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US 6,453,677 B1Granted
Magnetic refrigeration cryogenic vessel system
AssigneePraxair Technology, Inc.
InventorBayram Arman
Life of this patent
Estimating the term…
Abstract
A cryogenic vessel system for containing cryogenic fluid wherein refrigeration is generated by applying and withdrawing a magnetic field to a bed of magnetizable particles, and the refrigeration is provided to the vessel interior to counteract heat leak into the vessel.
Claims13
A method for providing refrigeration to a cryogenic vessel comprising:
- (A) passing working fluid through a bed of magnetic particles and passing heat from the bed of magnetic particles to the working fluid to produce warmed working fluid and a cooled bed of magnetic particles;
- (B) removing heat from the warmed working fluid to produce cooled working fluid;
- (C) passing cooled working fluid through the cooled bed of magnetic particles to produce refrigeration bearing working fluid;
- and
- (D) providing refrigeration from the refrigeration bearing working fluid to a cryogenic vessel which contains cryogenic fluid.
2 more elements
A cryogenic vessel comprising:
- (A) a vessel having an outer shell defining a vessel interior;
- (B) a first reservoir, a cold heat exchanger, a magnetic particle bed, said first reservoir being in flow communication with said cold heat exchanger, and said cold heat exchanger being in flow communication with said magnetic particle bed;
- (C) a hot heat exchanger, a second reservoir, said magnetic particle bed being in flow communication with said hot heat exchanger, and said hot heat exchanger being in flow communication with said second reservoir;
- and
- (D) said cold heat exchanger being in heat exchange relation with the vessel interior.
2 more elements
Dependencies are inferred from the claim text.