External ribbed furnace tubes

Details External ribbed furnace tubes External ribbed furnace tubes

2006-10-31

2006-10-31

Walberg, Teresa J. (Department: 3753)

Heat exchange

Tubular structure

With discrete heat transfer means

C029S890046

Reexamination Certificate

active

07128139

ABSTRACT:
In a radiant heating box there is a convection current which flows over the surface of tubes in the box. Adding ribs to the external surface of vertical tubes provides an enhancement to the heat transfer by convection and increases the heat transfer to the tubes.

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patent: 6808017 (2004-10-01), Kaellis
R.L. Webb, E.R.G. Eckert and R.J. Goldstein, Heat Transfer and Friction in Tubes with Repeated-Rib Roughness, Int. J. Heat Mass Transfer., vol. 14, pp. 601-617, 1970, gbx
Enhanced Heat Exchangers for Process Heaters, Published Nov. 2001 by the Office of Industrial Technologies, U.S. Dept. of Energy.
Seyhan Uygur Onbasioglu, and Huseyin Onbasiouglu, On Enhancement of Heat Transfer with Ribs, Applied Thermal Engineering 24 (2004) pp. 43-57.

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