
technologies<br />
TECHNICAL FEATURES<br />
- timber stacked crosswise between<br />
hollow, perforated metal<br />
pr<strong>of</strong>iles (<strong>press</strong> plates)<br />
- convective heat transfer to<br />
<strong>press</strong> plates / layers<br />
- air velocity through plates<br />
approx. 5…6 m/s (<strong>in</strong>itiated by<br />
4 fans á 25.000 m³/h)<br />
- conductive heat transfer between<br />
<strong>press</strong> plates <strong>and</strong> timber<br />
- cont<strong>in</strong>uous process control<br />
(temperature probes <strong>in</strong>side wood,<br />
temperature control dry<strong>in</strong>g conditions,<br />
humidity control by dampers<br />
…)
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