| 摘要 |
<p>In a refrigeration apparatus (20), refrigerant mixture in which the proportion of C 3 H m F n refrigerant represented by Molecular Formula 1: C 3 H m F n (note that "m" and "n" are integers equal to or greater than 1 and equal to or less than 5, and a relationship represented by an expression m + n = 6 is satisfied) and having a single double bond in a molecular structure is equal to or greater than 70% by mass and equal to or less than 94% by mass, and the proportion of HFC refrigerant is equal to or greater than 6% by mass and equal to or less than 30% by mass; refrigerant mixture containing the C 3 H m F n refrigerant and particular refrigerant such as hydrocarbons; or refrigerant mixture containing 2, 3, 3, 3-tetrafluoro-1-propene and carbon dioxide is used.</p> |
