Novel Heat Exchanger Materials for Fuel-Air Cooler Heat Exchanger

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-09-C-2907
Agency Tracking Number: F073-056-1526
Amount: $749,973.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2007
Solicitation Topic Code: AF073-056
Solicitation Number: 2007.3
Small Business Information
209 Puente Ave., City of Industry, CA, 91746
DUNS: 026249487
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Wei Shih
 (626) 369-1273
Business Contact
 Wei Shih
Title: President
Phone: (626) 369-1273
Research Institution
Open cell foam, which provides the highest heat transfer surface areas per unit volume, is considered as an excellent heat exchanger core material. Pyrolytic Carbon coated reticulated vitreous carbon (RVC) foam, developed by Allcomp, which offers highly conductive foam ligaments and is available in different pore sizes and density, provides wide design options. A hybrid heat exchanger composed of carbon foam as heat transfer core and metallic parting sheet can provide efficient heat transfer performance, acceptable pressure drop, sound structure that is compatible with external ducting, and meet leak tightness required for a fuel-air heat exchanger. Under this program, we plan to further optimize existing RVC based carbon foams to achieve improved thermal performance with minimum impact on the flow resistance. We also plan to further improve the reliability of joining between carbon foam and aluminum parting sheet meeting both thermal and structural requirements.  Finally, analytical models will also be developed based on experimental data to guide prototype design. A full-size return fuel-air cooler (RFAC) heat exchanger will be designed, fabricated and tested at end of the program. BENEFIT: A successful demonstration and qualification of a hybrid heat exchanger using open cell RVC foam and aluminum parting sheet for fuel-air heat exchanger will open up many design opportunities for other military and commercial heat exchanger applications.

* Information listed above is at the time of submission. *

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