Thermal conductance and loss of pressure are among the most relevant parameters based on which a heat exchanger has to be chosen. Starting from this observation this study treated and compared the performances of different exchanging systems, always in condition of forced convection of air in laminar flow. The study parameters were two fin shapes, four modules (shapes), and four duct geometries (depending on the parameter shape ratio, defined in Sec. 3). The approach chosen was that of Bejan’s Constructal theory numerically implemented by the finite element code COMSOL MULTIPHYSICS. The results showed the importance of considering not the heat removing performance alone as a decisional parameter and proved that the “classic” I-shaped finned systems very often are not the best performing ones, while optimized Y profiles may offer better perspectives. Having demonstrated the relevance of the present approach, future developments of this research will have to put together the different evaluation criteria presented in an only performance parameter.
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September 2009
Research Papers
Numerical Performance Analysis of Constructal I and Y Finned Heat Exchanging Modules
Giulio Lorenzini,
Giulio Lorenzini
Department of Agricultural Economics and Engineering, Alma Mater Studiorum-
e-mail: giulio.lorenzini@unibo.it
University of Bologna
, Viale Fanin No. 50, 40127 Bologna, Italy
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Simone Moretti
Simone Moretti
Department of Agricultural Economics and Engineering, Alma Mater Studiorum-
University of Bologna
, Viale Fanin No. 50, 40127 Bologna, Italy
Search for other works by this author on:
Giulio Lorenzini
Department of Agricultural Economics and Engineering, Alma Mater Studiorum-
University of Bologna
, Viale Fanin No. 50, 40127 Bologna, Italye-mail: giulio.lorenzini@unibo.it
Simone Moretti
Department of Agricultural Economics and Engineering, Alma Mater Studiorum-
University of Bologna
, Viale Fanin No. 50, 40127 Bologna, ItalyJ. Electron. Packag. Sep 2009, 131(3): 031012 (10 pages)
Published Online: July 31, 2009
Article history
Received:
July 29, 2008
Revised:
January 30, 2009
Published:
July 31, 2009
Citation
Lorenzini, G., and Moretti, S. (July 31, 2009). "Numerical Performance Analysis of Constructal I and Y Finned Heat Exchanging Modules." ASME. J. Electron. Packag. September 2009; 131(3): 031012. https://doi.org/10.1115/1.3144152
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