| 摘要 |
<p>The alleviation of load on a device forming a system, the extension of device lifetime, the reduction in electric power consumption and electric power cost, and the prevention of global warming are realized, with a refrigerant use amount and a refrigerant gas pressure greatly reduced, while using an existing facility. As a refrigerant to be used in a refrigeration cycle in a refrigeration circuit including: a compressor; a condenser; an expansion valve; and an evaporator connected to each other, chlorofluorocarbon-free natural refrigerant gas is used.</p> |
