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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 />

Superheated Steam / Vacuum Dry<strong>in</strong>g<br />

Warm humid<br />

air<br />

from stack<br />

Integrated heat-pump as ma<strong>in</strong> heat<strong>in</strong>g system<br />

Evaporator<br />

(cold)<br />

Electricity<br />

Expansion valve<br />

Com<strong>press</strong>or<br />

Condenser<br />

(hot)<br />

Additional<br />

water<br />

circuit<br />

Warm<br />

water<br />

Cold<br />

water<br />

Warm dry<br />

air to the<br />

stack<br />

Mode <strong>of</strong> action <strong>of</strong> heat-pump (dehumidification unit)<br />

(see plants from Eberl <strong>and</strong> Kronseder) Details

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