Heat transfer methods, systems and compositions

Heat transfer methods, systems and compositions

Disclosed are refrigerants comprising at least about 97% by weight of a blend of three compounds, said blend consisting of:from about 38% by weight to about 48% by weight difluoromethane (HFC-32),from about 6% by weight to about 12% by weight pentafluoroethane (HFC-125),from about 33% by weight to a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Pottker, Gustavo, Smith, Gregory Laurence, Yana Motta, Samuel F, Vera Becerra, Elizabet del Carmen, Petersen, Michael, Sethi, Ankit
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
BLASTING
CHEMISTRY
COMBINED HEATING AND REFRIGERATION SYSTEMS
DYES
FUELS
HEAT PUMP SYSTEMS
HEATING
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
LUBRICANTS
LUBRICATING COMPOSITIONS
MANUFACTURE OR STORAGE OF ICE
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
MECHANICAL ENGINEERING
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
POLISHES
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
WEAPONS
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Beschreibung
Zusammenfassung:Disclosed are refrigerants comprising at least about 97% by weight of a blend of three compounds, said blend consisting of:from about 38% by weight to about 48% by weight difluoromethane (HFC-32),from about 6% by weight to about 12% by weight pentafluoroethane (HFC-125),from about 33% by weight to about 41% by weight trifluoroiodomethane (CF3I) andfrom about 2% by weight to about 16% by weight 2,3,3,3-tetrafluoropropene (HFO-1234yf)wherein the percentages are based on the total weight of the three compounds in the blend, and methods and systems which use same.