Method for controlling the temperature of a conditioned space using a cryogen

Methods and apparatus for controlling the temperature of a conditioned space (14), including a supply (16) of cryogen, and a fluid flow path (42) for the cryogen which includes a heat exchanger (48,74). A heater (96) is disposed to heat cryogen in the flow path in response to predetermined condition...

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Bibliographische Detailangaben
Hauptverfasser:	VIEGAS, HERMAN HERMOGIO, ROEHRICH, ROLAND LOUIS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEAT PUMP SYSTEMS HEATING ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PERFORMING OPERATIONS RANGES REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	Methods and apparatus for controlling the temperature of a conditioned space (14), including a supply (16) of cryogen, and a fluid flow path (42) for the cryogen which includes a heat exchanger (48,74). A heater (96) is disposed to heat cryogen in the flow path in response to predetermined conditions, and a cryogen pre-heater (98) is disposed to aid the heater. In a first embodiment, the pre-heater is aided by directing (77,152,150,134) warm cryogen in heat exchange relation with cryogen flowing through the pre-heater, with the warm cryogen being taken from a point (78) downstream from the heat exchanger. In another embodiment, the heater generates heated gases as a by-product, with the pre-heater being aided by directing (176,170,168) the heated gases in heat exchange relation with cryogen flowing through the pre-heater.