| 摘要 |
<p>Disclosed are: a working medium for a heat cycle, which is nonflammable and environmentally friendly, and has an excellent heat cycle property; a rankine cycle system, a heat pump cycle system or a refrigeration cycle system having excellent processing ability and high efficiency. Specifically disclosed are: a working medium for a heat cycle, which comprises a compound represented by the formula (1); and a rankine cycle system, a heat pump cycle system or a refrigeration cycle system utilizing the working medium. C<SUB>n</SUB>F<SUB>2n+1</SUB>-C<SUB>m</SUB>H<SUB>2m+1</SUB> (1) wherein n represents an integer of 2 to 8; and m represents an integer of 0 to 3.</p> |
