Refrigeration method and apparatus

Details Refrigeration method and apparatus Refrigeration method and apparatus

1996-01-30

1997-12-09

Capossela, Ronald C.

Refrigeration

Processes

Treating an article

62332, 62374, 62381, F25D 1306

Patent

active

056947763

ABSTRACT:
A method and apparatus of refrigerating a heat load in which heat is indirectly exchanged between the heat load and a cryogenic refrigerant so that the heat load cools. Further heat is then indirectly exchanged between the heat load and the mechanical refrigerant. The mechanical refrigerant is subjected to refrigeration cycle in which the mechanical refrigerant is compressed, cooled, condensed, expanded and evaporated. Other heat is indirectly exchanged between the cryogenic refrigerant and the mechanical refrigerant. The cryogenic refrigerant is subjected to its heat exchange with the mechanical refrigerant after having exchanged heat with the heat load. The mechanical refrigerant is subjected to the indirect heat exchange with the cryogenic refrigerant between condensation and expansion of the mechanical refrigerant within the refrigeration cycle.

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patent: 4858445 (1989-08-01), Rasovich
patent: 5042262 (1991-08-01), Fyger et al.
patent: 5170631 (1992-12-01), Lang et al.
patent: 5220803 (1993-06-01), Kiczek
patent: 5331824 (1994-07-01), Miller et al.

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