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US 6,176,102 B1Granted
Method for providing refrigeration
AssigneePraxair Technology, Inc.
InventorsRichard A. Novak, Gary D. Lang, Arun Acharya, John Henri Royal, Mohammad Abdul-Aziz Rashad
Life of this patent
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Abstract
A method for providing refrigeration such as to an insulated enclosure wherein a defined multicomponent refrigerant fluid undergoes a phase change coupled with Joule-Thomson expansion to generate refrigeration over a wide temperature range which may comprise from ambient to low temperatures.
Claims33
A method for providing refrigeration comprising:
- (A) compressing a multicomponent refrigerant fluid comprising at least one component from the group consisting of fluorocarbons, hydrofluorocarbons and fluoroethers and at least one atmospheric gas;
- (B) cooling and at least partially condensing the compressed multicomponent refrigerant fluid;
- (C) expanding the at least partially condensed multicomponent refrigerant fluid to generate refrigeration;
- and
- (D) warming and at least partially vaporizing the refrigeration bearing multicomponent refrigerant fluid and employing refrigeration from the multicomponent refrigerant fluid in an enclosure.
2 more elements
A method for providing refrigeration comprising:
- (A) compressing a multicomponent refrigerant fluid comprising at least one component from the group consisting of fluorocarbons, hydrofluorocarbons and fluoroethers and at least one component from the group consisting of fluorocarbons, hydrofluorocarbons, fluoroethers and atmospheric gases;
- (B) cooling and at least partially condensing the compressed multicomponent refrigerant fluid;
- (C) expanding the at least partially condensed multicomponent refrigerant fluid to generate refrigeration;
- and
- (D) warming and at least partially vaporizing the refrigeration bearing multicomponent refrigerant fluid and employing refrigeration from the multicomponent refrigerant fluid in an insulated enclosure wherein the warming and at least partially vaporizing of refrigeration bearing multicomponent refrigerant fluid is by heat exchange with insulated enclosure atmosphere fluid to produce refrigerated insulated enclosure atmosphere fluid and further comprising (E) employing the refrigerated insulated enclosure atmosphere fluid within an insulated enclosure to provide refrigeration to the insulated enclosure.
2 more elements
Dependencies are inferred from the claim text.