Refrigeration method and apparatus

Details Refrigeration method and apparatus Refrigeration method and apparatus

1996-03-11

1997-12-23

Capossela, Ronald C.

Refrigeration

Processes

Reducing pressure on compressed gas

62402, F25B 900

Patent

active

056996721

ABSTRACT:
The invention relates to a novel refrigeration method and apparatus in which air is used as coolant and primary refrigerant. The air is subjected to substantially isothermal compression in a water-injected screw-type compressor, cooling in first and second scrubber columns operated by separate refrigerant circuits, and subsequent adiabatic substantially isentropic expansion in a high-speed turbine. Heat exchangers may be provided for the removal of residual coldness from the expanded air and for preheating the air fed to the compressor.

REFERENCES:
patent: 3394555 (1968-07-01), La Fleur
patent: 3854300 (1974-12-01), Gerhold
patent: 4553407 (1985-11-01), Rannenberg

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