Coolant-containing composition, use for same, refrigerator having same, and method for operating refrigerator
AssigneeDaikin Industries, Ltd.
InventorsMitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI
Life of this patent
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Abstract
Provided is a mixed refrigerant having two types of performance, i.e., a coefficient of performance that is equivalent to that of R410A and a sufficiently low GWP. Provided as a means for a solution is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32) at specific concentrations.
Claims9
A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32), wherein
- when the mass % of HFO-1132(E), HFO-1123, and R32 based on their sum in the refrigerant is respectively represented by x, y, and z, coordinates (x, y, z) in a ternary composition diagram in which the sum of HFO-1132(E), HFO-1123, and R32 is 100 mass % are within the range of a FIGURE surrounded by line segments OC′, C′D′, D′E′, E′A′, and A′O that connect the following 5 points:
- point O (100.0, 0.0, 0.0),
- point C′(56.7, 43.3, 0.0),
- point D′(52.2, 38.3, 9.5),
- point E′ (41.8, 39.8, 18.4), and
- point A′ (81.6, 0.0, 18.4),
- or on the line segments C′D′, D′E′, and E′A′ (excluding the points C′ and A′);
- the line segment C′D′ is represented by coordinates (−0.0297z2−0.1915z+56.7, 0.0297z2−0.8085z+43.3, z),
- the line segment D′E′ is represented by coordinates (−0.0535z2+0.3229z+53.957, 0.0535z2−1.3229z+46.043, z), and
- the line segments OC′, E′A′, and A′O are straight lines.
A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32), wherein
- when the mass % of HFO-1132(E), HFO-1123, and R32 based on their sum in the refrigerant is respectively represented by x, y, and z, coordinates (x, y, z) in a ternary composition diagram in which the sum of HFO-1132(E), HFO-1123, and R32 is 100 mass % are within the range of a FIGURE surrounded by line segments OC, CD, DE, EA′, and A′O that connect the following 5 points:
- point O (100.0, 0.0, 0.0),
- point C (77.7, 22.3, 0.0),
- point D (76.3, 14.2, 9.5),
- point E (72.2, 9.4, 18.4), and
- point A′ (81.6, 0.0, 18.4),
- or on the line segments CD, DE, and EA′ (excluding the points C and A′);
- the line segment CDE is represented by coordinates (−0.017z2+0.0148z+77.684, 0.017z2−1.0148z+22.316, z), and
- the line segments OC, EA′, and A′O are straight lines.
A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32), wherein
- when the mass % of HFO-1132(E), HFO-1123, and R32 based on their sum in the refrigerant is respectively represented by x, y, and z, coordinates (x, y, z) in a ternary composition diagram in which the sum of HFO-1132(E), HFO-1123, and R32 is 100 mass % are within the range of a FIGURE surrounded by line segments OC′, C′D′, D′A, and AO that connect the following 4 points:
- point O (100.0, 0.0, 0.0),
- point C′(56.7, 43.3, 0.0),
- point D′ (52.2, 38.3, 9.5), and
- point A (90.5, 0.0, 9.5),
- or on the line segments C′D′ and D′A (excluding the points C′ and A);
- the line segment C′D′ is represented by coordinates (−0.0297z2−0.1915z+56.7, 0.0297z2−0.8085z+43.3, z), and
- the line segments OC′, D′A, and AO are straight lines.
A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and difluoromethane (R32), wherein
- when the mass % of HFO-1132(E), HFO-1123, and R32 based on their sum in the refrigerant is respectively represented by x, y, and z, coordinates (x, y, z) in a ternary composition diagram in which the sum of HFO-1132(E), HFO-1123, and R32 is 100 mass % are within the range of a FIGURE surrounded by line segments OC, CD, DA, and AO that connect the following 4 points:
- point O (100.0, 0.0, 0.0),
- point C (77.7, 22.3, 0.0),
- point D (76.3, 14.2, 9.5), and
- point A (90.5, 0.0, 9.5),
- or on the line segments CD and DA (excluding the points C and A);
- the line segment CD is represented by coordinates (−0.017z2+0.0148z+77.684, 0.017z2−1.0148z+22.316, z), and
- the line segments OC, DA, and AO are straight lines.
Dependencies are inferred from the claim text.