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THE EFFECT OF CROSSFLOW AT THE ENTRANCE ON HEAT TRANSFER ENHANCEMENT IN TUBES.

Author(s) : METZGER D. E., CORDARO J. V.

Type of article: Article

Summary

AN APPARATUS WAS DESIGNED AND CONSTRUCTED TO ALLOW DETERMINATION OF THE CIRCUMFERENTIALLY AND AXIALLY AVERAGED HEAT TRANSFER COEFFICIENT IN SHORT BRANCH TUBES FOR A WIDE RANGE OF CROSSFLOW VELOCITIES AND TUBE REYNOLDS NUMBERS. AIR WAS USED AS THE TEST FLUID. THE EXPERIMENTAL RESULTS SHOW THAT THERE CAN BE A SIGNIFICANT EFFECT OF A CROSSFLOW OR TRANSVERSE ENTRANCE VELOCITY COMPONENT ON THE AVERAGE HEAT TRANSFER IN SHORT TUBES; A SITUATION COMMON IN HEAT EXCHANGE DEVICES WHERE MULTIPLE BRANCH COOLING PASSAGES ARE SUPPLIED FROM A MANIFOLD. THE HEAT TRANSFER ENHANCEMENT INCREASES WITH INCREASING CROSSFLOW-TO-TUBE VELOCITY RATIO; THE AMOUNT DEPENDING ON BOTH REYNOLDS NUMBER AND TUBE LENGTH-TO-DIAMETER RATIO. E.W.S.

Details

  • Original title: THE EFFECT OF CROSSFLOW AT THE ENTRANCE ON HEAT TRANSFER ENHANCEMENT IN TUBES.
  • Record ID : 1982-0738
  • Languages: English
  • Source: J. Heat Transf. - vol. 103 - n. 1
  • Publication date: 1981/02
  • Document available for consultation in the library of the IIR headquarters only.

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