| 摘要 |
A dryer includes a drying chamber for the items to be dried, an inlet air duct, a process air duct, an exhaust air duct, a recirculating air duct, a fan, and a heat pump with an evaporator, a condenser and a programmable controller. The dryer defines a process air path for obtaining and maintaining a predetermined minimum difference &Dgr;Tset between an evaporator entry temperature T2 and a dryer entry temperature T1 as well as a predetermined lower threshold T2set for the evaporator entry temperature.
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