TY - GEN
T1 - Experimental comparison of a traditionally built versus additively manufactured aircraft heat exchanger
AU - Saltzman, David
AU - Bichnevicius, Michael
AU - Lynch, Stephen
AU - Simpson, Timothy W.
AU - Reutzel, Edward W.
AU - Dickman, Corey
AU - Martukanitz, Richard
N1 - Publisher Copyright:
© 2017 by David Saltzman, Michael Bichnevicius, Stephen Lynch, Timothy W. Simpson, Edward W. Reutzel, Corey Dickman, Richard Martukanitz. Published by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
PY - 2017
Y1 - 2017
N2 - This study compared the performance of both baseline and enhanced traditionally built heat exchangers (aircraft oil coolers), to both baseline and enhanced additively manufactured (AM) heat exchangers of similar geometry. Three dimensional (3D) X-ray computed tomography scans were performed on the baseline traditionally built heat exchanger in order to develop a solid model for AM fabrication using a laser-based powder bed fusion process with AlSi10Mg powder. Two AM heat exchanger geometries were constructed to replicate the baseline traditionally built geometry, with one AM heat exchanger containing additional small air-side enhancement features. The air-side pressure drop for the AM heat exchangers was double that of the traditionally built baseline heat exchanger. Heat transfer was increased by about 10 percent for the baseline AM and by 14 percent for the enhanced AM heat exchanger when compared to the traditionally built baseline heat exchanger. Both of the AM heat exchangers performed as well as the enhanced traditionally built model, but both had a higher pressure drop. Ongoing research seeks to ascertain the specific causes of the increased pressure drop and improved heat transfer, in order to provide a foundation for enhancement of future AM-built heat exchanger designs.
AB - This study compared the performance of both baseline and enhanced traditionally built heat exchangers (aircraft oil coolers), to both baseline and enhanced additively manufactured (AM) heat exchangers of similar geometry. Three dimensional (3D) X-ray computed tomography scans were performed on the baseline traditionally built heat exchanger in order to develop a solid model for AM fabrication using a laser-based powder bed fusion process with AlSi10Mg powder. Two AM heat exchanger geometries were constructed to replicate the baseline traditionally built geometry, with one AM heat exchanger containing additional small air-side enhancement features. The air-side pressure drop for the AM heat exchangers was double that of the traditionally built baseline heat exchanger. Heat transfer was increased by about 10 percent for the baseline AM and by 14 percent for the enhanced AM heat exchanger when compared to the traditionally built baseline heat exchanger. Both of the AM heat exchangers performed as well as the enhanced traditionally built model, but both had a higher pressure drop. Ongoing research seeks to ascertain the specific causes of the increased pressure drop and improved heat transfer, in order to provide a foundation for enhancement of future AM-built heat exchanger designs.
UR - http://www.scopus.com/inward/record.url?scp=85017095489&partnerID=8YFLogxK
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U2 - 10.2514/6.2017-0902
DO - 10.2514/6.2017-0902
M3 - Conference contribution
AN - SCOPUS:85017095489
T3 - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
BT - AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 55th AIAA Aerospace Sciences Meeting
Y2 - 9 January 2017 through 13 January 2017
ER -