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TRANSIENT MEASUREMENT OF THE EXCHANGE COEFFICIENT ALONG A FIN IN A CONFINED MEDIUM.

MESURE PAR UNE METHODE TRANSITOIRE DU COEFFICIENT D'ECHANGE LE LONG D'UNE AILETTE EN MILIEU CONFINE.

Author(s) : HADI A., DEGIOVANNI A.

Type of article: Article

Summary

THE PURPOSE OF THE PAPER IS TO DETERMINE THE LOCAL EXCHANGE COEFFICIENT ALONG A SMALL CYLINDRICAL FIN LOCATED INA PLATE EXCHANGER. THE AUTHORS PRESENT A UNIQUE TRANSIENT MEASURING PROCEDURE. A VERY THIN METAL RING PLACED ON A FIN MADE OF AN INSULATING MATERIAL IS SUBJECTED TO A BRIEF CURRENT CHARGE. THE ANALYSIS OF THE TEMPERATURE CHANGE IN THE RING MAKES IT POSSIBLE TO IDENTIFY THE EXCHANGE COEFFICIENT BY COMPARING THE TEST THERMOGRAPH TO A THERMOKINETIC MODEL. THE AUTHORS VALIDATE THE MODEL ON AN INFINITE FIN AND GIVE THE RESULTS OBTAINED IN A HEAT EXCHANGER HAVING A CONFIGURATION WITH A SINGLE FIN ON A SMOOTH PLATE AND A FIN POSITIONED ON THE FINNED PLATE.

Details

  • Original title: MESURE PAR UNE METHODE TRANSITOIRE DU COEFFICIENT D'ECHANGE LE LONG D'UNE AILETTE EN MILIEU CONFINE.
  • Record ID : 1987-1735
  • Languages: French
  • Source: Rev. gén. Therm. - vol. 26 - n. 304
  • Publication date: 1987

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