WO2008023122A1 - Fluide frigorigene - Google Patents
Fluide frigorigene Download PDFInfo
- Publication number
- WO2008023122A1 WO2008023122A1 PCT/FR2007/051508 FR2007051508W WO2008023122A1 WO 2008023122 A1 WO2008023122 A1 WO 2008023122A1 FR 2007051508 W FR2007051508 W FR 2007051508W WO 2008023122 A1 WO2008023122 A1 WO 2008023122A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- hfc
- composition
- pentafluoroethane
- difluoromethane
- Prior art date
Links
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)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2007287482A AU2007287482A1 (en) | 2006-08-21 | 2007-06-25 | Refrigerant fluid |
EP07803931A EP2054484A1 (fr) | 2006-08-21 | 2007-06-25 | Fluide frigorigene |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0653412A FR2904975A1 (fr) | 2006-08-21 | 2006-08-21 | Fluide frigorigene |
FR0653412 | 2006-08-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008023122A1 true WO2008023122A1 (fr) | 2008-02-28 |
Family
ID=37903601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2007/051508 WO2008023122A1 (fr) | 2006-08-21 | 2007-06-25 | Fluide frigorigene |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2054484A1 (fr) |
AU (1) | AU2007287482A1 (fr) |
FR (1) | FR2904975A1 (fr) |
WO (1) | WO2008023122A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3835391A4 (fr) * | 2018-08-09 | 2022-07-13 | Daikin Industries, Ltd. | Composition contenant un réfrigérant, procédé de congélation utilisant ladite composition, procédé de fonctionnement de réfrigérateur et réfrigérateur |
Citations (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 |
EP0845519A1 (fr) * | 1996-11-27 | 1998-06-03 | Elf Atochem S.A. | Utilisation de mélanges à base de difluorométhane et de pentafluoroéthane comme fluides frigorigènes en réfrigération tres basse température |
EP0856571A2 (fr) * | 1997-01-31 | 1998-08-05 | Showa Denko Kabushiki Kaisha | Procédé pour la production de mélanges de réfrigerants |
US5916252A (en) * | 1997-10-29 | 1999-06-29 | Matsushita Electric Industrial Co., Ltd. | Refrigerating or air-conditioning apparatus |
US5956959A (en) * | 1996-09-30 | 1999-09-28 | Sanyo Electric Co., Ltd. | Refrigerant compressor and cooling apparatus comprising the same |
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 WO PCT/FR2007/051508 patent/WO2008023122A1/fr active Application Filing
- 2007-06-25 AU AU2007287482A patent/AU2007287482A1/en not_active Abandoned
- 2007-06-25 EP EP07803931A patent/EP2054484A1/fr not_active Withdrawn
Patent Citations (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 |
US5956959A (en) * | 1996-09-30 | 1999-09-28 | Sanyo Electric Co., Ltd. | Refrigerant compressor and cooling apparatus comprising the same |
EP0845519A1 (fr) * | 1996-11-27 | 1998-06-03 | Elf Atochem S.A. | Utilisation de mélanges à base de difluorométhane et de pentafluoroéthane comme fluides frigorigènes en réfrigération tres basse température |
EP0856571A2 (fr) * | 1997-01-31 | 1998-08-05 | Showa Denko Kabushiki Kaisha | Procédé pour la production de mélanges de réfrigerants |
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 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3835391A4 (fr) * | 2018-08-09 | 2022-07-13 | Daikin Industries, Ltd. | Composition contenant un réfrigérant, procédé de congélation utilisant ladite composition, procédé de fonctionnement de réfrigérateur et réfrigérateur |
Also Published As
Publication number | Publication date |
---|---|
EP2054484A1 (fr) | 2009-05-06 |
AU2007287482A1 (en) | 2008-02-28 |
FR2904975A1 (fr) | 2008-02-22 |
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