Air conditioning apparatus
An air conditioning apparatus 1 includes a compressor ( 321 ), an indoor heat exchanger ( 242 ) that is a use-side heat exchanger that exchanges heat with first air (F 1 ), an outdoor heat exchanger ( 323 ) that is a heat-source-side heat exchanger that exchanges heat with second air, a refrigerant, a first duct ( 209 ), and a casing ( 230 ). The refrigerant contains at least 1,2-difluoroethylene, and circulates in the compressor ( 321 ), the indoor heat exchanger ( 242 ), and the outdoor heat exchanger ( 323 ) to repeat a refrigeration cycle. The first duct ( 209 ) supplies the first air (F 1 ) to a plurality of rooms in an interior. The casing ( 230 ) includes a use-side space (SP 2 ) that is connected to the first duct ( 209 ) and that accommodates the indoor heat exchanger ( 242 ). The casing ( 230 ) is configured to allow the first air (F 1 ) after heat exchange with the refrigerant at the indoor heat exchanger ( 242 ) to be sent out to the first duct ( 209 ).
1. An air conditioning apparatus comprising:
a compressor;
a use-side heat exchanger that exchanges heat with first air;
a heat-source-side heat exchanger that exchanges heat with second air;
a refrigerant that circulates in the compressor, the use-side heat exchanger, and the heat-source-side heat exchanger to repeat a refrigeration cycle;
a first duct that supplies the first air to a plurality of rooms in an interior; and
a casing that includes a use-side space that is connected to the first duct and that accommodates the use-side heat exchanger, the casing being configured to allow the first air after heat exchange with the refrigerant at the use-side heat exchanger to be sent out to the first duct,
wherein the refrigerant comprises trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and
wherein
when the mass % of HFO-1132(E), HFO-1123, and R1234yf 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 R1234yf is 100 mass % are within the range of a figure surrounded by line segments AA′, A′B, BD, DC′, C′C, CO, and OA that connect the following 7 points:
point A (68.6, 0.0, 31.4),
point A′ (30.6, 30.0, 39.4),
point B (0.0, 58.7, 41.3),
point D (0.0, 80.4, 19.6),
point C′ (19.5, 70.5, 10.0),
point C (32.9, 67.1, 0.0), and
point O (100.0, 0.0, 0.0),
or on the above line segments (excluding the points on the line segments BD, CO, and OA);
the line segment AA′ is represented by coordinates (x, 0.0016x 2 −0.9473x+57.497, −0.0016x 2 −0.0527x+42.503),
the line segment A′B is represented by coordinates (x, 0.0029x 2 −1.0268x+58.7, −0.0029x 2 +0.0268x+41.3),
the line segment DC′ is represented by coordinates (x, 0.0082x 2 −0.6671x+80.4, −0.0082x 2 −0.3329x+19.6),
the line segment C′C is represented by coordinates (x, 0.0067x 2 −0.6034x+79.729, −0.0067x 2 −0.3966x+20.271), and
the line segments BD, CO, and OA are straight lines.
2. The air conditioning apparatus according to claim 1 , comprising:
a second duct that introduces the first air from the interior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the interior to the use-side heat exchanger with the casing connected to the second duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
3. The air conditioning apparatus according to claim 1 , comprising:
a third duct that introduces the first air from an exterior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the exterior to the use-side heat exchanger with the casing connected to the third duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
4. The air conditioning apparatus according to claim 1 , comprising:
a second duct that is connected to the casing and that supplies the first air introduced from the interior to the use-side space,
wherein the casing is provided with a partition plate that partitions the casing ( 730 ) into a heat-source-side space through which the second air introduced from an exterior passes and the use-side space to prevent circulation of air in the heat-source-side space and the use-side space, and
wherein the heat-source-side heat exchanger is disposed in the heat-source-side space.
5. An air conditioning apparatus comprising:
a compressor;
a use-side heat exchanger that exchanges heat with first air;
a heat-source-side heat exchanger that exchanges heat with second air;
a refrigerant that circulates in the compressor, the use-side heat exchanger, and the heat-source-side heat exchanger to repeat a refrigeration cycle;
a first duct that supplies the first air to a plurality of rooms in an interior; and
a casing that includes a use-side space that is connected to the first duct and that accommodates the use-side heat exchanger, the casing being configured to allow the first air after heat exchange with the refrigerant at the use-side heat exchanger to be sent out to the first duct,
wherein the refrigerant comprises trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and
wherein
when the mass % of HFO-1132(E), R32, and R1234yf 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), R32, and R1234yf is 100 mass % are within the range of a figure surrounded by line segments IJ, JN, NE, and EI that connect the following 4 points:
point I (72.0, 0.0, 28.0),
point J (48.5, 18.3, 33.2),
point N (27.7, 18.2, 54.1), and
point E (58.3, 0.0, 41.7),
or on these line segments (excluding the points on the line segment EI;
the line segment IJ is represented by coordinates (0.0236y 2 −1.7616y+72.0, y, −0.0236y 2 +0.7616y+28.0);
the line segment NE is represented by coordinates (0.012y 2 −1.9003y+58.3, y, −0.012y 2 +0.9003y+41.7); and
the line segments JN and EI are straight lines.
6. The air conditioning apparatus according to claim 5 , comprising:
a second duct that introduces the first air from the interior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the interior to the use-side heat exchanger with the casing connected to the second duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
7. The air conditioning apparatus according to claim 5 , comprising:
a third duct that introduces the first air from an exterior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the exterior to the use-side heat exchanger with the casing connected to the third duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
8. The air conditioning apparatus according to claim 5 , comprising:
a second duct that is connected to the casing and that supplies the first air introduced from the interior to the use-side space,
wherein the casing is provided with a partition plate that partitions the casing ( 730 ) into a heat-source-side space through which the second air introduced from an exterior passes and the use-side space to prevent circulation of air in the heat-source-side space and the use-side space, and
wherein the heat-source-side heat exchanger is disposed in the heat-source-side space.
9. An air conditioning apparatus comprising:
a compressor;
a use-side heat exchanger that exchanges heat with first air;
a heat-source-side heat exchanger that exchanges heat with second air;
a refrigerant that circulates in the compressor, the use-side heat exchanger, and the heat-source-side heat exchanger to repeat a refrigeration cycle;
a first duct that supplies the first air to a plurality of rooms in an interior; and
a casing that includes a use-side space that is connected to the first duct and that accommodates the use-side heat exchanger, the casing being configured to allow the first air after heat exchange with the refrigerant at the use-side heat exchanger to be sent out to the first duct,
wherein the refrigerant comprises trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and
wherein
when the mass % of HFO-1132(E), R32, and R1234yf 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), R32, and R1234yf is 100 mass % are within the range of a figure surrounded by line segments MM′, M′N, NV, VG, and GM that connect the following 5 points:
point M (52.6, 0.0, 47.4),
point M′(39.2, 5.0, 55.8),
point N (27.7, 18.2, 54.1),
point V (11.0, 18.1, 70.9), and
point G (39.6, 0.0, 60.4),
or on these line segments (excluding the points on the line segment GM);
the line segment MM′ is represented by coordinates (0.132y 2 −3.34y+52.6, y, −0.132y 2 +2.34y+47.4);
the line segment M′N is represented by coordinates (0.0596y 2 −2.2541y+48.98, y, −0.0596y 2 +1.2541y+51.02);
the line segment VG is represented by coordinates (0.0123y 2 −1.8033y+39.6, y, −0.0123y 2 +0.8033y+60.4); and
the line segments NV and GM are straight lines.
10. The air conditioning apparatus according to claim 9 , comprising:
a second duct that introduces the first air from the interior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the interior to the use-side heat exchanger with the casing connected to the second duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
11. The air conditioning apparatus according to claim 9 , comprising:
a third duct that introduces the first air from an exterior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the exterior to the use-side heat exchanger with the casing connected to the third duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
12. The air conditioning apparatus according to claim 9 , comprising:
a second duct that is connected to the casing and that supplies the first air introduced from the interior to the use-side space,
wherein the casing is provided with a partition plate that partitions the casing ( 730 ) into a heat-source-side space through which the second air introduced from an exterior passes and the use-side space to prevent circulation of air in the heat-source-side space and the use-side space, and
wherein the heat-source-side heat exchanger is disposed in the heat-source-side space.
13. An air conditioning apparatus comprising:
a compressor;
a use-side heat exchanger that exchanges heat with first air;
a heat-source-side heat exchanger that exchanges heat with second air;
a refrigerant that circulates in the compressor, the use-side heat exchanger, and the heat-source-side heat exchanger to repeat a refrigeration cycle;
a first duct that supplies the first air to a plurality of rooms in an interior; and
a casing that includes a use-side space that is connected to the first duct and that accommodates the use-side heat exchanger, the casing being configured to allow the first air after heat exchange with the refrigerant at the use-side heat exchanger to be sent out to the first duct,
wherein the refrigerant comprises trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and
wherein
when the mass % of HFO-1132(E), R32, and R1234yf 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), R32, and R1234yf is 100 mass % are within the range of a figure surrounded by line segments ON, NU, and UO that connect the following 3 points:
point O (22.6, 36.8, 40.6),
point N (27.7, 18.2, 54.1), and
point U (3.9, 36.7, 59.4),
or on these line segments;
the line segment ON is represented by coordinates (0.0072y 2 −0.6701y+37.512, y, −0.0072y 2 −0.3299y+62.488);
the line segment NU is represented by coordinates (0.0083y 2 −1.7403y+56.635, y, −0.0083y 2 +0.7403y+43.365); and
the line segment UO is a straight line.
14. The air conditioning apparatus according to claim 13 , comprising:
a second duct that introduces the first air from the interior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the interior to the use-side heat exchanger with the casing connected to the second duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
15. The air conditioning apparatus according to claim 13 , comprising:
a third duct that introduces the first air from an exterior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the exterior to the use-side heat exchanger with the casing connected to the third duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
16. The air conditioning apparatus according to claim 13 , comprising:
a second duct that is connected to the casing and that supplies the first air introduced from the interior to the use-side space,
wherein the casing is provided with a partition plate that partitions the casing ( 730 ) into a heat-source-side space through which the second air introduced from an exterior passes and the use-side space to prevent circulation of air in the heat-source-side space and the use-side space, and
wherein the heat-source-side heat exchanger is disposed in the heat-source-side space.
17. An air conditioning apparatus comprising:
a compressor;
a use-side heat exchanger that exchanges heat with first air;
a heat-source-side heat exchanger that exchanges heat with second air;
a refrigerant that circulates in the compressor, the use-side heat exchanger, and the heat-source-side heat exchanger to repeat a refrigeration cycle;
a first duct that supplies the first air to a plurality of rooms in an interior; and
a casing that includes a use-side space that is connected to the first duct and that accommodates the use-side heat exchanger, the casing being configured to allow the first air after heat exchange with the refrigerant at the use-side heat exchanger to be sent out to the first duct,
wherein the refrigerant comprises trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and
wherein
when the mass % of HFO-1132(E), R32, and R1234yf 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), R32, and R1234yf is 100 mass % are within the range of a figure surrounded by line segments QR, RT, TL, LK, and KQ that connect the following 5 points:
point Q (44.6, 23.0, 32.4),
point R (25.5, 36.8, 37.7),
point T (8.6, 51.6, 39.8),
point L (28.9, 51.7, 19.4), and
point K (35.6, 36.8, 27.6),
or on these line segments;
the line segment QR is represented by coordinates (0.0099y 2 −1.975y+84.765, y, −0.0099y 2 +0.975y+15.235);
the line segment RT is represented by coordinates (0.0082y 2 −1.8683y+83.126, y, −0.0082y 2 +0.8683y+16.874);
the line segment LK is represented by coordinates (0.0049y 2 −0.8842y+61.488, y, −0.0049y 2 −0.1158y+38.512);
the line segment KQ is represented by coordinates (0.0095y 2 −1.2222y+67.676, y, −0.0095y 2 +0.2222y+32.324); and
the line segment TL is a straight line.
18. The air conditioning apparatus according to claim 17 , comprising:
a second duct that introduces the first air from the interior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the interior to the use-side heat exchanger with the casing connected to the second duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
19. The air conditioning apparatus according to claim 17 , comprising:
a third duct that introduces the first air from an exterior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the exterior to the use-side heat exchanger with the casing connected to the third duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
20. The air conditioning apparatus according to claim 17 , comprising:
a second duct that is connected to the casing and that supplies the first air introduced from the interior to the use-side space,
wherein the casing is provided with a partition plate that partitions the casing ( 730 ) into a heat-source-side space through which the second air introduced from an exterior passes and the use-side space to prevent circulation of air in the heat-source-side space and the use-side space, and
wherein the heat-source-side heat exchanger is disposed in the heat-source-side space.
21. An air conditioning apparatus comprising:
a compressor;
a use-side heat exchanger that exchanges heat with first air;
a heat-source-side heat exchanger that exchanges heat with second air;
a refrigerant that circulates in the compressor, the use-side heat exchanger, and the heat-source-side heat exchanger to repeat a refrigeration cycle;
a first duct that supplies the first air to a plurality of rooms in an interior; and
a casing that includes a use-side space that is connected to the first duct and that accommodates the use-side heat exchanger, the casing being configured to allow the first air after heat exchange with the refrigerant at the use-side heat exchanger to be sent out to the first duct,
wherein the refrigerant comprises trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-1-propene (R1234yf), and
wherein
when the mass % of HFO-1132(E), R32, and R1234yf 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), R32, and R1234yf is 100 mass % are within the range of a figure surrounded by line segments PS, ST, and TP that connect the following 3 points:
point P (20.5, 51.7, 27.8),
point S (21.9, 39.7, 38.4), and
point T (8.6, 51.6, 39.8),
or on these line segments;
the line segment PS is represented by coordinates (0.0064y 2 −0.7103y+40.1, y, −0.0064y 2 −0.2897y+59.9);
the line segment ST is represented by coordinates (0.0082y 2 −1.8683y+83.126, y, −0.0082y 2 +0.8683y+16.874); and
the line segment TP is a straight line.
22. The air conditioning apparatus according to claim 21 , comprising:
a second duct that introduces the first air from the interior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the interior to the use-side heat exchanger with the casing connected to the second duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
23. The air conditioning apparatus according to claim 21 , comprising:
a third duct that introduces the first air from an exterior;
a use-side unit that includes the casing and that is configured to guide the first air introduced from the exterior to the use-side heat exchanger with the casing connected to the third duct; and
a heat-source-side unit that accommodates the heat-source-side heat exchanger and that differs from the use-side unit.
24. The air conditioning apparatus according to claim 21 , comprising:
a second duct that is connected to the casing and that supplies the first air introduced from the interior to the use-side space,
wherein the casing is provided with a partition plate that partitions the casing ( 730 ) into a heat-source-side space through which the second air introduced from an exterior passes and the use-side space to prevent circulation of air in the heat-source-side space and the use-side space, and
wherein the heat-source-side heat exchanger is disposed in the heat-source-side space.