Rapid Prototyping (RP) has allowed prototypes with complex geometries to be possible during the past decade, such as complex geometry heat exchangers and fins. These structures are modeled after the covalent bonding between the carbon atoms of a diamond. The tetrahedron diamond lattice, or Tetralattice™, is a repeating lattice unit that lends itself to RP. Currently, fabrication of a thermal conduction module using two materials in a gradient fashion from one end to the other using intertwined Tetralattice™ pattern is being attempted at Milwaukee School of Engineering. The stainless steel (SS) portion of the gradient fin was fabricated by employing selective laser melting. The testing of this gradient fin for its performance with the base heated at a constant temperature was targeted and compared with the traditional cylindrical SS fin. Convective heat transfer was found to be enhanced due to the large surface area of the Tetralattice™ structure. A thermal imaging study was also conducted on this gradient fin. Infrared thermography captured data that would be nearly impossible to gather using thermocouples. These tests provided detailed heat transfer characteristics of this Tetralattice™ fin. This project tested the limits on fabrication of a complex geometry gradient fin; the authors project tremendous potential for use of such fins in automotive and aerospace applications.
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ASME 2008 International Mechanical Engineering Congress and Exposition
October 31–November 6, 2008
Boston, Massachusetts, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4865-4
PROCEEDINGS PAPER
A Tetralattice™ Gradient Fin: Its Creation and Testing
S. Kumpaty,
S. Kumpaty
Milwaukee School of Engineering, Milwaukee, WI
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A. Schneider,
A. Schneider
Milwaukee School of Engineering, Milwaukee, WI
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J. Benavides,
J. Benavides
Milwaukee School of Engineering, Milwaukee, WI
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C. Oware
C. Oware
Milwaukee School of Engineering, Milwaukee, WI
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S. Kumpaty
Milwaukee School of Engineering, Milwaukee, WI
A. Schneider
Milwaukee School of Engineering, Milwaukee, WI
J. Benavides
Milwaukee School of Engineering, Milwaukee, WI
C. Oware
Milwaukee School of Engineering, Milwaukee, WI
Paper No:
IMECE2008-66107, pp. 297-303; 7 pages
Published Online:
August 26, 2009
Citation
Kumpaty, S, Schneider, A, Benavides, J, & Oware, C. "A Tetralattice™ Gradient Fin: Its Creation and Testing." Proceedings of the ASME 2008 International Mechanical Engineering Congress and Exposition. Volume 4: Design and Manufacturing. Boston, Massachusetts, USA. October 31–November 6, 2008. pp. 297-303. ASME. https://doi.org/10.1115/IMECE2008-66107
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