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TECHNICAL PAPERS: Heat Exchangers

Fabrication and Performance of a Pin Fin Micro Heat Exchanger

[+] Author and Article Information
Christophe Marques, Kevin W. Kelly

Mechanical Engineering Department, 2508 CEBA, Louisiana State University, Baton Rouge, LA 70803, USA

J. Heat Transfer 126(3), 434-444 (Jun 16, 2004) (11 pages) doi:10.1115/1.1731341 History: Received July 24, 2003; Revised February 04, 2004; Online June 16, 2004
Copyright © 2004 by ASME
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References

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Shen,  J. R., Wang,  Z., Ireland,  P. T., Jones,  T. V., and Byerley,  A. R., 1996, “Heat Transfer Enhancement Within a Turbine Blade Cooling Passage Using Ribs and Combinations of Ribs With Film Cooling Holes,” ASME J. Turbomach., 118, pp. 428–434.
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Figures

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Concept of a micro heat exchanger on the metal blade surface
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A modified version of the LIGA manufacturing process
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Top view of the nickel micro pin fin heat exchanger
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Three-dimensional view of the nickel microstructures
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Schematic of thermal resistances within the heat exchanger
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Nusselt number as a function of Reynolds number
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Friction factor as a function of Reynolds number
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Overall thermal performance parameter as a function of Reynolds number
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Schematic of thermal resistances in the turbine blade model
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Curved heat exchanger on a stainless steel tube
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Curved heat exchanger sliced with a wire EDM machine

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