System and method for regulating the flow of a fluid refrigerant

Details System and method for regulating the flow of a fluid refrigerant System and method for regulating the flow of a fluid refrigerant

1997-08-15

1999-11-23

Kilner, Christopher B.

Refrigeration

Storage of solidified or liquified gas

With vapor discharged from storage receptacle

62 501, 62 502, 62 511, F17C 310

Patent

active

059878967

ABSTRACT:
A system for providing a fluid refrigerant to a cooling element is provided herein. The system includes a vessel which holds the fluid refrigerant, a heat source evaporating a portion of the fluid in the vessel, and a heat exchanger condensing a portion of the gaseous phase of the fluid in the vessel. A conduit establishes fluid communication between: (i) the vessel and the cooling element; and (ii) the cooling element and the heat exchanger. Importantly, the system controls the flow rate of the fluid refrigerant to the cooling element by controlling the pressure of the fluid in the vessel. The system is particularly useful with cryogenic fluid refrigerants to cool a superconductor for an MRI System.

REFERENCES:
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patent: 5291169 (1994-03-01), Ige et al.
patent: 5412363 (1995-05-01), Breneman et al.
patent: 5414399 (1995-05-01), Breneman et al.
Chapter 5, entitled Psychrometrics , from the ASHRAE Handbook of Fundamentals, pp. 97-101.

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