Enhanced tube for direct expansion evaporators

An HVACR system, a direct expansion evaporator, and a direct expansion heat exchanger tube arranged to evaporate a working fluid inside the tube are disclosed. The tube includes an exterior surface of the tube opposing an inner surface of the tube, and a cavity layer on the inner surface configured...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Gorgy, Evraam I, Hartfield, Jon P
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	An HVACR system, a direct expansion evaporator, and a direct expansion heat exchanger tube arranged to evaporate a working fluid inside the tube are disclosed. The tube includes an exterior surface of the tube opposing an inner surface of the tube, and a cavity layer on the inner surface configured to evaporate the working fluid flowing in a first flow path arranged to direct the first fluid to flow through the tube and contact the cavity layer on the inner surface. A second flow path, separate from the first flow path, is arranged to direct a second fluid across the tube and to contact the extended member on the exterior surface of the tube such that the first fluid exchanges thermal energy with the second fluid.