IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0704882
(2010-02-12)
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등록번호 |
US-8168077
(2012-05-01)
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발명자
/ 주소 |
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출원인 / 주소 |
- Honeywell International, Inc.
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대리인 / 주소 |
Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
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인용정보 |
피인용 횟수 :
1 인용 특허 :
17 |
초록
▼
A refrigerant composition. The composition has 25 to 35 mass % difluoromethane, 20 to 40 mass % pentafluoroethane, and 35 to 45 mass % tetrafluoroethane. The composition exhibits a positive superheat at an evaporation temperature of about −30° F. There is also a process for producing refrigeration a
A refrigerant composition. The composition has 25 to 35 mass % difluoromethane, 20 to 40 mass % pentafluoroethane, and 35 to 45 mass % tetrafluoroethane. The composition exhibits a positive superheat at an evaporation temperature of about −30° F. There is also a process for producing refrigeration and a refrigeration system.
대표청구항
▼
1. A refrigerant composition, comprising: 25 to 35 mass % difluoromethane,20 to 40 mass % pentafluoroethane, and35 to 45 mass % tetrafluoroethane,wherein the composition exhibits a positive superheat not greater than about 8° F. at an evaporation temperature of about −30° F. at an outdoor temperatur
1. A refrigerant composition, comprising: 25 to 35 mass % difluoromethane,20 to 40 mass % pentafluoroethane, and35 to 45 mass % tetrafluoroethane,wherein the composition exhibits a positive superheat not greater than about 8° F. at an evaporation temperature of about −30° F. at an outdoor temperature of 95° F. 2. The composition of claim 1, wherein the composition is at least one selected from the group consisting of: about 30 mass % difluoromethane, about 30 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane;about 25 mass % difluoromethane, about 35 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane; andabout 35 mass % difluoromethane, about 25 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane. 3. The composition of claim 1, wherein the composition exhibits a superheat about 4° to about 8° F. at an evaporation temperature of about −30° F. 4. The composition of claim 3, wherein the composition further exhibits a superheat of about 8° to about 16° F. at an evaporation temperature of about 15 to 30° F., and/or about 8° to about 12° F. at an evaporation temperature of about −15° F. 5. The composition of claim 1, wherein the composition exhibits at least about 95% of one or more of the properties of chlorodifluoromethane selected from the group consisting of: cooling capacity, efficiency (COP), and mass flow. 6. A process for producing refrigeration, comprising condensing and evaporating a refrigerant composition, wherein the refrigerant composition comprises: 25 to 35 mass % difluoromethane,20 to 40 mass % pentafluoroethane, and35 to 45 mass % tetrafluoroethane, wherein the composition exhibits a positive superheat not greater than about 8° F. at an evaporation temperature of about −30° F. at an outdoor temperature of 95° F. 7. The process of claim 6, wherein the composition is at least one selected from the group consisting of: about 30 mass % difluoromethane, about 30 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane;about 25 mass % difluoromethane, about 35 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane; andabout 35 mass % difluoromethane, about 25 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane. 8. The system of claim 6, wherein the composition exhibits a superheat of between about 4° to about 8° F. at an evaporation temperature of about −30° F. 9. The process of claim 8, wherein the composition further exhibits a superheat of about 8° to about 16° F. at an evaporation temperature of about 15 to 30° F., and/or about 8° to about 12° F. at an evaporation temperature of about −15° F. 10. The process of claim 6, wherein the composition exhibits at least about 95% of one or more of the properties of chiorodifluoromethane selected from the group consisting of: cooling capacity, efficiency (COP), and mass flow. 11. A refrigerant system, comprising a condenser, an evaporator, and a refrigerant composition, wherein said refrigerant composition comprises: 25 to 35 mass % difluoromethane;20 to 40 mass % pentafluoroethane; and35 to 45 mass % tetrafluoroethane, wherein the refrigerant composition exhibits a positive superheat not greater than about 8° F. at an evaporation temperature of about −30° F. in the refrigeration system at an outdoor temperature of 95° F. 12. The system of claim 11, wherein the refrigerant composition is at least one selected from the group consisting of: about 30 mass % difluoromethane, about 30 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane;about 25 mass % difluoromethane, about 35 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane; andabout 35 mass % difluoromethane, about 25 mass % pentafluoroethane, and about 40 mass % tetrafluoroethane. 13. The system of claim 11, wherein the refrigerant composition exhibits a superheat of about 4° to about 8° F. at an evaporation temperature of about −30° F. 14. The system of claim 13, wherein the refrigerant composition further exhibits a superheat of about 8° to about 16° F. at an evaporation temperature of about 15 to 30° F., and/or about 8° to about 12° F. at an evaporation temperature of about −15° F. 15. The system of claim 11, wherein the refrigerant composition exhibits at least about 95% of one or more of the properties of chlorodifluoromethane selected from the group consisting of: cooling capacity, efficiency (COP), and mass flow.
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