| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a refrigeration unit capable of highly efficiently executing cooling, heating, dehumidifying and supplying hot water of 70 deg.C or higher while a refrigerant not depleting the ozone layer and having low influence on global warming. SOLUTION: The refrigeration unit 3 comprises a refrigerating cycle constituted by connecting a compressor 4, a radiator 5, a throttling device 6 and an evaporator 7 in a loop, and is provided with a blower 8. A refrigerant having a critical temperature in the vicinity of which or above which the discharge pressure of the compressor 4 resides is employed. A wind circuit 11 is constituted in such a manner that air is circulated to the evaporator 7 and the radiator 5 in this order by the blower 8. The refrigerant and air are made to flow in counterflow in a heat exchanger functioning as the radiator 5. Highly efficient cooling, high temperature hot air heating and high temperature dehumidifying drying can be performed by using the refrigerant not depleting the ozone layer and having low influence on global warming.</p> |
