| 摘要 |
<p>The invention relates to a household appliance 1 comprising a drying chamber 2 for drying wet articles 3 therein, a process air loop 4 for circulating process air to dry the articles 3 and a heat pump 8, 9, 10, 11, 12. Said heat pump 8, 9, 10, 11, 12 comprises a pumping loop 8 containing a pumping fluid to be circulated through said pumping loop 8, an evaporator heat exchanger 9 for transferring heat from the process air into said pumping fluid by evaporating said pumping fluid, a liquefier heat exchanger 10 for transferring heat from said pumping fluid to the process air by liquefying said pumping fluid, a compressor 11 for compressing the pumping fluid and driving the pumping fluid through said pumping loop 8, and a nozzle 12 for decompressing said pumping fluid. Further, said compressor 11 is configured for cooling by said pumping fluid after being compressed, and said pumping fluid has a critical temperature between 60°C and 100°C, and a nominal heat of vaporization at boiling point of at least 220 kJ/kg. Preferably, the household appliance 1 is a dryer 1 for drying wet laundry 3.</p> |
