FOUL-RESISTANT CONDENSER USING MICROCHANNEL TUBING

A condenser coil for a refrigerated beverage and food service merchandiser includes a plurality of parallel fins between adjacent tubes. In order to reduce the likelihood of fouling by the bridging of fibers therebetween, the spacing of the fins is maintained at a distance of 0.4 to 0.8 inches apart...

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Bibliographische Detailangaben
Hauptverfasser:	DADDIS, EUGENE DUANE JR, CHIANG, ROBERT H. L
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COFFEE MILLS COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION DOMESTIC ARTICLES OR APPLIANCES FURNITURE HEAT EXCHANGE IN GENERAL HEAT PUMP SYSTEMS HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING HUMAN NECESSITIES ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PAYING COUNTERS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING REFRIGERATORS SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS,STOREHOUSES, BARS, RESTAURANTS OR THE LIKE SPICE MILLS SUCTION CLEANERS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A condenser coil for a refrigerated beverage and food service merchandiser includes a plurality of parallel fins between adjacent tubes. In order to reduce the likelihood of fouling by the bridging of fibers therebetween, the spacing of the fins is maintained at a distance of 0.4 to 0.8 inches apart. In one embodiment, the tubes comprise microchannel tubes, with no fins therebetween, and the spacing between the microchannel tubes is maintained in the range of 0.75 inches to optimize the heat transfer performance while minimizing the occurrence of fouling. A supporting structure is provided between microchannel tubes when no fins are included. Also, plural rows of microchannel tubes are provided with separate inlet headings and with the rows being staggered in transverse relationship to enhance the heat transfer characteristic while minimizing the likelihood of fouling.