Appliance for drying laundry

摘要

An appliance for drying laundry (100), comprising a drying-air moisture-condensing system comprising a heat pump system (215,220,225) with a first heat exchanger (215) for cooling the drying air and cause condensation of the moisture contained therein, and a second heat exchanger (220) for heating the de-moisturized drying air, and a variable-output compressor (210), and at least one Joule-effect heater (255) located downstream the heat pump heat exchangers for boosting the heating of the drying air. The appliance is adapted to perform at least one laundry drying cycle in: at least a first drying mode, wherein the Joule-effect heater is kept de-energized and the compressor is driven to a first compressor mode having a compressor power consumption course and/or a compressor rotational speed course and/or a frequency course of the supply current/voltage of the compressor motor, and at least a second drying mode, wherein the Joule-effect heater is kept energized for at least an initial portion of the drying cycle and thereafter it is kept de-energized, and the compressor is driven to a second compressor mode, the second compressor mode comprising a compressor power consumption course and/or a compressor rotational speed course and/or a frequency course of the supply current/voltage of the compressor motor, wherein for at least a portion of the drying cycle after the electric heater has been de-energized, a compressor power consumption and/or a compressor rotational speed and/or a frequency of the supply current/voltage of the compressor of the second compressor mode is/are higher than the one/s of the first compressor mode.