CHILLERS CONTAINING A COMPOSITION COMPRISING 2,3,3,3-TETRAFLUOROPROPENE AND 1,1,1,2-TETRAFLUOROETHANE

Disclosed herein is a chiller apparatus containing a composition comprising from 51 to 67 weight percent 2,3,3,3-tetrafluoropropene and from 49 to 33 weight percent 1,1,1,2-tetrafluoroethane, wherein the chiller apparatus is a centrifugal chiller apparatus. Also disclosed herein is a method for prod...

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Bibliographische Detailangaben
Hauptverfasser:	KONTOMARIS, Konstantinos, LECK, Thomas, J
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES BLASTING CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS DYES HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed herein is a chiller apparatus containing a composition comprising from 51 to 67 weight percent 2,3,3,3-tetrafluoropropene and from 49 to 33 weight percent 1,1,1,2-tetrafluoroethane, wherein the chiller apparatus is a centrifugal chiller apparatus. Also disclosed herein is a method for producing cooling in a chiller. The method comprises (a)evaporating a liquid refrigerant comprising from 51 to 67 weight percent 2,3,3,3-tetrafluoropropene and from 49 to 33 weight percent 1,1,1,2-tetrafluoroethane in an evaporator having a heat transfer medium passing therethrough thereby producing a vapor refrigerant; and (b)compressing the vapor refrigerant in a compressor, wherein the volumetriecooling capacity of the refrigerant is greater than the individual volumetrie cooling capacities of both 2,3,3,3-tetrafluoropropene and 1,1,1,2- tetrafluoroethane alone, wherein the chiller apparatus is a centrifugal chiller apparatus. Also disclosed herein is a method for replacing a refrigerant in a chiller designed for using HFC-134a or CFC-12 asrefrigerant, comprising charging said chiller with a composition comprising a refrigerant consisting essentially of from 51 to 67 weight percent 2,3,3,3- tetrafluoropropene and from 49 to 33 weight percent 1,1,1,2- tetrafluoroethane thereby increasing the cooling capacity of the chiller, wherein the chiller apparatus is a centrifugal chiller apparatus.