EP2054484A1 - Kühlflüssigkeit - Google Patents
KühlflüssigkeitInfo
- Publication number
- EP2054484A1 EP2054484A1 EP07803931A EP07803931A EP2054484A1 EP 2054484 A1 EP2054484 A1 EP 2054484A1 EP 07803931 A EP07803931 A EP 07803931A EP 07803931 A EP07803931 A EP 07803931A EP 2054484 A1 EP2054484 A1 EP 2054484A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- hfc
- composition
- pentafluoroethane
- difluoromethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 9
- 239000012530 fluid Substances 0.000 title description 2
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims abstract description 34
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 4
- 239000012267 brine Substances 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- UJPMYEOUBPIPHQ-UHFFFAOYSA-N 1,1,1-trifluoroethane Chemical compound CC(F)(F)F UJPMYEOUBPIPHQ-UHFFFAOYSA-N 0.000 description 2
- RFCAUADVODFSLZ-UHFFFAOYSA-N 1-Chloro-1,1,2,2,2-pentafluoroethane Chemical compound FC(F)(F)C(F)(F)Cl RFCAUADVODFSLZ-UHFFFAOYSA-N 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- 235000019406 chloropentafluoroethane Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- 239000004340 Chloropentafluoroethane Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
- C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
- C09K5/045—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen
Definitions
- the present invention relates to a composition based on HydroFluoroCarbures (HFC), suitable for use in refrigeration.
- HFC HydroFluoroCarbures
- the azeotrope consisting of 48.8% by weight of chlorodifluoromethane
- HCFC-22 or R-22 chloropentafluoroethane
- CFC-115 chloropentafluoroethane
- R-502 chloropentafluoroethane
- a ternary mixture consisting of 44% by weight of pentafluoroethane (HFC-125), 52% by weight of 1, 1, 1 trifluoroethane (HFC-143a) and 4% by weight of 1, 1, 1, 2 tetrafluoroethane (HFC-134a), known as R-404A was used to replace R-502.
- the object of the present invention is to provide a composition that can be used as a refrigerant and that meets the desire for a lower environmental impact.
- the subject of the present invention is therefore the use of a composition comprising 45-55% by weight of difluoromethane (HFC-32) and 45-55% by weight of pentafluoroethane (HFC-125) replacing R-404A in refrigerant equipment.
- the composition consists essentially of 45-55% by weight of difluoromethane (HFC-32) and 45-55% by weight of pentafluoroethane (HFC-125).
- composition according to the present invention is advantageously azeotropic or almost azeotropic.
- a (quasi) -azeotropic composition consisting essentially of 48- 52% by weight of difluoromethane and 48-52% by weight of pentafluoroethane (HFC-125) is particularly suitable.
- a (quasi) -azeotropic composition consisting essentially of
- composition according to the present invention is preferably used in refrigerating equipment operating at a temperature between -40 and -10 ° C, preferably between -30 and -15 ° C.
- composition (C1) containing 50% by weight of difluoromethane and 50% by weight of pentafluoroethane, with R-404A on a refrigerating machine, a brine cooler cooled with water.
- the cooling capacity is calculated by measuring the flow of brine entering the evaporator and measuring the inlet and outlet temperatures of the brine to the evaporator.
- the efficiency is calculated by the Coefficient of Performance (COP), ratio of the cooling capacity to the electrical power absorbed by the fluid at the compressor.
- COP Coefficient of Performance
- the following table provides for different operating conditions and for each test the cooling capacity, the COP, the condensing pressure and the GWP.
- compositions of this invention have better performance (cooling capacity and COP) than those of R-404A for significantly lower GWP than R-404A.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0653412A FR2904975A1 (fr) | 2006-08-21 | 2006-08-21 | Fluide frigorigene |
| PCT/FR2007/051508 WO2008023122A1 (fr) | 2006-08-21 | 2007-06-25 | Fluide frigorigene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2054484A1 true EP2054484A1 (de) | 2009-05-06 |
Family
ID=37903601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07803931A Withdrawn EP2054484A1 (de) | 2006-08-21 | 2007-06-25 | Kühlflüssigkeit |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2054484A1 (de) |
| AU (1) | AU2007287482A1 (de) |
| FR (1) | FR2904975A1 (de) |
| WO (1) | WO2008023122A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020031484A1 (ja) * | 2018-08-09 | 2020-02-13 | ダイキン工業株式会社 | 冷媒を含有する組成物、並びに、その組成物を用いた冷凍方法、冷凍装置の運転方法及び冷凍装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5403504A (en) * | 1990-12-17 | 1995-04-04 | E. I. Du Pont De Nemours And Company | Process for heating and cooling using substantially constant boiling compositions of fluorinated hydrocarbons |
| JP3557053B2 (ja) * | 1996-09-30 | 2004-08-25 | 三洋電機株式会社 | 冷媒圧縮機 |
| FR2756294B1 (fr) * | 1996-11-27 | 2000-10-20 | Atochem Elf Sa | Utilisation de melanges a base de difluoromethane et de pentafluoroethane comme fluides frigorigenes en refrigeration tres basse temperature |
| TW492999B (en) * | 1997-01-31 | 2002-07-01 | Showa Denko Kk | Process for preparing mixed cooling-media |
| US5916252A (en) * | 1997-10-29 | 1999-06-29 | Matsushita Electric Industrial Co., Ltd. | Refrigerating or air-conditioning apparatus |
| US6374621B1 (en) * | 2000-08-24 | 2002-04-23 | Cincinnati Sub-Zero Products, Inc. | Refrigeration system with a scroll compressor |
-
2006
- 2006-08-21 FR FR0653412A patent/FR2904975A1/fr active Pending
-
2007
- 2007-06-25 AU AU2007287482A patent/AU2007287482A1/en not_active Abandoned
- 2007-06-25 EP EP07803931A patent/EP2054484A1/de not_active Withdrawn
- 2007-06-25 WO PCT/FR2007/051508 patent/WO2008023122A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008023122A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2904975A1 (fr) | 2008-02-22 |
| WO2008023122A1 (fr) | 2008-02-28 |
| AU2007287482A1 (en) | 2008-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20090212 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20091112 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20100323 |