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AUGMENTED HEAT TRANSFER IN SQUARE CHANNELS WITH PARALLEL, CROSSED, AND V-SHAPED ANGLED RIBS.

Author(s) : HAN J. C., EHANG Y. M., LEE C. P.

Type of article: Article

Summary

THE EFFECT OF THE RIB ANGLE ORIENTATION ON THE LOCAL HEAT TRANSFER DISTRIBUTIONS AND PRESSURE DROP IN A SQUARE CHANNEL WITH 2 OPPOSITE IN-LINE RIBBED WALLS WAS INVESTIGATED FOR REYNOLDS NUMBERS FROM 15,000 TO 90,000. THE CHANNEL IS COMPOSED OF 10 ISOLATED COPPER SECTIONS. NINE RIB CONFIGURATIONS WERE STUDIED. THE RESULTS SHOW THAT THE 60 DEG (OR 45 DEG) V-SHAPED RIB PERFORMS BETTER THAN THE 60 DEG (OR 45 DEG) PARALLEL RIB AND, SUBSEQUENTLY, BETTER THAN THE 60 DEG (OR 45 DEG) CROSSED RIB AND THE 90 DEG RIB. THE CROSSED RIB HAS THE LOWEST HEAT TRANSFER ENHANCEMENT AND THE SMALLEST PRESSURE DROP PENALTY.

Details

  • Original title: AUGMENTED HEAT TRANSFER IN SQUARE CHANNELS WITH PARALLEL, CROSSED, AND V-SHAPED ANGLED RIBS.
  • Record ID : 1992-1580
  • Languages: English
  • Source: J. Heat Transf. - vol. 113 - n. 3
  • Publication date: 1991/08
  • Document available for consultation in the library of the IIR headquarters only.

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