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Design and Testing of a Natural Convection Experimental Setup on the External Surface of Heated Inclined Cylinders With a Constant Heat Flux Boundary Condition: Tests for Naked Cylinders

[+] Author Affiliations
Jaime Antonio Sánchez Baquerizo, Jorge W. Duque Rivera

Escuela Superior Politécnica del Litoral, Guayaquil, Ecuador

Paper No. HT-FED2004-56552, pp. 377-384; 8 pages
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 1
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4690-3 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME


An experimental setup for natural convection heat transfer from inclined heated cylinders with a constant heat flux boundary condition has been designed and tested for various heat fluxes and inclination angles. For the horizontal cylinder experiment the results are in good agreement with [2] within the range of Ra* (1E5 to 1E6). For the variable inclination experiments, comparisons were made with a correlation available for inclined isothermal cylinders [1]. It was observed, that although the boundary conditions that have been compared are different, the decreasing tendency of the Nusselt number holds as the inclination of the cylinder increases. The results have been correlated in an experimental equation shown at the end of this paper.

Copyright © 2004 by ASME



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