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HEAT TRANSFER ENHANCEMENT FROM FINNED TUBES SITUATED IN A VERTICAL CHANNEL OF VARIABLE HEIGHT.

Author(s) : ALI B. M. A. al-, MUSTAFA B. M., FATIHY D. A.

Summary

AN EXPERIMENTAL STUDY WAS CARRIED OUT TO DETERMINE THE HEAT TRANSFER CHARACTERISTICS OF HORIZONTAL FINNED TUBES SITUATED IN A VERTICAL CHANNEL. THE EMPHASIS OF THE WORK IS TO STUDY THIS EFFECT OF HEIGHT OF SHROUDS. THE TUBE ASSEMBLY CONSISTED OF 2 HALF INCH DIAMETER TUBES FITTED WITH RECTANGULAR FINS. THE CHANNEL WAS A RECTANGULAR DUCT OPEN TO THE AMBIENT AT TOP AND BOTTOM. THE MODE OF HEAT TRANSFER INVESTIGATED WAS COMBINED NATURAL CONVECTION AND RADIATION. THE EFFECTS OF 6 DIFFERENT HEIGHTS OF THE SHROUDS WERE INVESTIGATED AT 4 FIN TO WALL CLEARANCE RATIOS. THE MAXIMUM ENHANCEMENT NOTED WAS 306% AT THE MAXIMUM SHROUD HEIGHT TO LENGTH RATIO OF 25 AND THE MINIMUM FIN TIP TO WALL CLEARANCE POSITION.

Details

  • Original title: HEAT TRANSFER ENHANCEMENT FROM FINNED TUBES SITUATED IN A VERTICAL CHANNEL OF VARIABLE HEIGHT.
  • Record ID : 1989-1770
  • Languages: English
  • Publication date: 1988/10/24
  • Source: Source: Int. Conf. Refrig. Air Cond., Amman
    209-214; 8 fig.; 3 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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