Refrigeration method and apparatus

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 refri...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FOERSTER, HANS, LESER, WOLFGANG
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	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.