Composition containing refrigerant, use of same, freezer having same, and method for operating said freezer
AssigneeDaikin Industries, Ltd.
InventorsMitsushi Itano, Shun Ohkubo, Daisuke Karube
Life of this patent
Estimating the term…
Abstract
An object of the present disclosure is to provide a novel low-GWP mixed refrigerant. To solve this problem, the present disclosure provides a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123), 1,3,3,3-tetrafluoropropene (R1234ze), and difluoromethane (R32).
Claims16
A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123), 1,3,3,3-tetrafluoropropene (R1234ze), and difluoromethane (R32), wherein
- when the mass % of HFO-1132 (E), HFO-1123, R1234ze, and R32 based on their sum in the refrigerant is respectively represented by x, y, z, and a,
- if 0<a≤11.1, coordinates (x,y,z) in a ternary composition diagram in which the sum of HFO-1132 (E), HFO-1123, and R1234ze is (100−a) mass % are within the range of a figure surrounded by straight lines GG′, G′B, BD, DC, and CG that connect the following 5 points:
- point G (0.0314a2−1.8079a+72.0, 100−a−x, 0.0),
- point G′ (0.0314a2−1.8079a+72.0, −0.0199a2+0.0677a+3.8, 100−a−x−y),
- point B (0.0, 0.0057a2−1.4197a+68.462, 100−a−y),
- point D (0.0, 0.0234a2+0.0647a+86.3, 100−a−y), and
- point C (−0.189a2−0.8664a+32.9, 100−a−x, 0.0),
- or on the straight lines GG′, G′B, and DC (excluding point B, point D, point C, and point G);
- if 11.1<a≤16.4, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GG′, G′B, BO, and OG that connect the following 4 points:
- point G (0.015a2−1.4701a+70.266, 100−a−x, 0.0),
- point G′ (−1.0566a+67.528, −0.3962a+6.4981, 100−a−x−y),
- point B (0.0, 0.0057a2−1.4197a+68.462, 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GG′ and G′B (excluding point B, point O, and point G);
- if 16.4<a≤26.6, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IA, AB, BO, and OG that connect the following 5 points:
- point G (0.015a2−1.4701a+70.266, 100−a−x, 0.0),
- point I (0.015a2−1.4701a+70.266, 0.0, 100−a−x),
- point A (0.0076a2−1.7a+76.031, 0.0, 100−a−x),
- point B (0.0, 0.0057a2−1.4197a+68.462, 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GI and AB (excluding point G, point I, point A, and point B);
- if 26.6<a≤43.8, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IA, AB, BO, and OG that connect the following 5 points:
- point G (0.00738a2−1.0762a+65.22, 100−a−x, 0.0),
- point I (0.00738a2−1.0762a+65.22, 0.0, 100−a−x),
- point A (0.00582a2−1.5915a+74.4, 0.0, 100−a−x),
- point B (0.0, 0.00328a2−1.3169a+67.421, 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GI and AB (excluding point G, point I, point A, and point B);
- and
- if 43.8<a≤47.8, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IA, AB, BO, and OG that connect the following 5 points:
- point G (−0.45a+51.91, 100−a−x, 0.0),
- point I (−0.45a+51.91, 0.0, 100−a−x),
- point A (−1.075a+62.985, 0.0, 100−a−x),
- point B (0.0, −1.025a+60.895, 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GI and AB (excluding point G, point I, point A, and point B).
A composition comprising a refrigerant,
- the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123), 1,3,3,3-tetrafluoropropene (R1234ze), and difluoromethane (R32), wherein
- when the mass % of HFO-1132 (E), HFO-1123, R1234ze, and R32 based on their sum in the refrigerant is respectively represented by x, y, z, and a,
- if 0<a≤11.1, coordinates (x,y,z) in a ternary composition diagram in which the sum of HFO-1132 (E), HFO-1123, and R1234ze is (100−a) mass % are within the range of a figure surrounded by straight lines JQ, QN, NM, MK, KB, BD, DC, and CJ that connect the following 8 points:
- point J (100−a−y, 0.0072a2−0.1704a+52.9, 0.0),
- point Q (0.0112a2−1.3048a+62.1, 96.5−a−x, 3.5),
- point N (0.0207a2−1.5817a+65.9, −0.0547a2+1.1392a+21.6, 100−a−x−y),
- point M (0.0278a2−1.7325a+64.5, 80.0−a−x, 20.0),
- point K (0.0421a2−2.2419a+62.5, 100−a−x−z, −0.0132a2+0.768a+25.1),
- point B (0.0, 0.0057a2−1.4197a+68.462, 100−a−y),
- point D (0.0, 0.0234a2+0.0647a+86.3, 100−a−y), and
- point C (−0.189a2−0.8664a+32.9, 100−a−x, 0.0),
- or on the straight lines JQ, QN, NM, MK, and KB (excluding point J and point B);
- if 11.1<a≤26.6, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JQ, QN, NM, MK, KB, BO, and OJ that connect the following 7 points:
- point J (100−a−y, −0.0285a2+0.5371a+49.443, 0.0),
- point Q (0.0166a2−1.382a+62.291, 96.5−a−x, 3.5),
- point N (0.0183a2−1.5044a+65.339, −0.0395a2+1.4643a+16.116, 100−a−x−y),
- point M (0.0145a2−1.4001a+62.448, 80.0−a−x, 20.0),
- point K (0.0184a2−1.7325a+59.763, 100−a−x−z, −0.009a2+0.6996a+25.34),
- point B (0.0, 0.0057a2−1.4197a+68.462, 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JQ, QN, NM, MK, and KB (excluding point J and point B);
- if 26.6<a≤43.8, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JQ, QN, NM, MK, KB, BO, and OJ that connect the following 7 points:
- point J (100−a−y, 0.00542a2−1.3598a+75.92, 0.0),
- point Q (0.0049a2−0.728a+53.204, 96.5−a−x, 3.5),
- point N (0.0075a2−0.971a+58.81, −0.0038a2−0.0303a+30.581, 100−a−x−y),
- point M (0.0019a2−0.7375a+53.782, 80.0−a−x, 20.0),
- point K (0.0086a2−1.2345a+53.442, 100−a−x−z, −0.0045a2+0.4752a+28.157),
- point B (0.0, 0.00328a2−1.3169a+67.421, 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JQ, QN, NM, MK, and KB (excluding point J and point B);
- and
- if 43.8<a≤47.8, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JN, NM, MK, KA, AB, BO, and OJ that connect the following 7 points:
- point J (100−a−y, −0.9a+66.22, 0.0),
- point N (−0.425a+49.315, −0.3a+8.86, 100−a−x−y),
- point M (−0.525a+48.095, 80.0−a−x, 20.0),
- point K (15.9, 0.0, 84.1−a),
- point A (−1.075a+62.985, 0.0, 100−a−x),
- point B (0.0, −1.025a+60.895, 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines NM, MK, KA, and AB (excluding point J and point B).
A composition comprising a refrigerant,
- the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123), 1,3,3,3-tetrafluoropropene (R1234ze), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), wherein
- when the mass % of HFO-1132 (E), HFO-1123, R1234yf, R1234ze, and R32 based on their sum in the refrigerant is respectively x, y, z1, 72, and a, the sum of z1 and z2 is z, z/z is r, and w=−0.00162a2−0.0097a+0.592,
- if 0<a≤11.1, and 0<r≤w, coordinates (x,y,z) in a ternary composition diagram whose vertices are a point of (100−a) mass % of HFO-1132 (E), a point of (100−a) mass % of HFO-1123, and a point of (100−a) mass % of the sum of R1234yf and R1234ze are within the range of a figure surrounded by straight lines GG′r, G′rBr, BrDr, DrC, and CG that connect the following 5 points:
- point G (0.0314a2−1.8079a+72.0, 100−a−x, 0.0),
- point G′r (0.0314a2−1.8079a+72.0, (−0.0708a2+0.9972a−4.8964) r2+(0.0424a2−0.7622a−3.5518) r+(−0.0199a2+0.0677a+3.8), 100−a−x−y),
- point Br (0.0, −r2+(0.004a2−0.1343a−9.1) r+(0.008a2−1.4765a+68.8), 100−a−y),
- point Dr (0.0, (−0.0603a2+0.8857a−2.4) r2+(0.1143a2−0.9267a−3.8) r+(0.0079a2+0.1471a+86.3), 100−a−y), and
- point C (−0.189a2−0.8664a+32.9, 100−a−x, 0.0),
- or on the straight lines GG′r, G′rBr, and DrC (excluding point G, point Br, point Dr, and point C);
- if 0<a≤11.1, and w<r≤1, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IAr, ArBr, BrDr, DrC, and CG that connect the following 6 points:
- point G (0.0314a2−1.8079a+72.0, 100−a−x, 0.0),
- point I (0.0314a2−1.8079a+72.0, 0.0, 100−a−x),
- point Ar ((−0.0031a2+0.0165a−1.6) r2+(0.0095a2−0.2769a−6.0) r+(0.0084a2−1.7237a+76.2), 0.0, 100−a−x),
- point Br (0.0, (−a2) r2+(0.004a2−0.1343a−9.1) r+(0.008a2−1.4765a+68.8), 100−a−y),
- point Dr (0.0, (−0.0603a2+0.8857a−2.4) r2+(0.1143a2−0.9267a−3.8) r+(0.0079a2+0.1471a+86.3), 100−a−y), and
- point C (−0.189a2−0.8664a+32.9, 100−a−x, 0.0),
- or on the straight lines GI, IAr, ArBr, and DrC (excluding point G, point I, point Ar, point Br, point Dr, and point C);
- if 11.1<a≤16.4, and 0<r≤w, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GG′r, G′rBr, BrO, and OG that connect the following 4 points:
- point G (0.015a2−1.4701a+70.266, 100−a−x, 0.0),
- point G′r (0.021a2−0.1227a+4.6878, (4.1824a2−114.54a+753.47) r2+(0.0346a2+0.3301a−14.707)r+(−0.0099a2−0.1227a+4.6878), 100−a−x−y),
- point Br (0.0, (0.0839a2−3.138a+23.492) r2+(−0.0396a2+1.4292a−21.082) r+(0.0057a2+1.4197a+68.462), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GG′r and G′rBr (excluding point G and point Br);
- if 11.1<a≤16.4, and w<r≤1, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IAr, ArBr, BrO, and OG that connect the following 5 points:
- point G (0.015a2−1.4701a+70.266, 100−a−x, 0.0),
- point I (0.015a2−1.4701a+70.266, 0.0, 100−a−x),
- point Ar ((0.1221a2−4.6027a−34.247) r2+(−0.0564a2+2.0217a−23.397) r+(0.0076a2−1.7a+76.031), 0.0, 100−a−x),
- point Br (0.0, (0.0839a2−3.138a+23.492) r2+(−0.0396a2+1.4292a−21.082) r+(0.0057a2−1.4197a+68.462), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GI, IAr, and ArBr (excluding point G, point I, point Ar, and point Br);
- if 16.4<a≤26.6, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IAr, ArBr, BrO, and OG that connect the following 5 points:
- point G (0.015a2−1.4701a+70.266, 100−a−x, 0.0),
- point I (0.015a2−1.4701a+70.266, 0.0, 100−a−x),
- point Ar ((0.1221a2−4.6027a−34.247) r2+(−0.0564a2+2.0217a−23.397) r+(0.0076a2−1.7a+76.031), 0.0, 100−a−x),
- point Br (0.0, (0.0839a2−3.138a+23.492) r2+(−0.0396a2+1.4292a−21.082) r+(0.0057a2−1.4197a+68.462), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GI, IAr, and ArBr (excluding point G, point I, point Ar, and point Br);
- if 26.6<a≤43.8, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IAr, ArBr, BrO, and OG that connect the following 5 points:
- point G (0.00738a2−1.0762a+65.22, 100−a−x, 0.0),
- point I (0.00738a2−1.0762a+65.22, 0.0, 100−a−x),
- point Ar ((−0.009465a2+0.6769a−13.119) r2+(0.01143a2−0.846a+4.9102) r+(0.005842a2−1.5915a+74.4), 0.100−a−x),
- point Br (0.0, (−0.00279a2+0.1483a−2.5871) r2+(0.00277a2−0.1588a−8.822) r+(0.00327a2−1.3169a+67.421), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GI, IAr, and ArBr (excluding point G, point I, point Ar, and point Br);
- and
- if 43.8<a≤47.8, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines GI, IAr, ArBr, BrO, and OG that connect the following 5 points:
- point G (−0.45a+51.91, 100−a−x, 0.0),
- point I (−0.45a+51.91, 0.0, 100−a−x),
- point Ar ((−1.6r2+(0.05a−12.39) r+(−1.075a+62.985), 0.100−a−x),
- point Br (0.0, (3.8a−167.84) r2+(−3.8a+155.94) r+(−1.025a+60.895), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines GI, IAr, and ArBr (excluding point G, point I, point Ar, and point Br).
A composition comprising a refrigerant,
- the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123), 1,3,3,3-tetrafluoropropene (R1234ze), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), wherein
- when the mass % of HFO-1132 (E), HFO-1123, R1234yf, R1234ze, and R32 based on their sum in the refrigerant is respectively x, y, z1, z2, and a, the sum of z1 and z2 is z, z1/z is r, and v=−0.0581a+2.5484,
- if 0<a≤11.1, coordinates (x,y,z) in a ternary composition diagram whose vertices are a point of (100−a) mass % of HFO-1132 (E), a point of (100−a) mass % of HFO-1123, and a point of (100−a) mass % of the sum of R1234yf and R1234ze are within the range of a figure surrounded by straight lines JKr, KrBr, BrDr, DrC, and CJ that connect the following 5 points:
- point J (−0.0072a2−0.8296a+47.1, 100−a−x, 0.0),
- point Kr ((−0.0241a2+0.4296a−2.8) r2+(0.033a2−0.6279a+2.0) r+(0.0421a2−2.2419a+62.5), (0.0142a2−0.3016a+1.4) r2+ (−0.0167a2+0.2395a−7.9) r+(−0.0289a2+0.4739a+12.4), 100−a−x−y),
- point Br (0.0, 12+(0.004a2−0.1343a−9.1) r+(0.008a2−1.4765a+68.8), 100−a−y),
- point Dr (0.0, (−0.0603a2+0.8857a−2.4) r2+(0.1143a2−0.9267a−3.8) r+(0.0079a2+0.1471x+86.3), 100−a−y),
- point C (−0.189a2−0.8664a+32.9, 100−a−x, 0.0),
- or on the straight lines JKr, KrBr, BrDr, and DrC (excluding point J, point Br, point Dr, and point C);
- if 11.1<a≤26.6, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JKr, KrBr, BrO, and OJ that connect the following 4 points:
- point J (0.0285a2−1.5371a+50.557, 100−a−x, 0.0),
- point Kr ((0.0556a2−2.057a+14.984) r2+(−0.0217a2+0.7843a−6.9374) r+(0.0184a2−1.7325a+59.763), (0.0567a2−2.162a+16.817) r2+ (−0.0298a2+1.0456a−15.236) r+(−0.0094a2+0.0329a+14.897), 100−a−x−y),
- point Br (0.0, (0.0839a2−3.138a+23.492) r2+(−0.0396a2+1.4292a−21.082) r+(0.0057a2−1.4197a+68.462), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JKr and KrBr (excluding point J and point Br);
- if 26.6<a≤35.3, and 0<r≤v, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JKr, KrBr, BrO, and OJ that connect the following 4 points:
- point J (−0.00542a2+0.3598a+24.08, 100−a−x, 0.0),
- point Kr ((−0.2299a+5.7149) r2+(0.1379a−5.069) r+(−0.7011x+45.351), (0.069a−2.4345) r2+(−0.1264a−5.1368) r+(−0.4943a+22.247), 100−a−x−y),
- point Br (0.0, (−0.00279a2+0.1483a−2.5871) r2+(0.00277a2−0.1588a−8.822) r+(0.00327a2−1.3169a+67.421), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JKr and KrBr (excluding point J and point Br);
- if 26.6<a≤35.3, and v<r≤1, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JKr, KrAr, ArBr, BrO, and OJ that connect the following 5 points:
- point J (−0.00542a2+0.3598a+24.08, 0.0, 100−a−x),
- point Kr ((−0.3218a+8.1609) r2+(1.4023a−38.701) r+(−1.3103a+61.555), 0.0, 100−a−x),
- point Ar ((−0.00946a2+0.6769a−13.119) r2+(0.01143a2−0.846a+4.9102) r+(0.00584a2−1.5915a+74.4), 0.0, 100−a−x),
- point Br (0.0, (−0.00279a2+0.1483a−2.5871) r2+(0.00277a2−0.1588a−8.822) r+(0.00327a2−1.3169a+67.421), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JKr, KrAr, and ArBr (excluding point J, point Ar, and point Br);
- if 35.3<a≤43.8, and 0<r≤v, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JKr, KrBr, BrO, and OJ that connect the following 4 points:
- point J (−0.00542a2+0.3598a+24.08, 100−a−x, 0.0),
- point Kr ((0.2824a−12.367) r2+(0.0235a−1.0306) r+(−0.5529a+40.119), (1.1294a−49.468) r+(−0.5647a+24.734), 100−a−x−y),
- point Br (0.0, (−0.00279a2+0.1483a−2.5871) r2+(0.00277a2−0.1588a−8.822) r+(0.00327a2−1.3169a+67.421), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JKr and KrBr (excluding point J and point Br);
- if 35.3<a≤43.8, and v<r≤1, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JKr, KrAr, ArBr, BrO, and OJ that connect the following 5 points:
- point J (−0.00542a2+0.3598a+24.08, 100−a−x, 0.0),
- point Kr ((0.2588a−12.336) r2+(−0.5294a+29.488) r+(0.0706a+12.808), 0.0, 100−a−x)),
- point Ar ((−0.00946a2+0.6769a−13.119) r2+(0.01143a2−0.846a+4.9102) r+(0.00584a2−1.5915a+74.4), 0.0, 100−a−x),
- point Br (0.0, (−0.00279a2+0.1483a−2.5871) r2+(0.00277a2−0.1588a−8.822) r+(0.00327a2−1.3169a+67.421), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JKr, KrAr, and ArBr (excluding point J, point Ar, and point Br);
- and
- if 43.8<a≤47.8, coordinates (x,y,z) in the ternary composition diagram are within the range of a figure surrounded by straight lines JKr, KrAr, ArBr, BrO, and OJ that connect the following 5 points:
- point J (−0.1a+33.78, 100−a−x, 0.0),
- point Kr (−r2+(−0.2a+15.06) r+15.9, 0.0, 100−a−x),
- point Ar (−1.6r2+(0.05a−12.39) r+(−1.075a+62.985), 0.0, 100−a−x),
- point Br (0.0, (3.8a−167.84) r2+(−3.8a+155.94) r+(−1.025a+60.895), 100−a−y), and
- point O (0.0, 100−a, 0.0),
- or on the straight lines JKr, KrAr, and ArBr (excluding point J, point Ar, and point Br).
Dependencies are inferred from the claim text.