Share

EFFECTS OF SEVERAL ROUGHNESS ELEMENTS ON AN INSULATED WALL FOR HEAT TRANSFER FROM THE OPPOSITE SMOOTH HEATED SURFACE IN A PARALLEL PLATE DUCT.

Author(s) : ICHIMIYA K.

Type of article: Article

Summary

EXPERIMENTS WERE CARRIED OUT TO EXAMINE THE EFFECTS OF SEVERAL ROUGHNESS ELEMENTS ON THE INSULATED WALL OPPOSITE THE SMOOTH HEATED PLATE FOR THE HEAT TRANSFER WITH AIR FLOWING THROUGH A PARALLEL PLATE DUCT. THE LOCAL HEAT TRANSFER COEFFICIENT, THE VELOCITY DISTRIBUTION, THE TURBULENCE INTENSITY, AND THE PRESSURE DROP WERE MEASURED. AN OPTIMUM PITCH OF ROUGHNESSELEMENTS FOR THE AUGMENTATION OF HEAT TRANSFER EXISTS FOR EACH SPACE BETWEEN PLATES. THE CORRESPONDENCE BETWEEN THE HEAT TRANSFER AND THE FLOW SITUATION IS ALSO EXAMINED. ACCELERATION AND TURBULENCE PRODUCED BY ROUGHNESS ELEMENTS CONTRIBUTE TO THE INCREASE OF THE LOCAL HEAT TRANSFER COEFFICIENTS ON THE SMOOTH HEATED PLATE.

Details

  • Original title: EFFECTS OF SEVERAL ROUGHNESS ELEMENTS ON AN INSULATED WALL FOR HEAT TRANSFER FROM THE OPPOSITE SMOOTH HEATED SURFACE IN A PARALLEL PLATE DUCT.
  • Record ID : 1987-2126
  • Languages: English
  • Source: J. Heat Transf. - vol. 109 - n. 1
  • Publication date: 1987/02
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (10)
See the source

Indexing