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THE DEVELOPMENT OF CARBON-CARBON VACUUM ENVELOPES FOR HYPERSONIC VEHICLE HEAT…

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
13080
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
13080
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Thermacore, Inc.
780 Eden Road Lancaster, PA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: THE DEVELOPMENT OF CARBON-CARBON VACUUM ENVELOPES FOR HYPERSONIC VEHICLE HEAT PIPE APPLICATIONS
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $77,504.00
 

Abstract:

HYPERSONIC VEHICLE APPLICATIONS REQUIRE COOLING ON THE WING LEADING EDGES AND COWL LEADING EDGES. HEAT PIPES CAN COOL THESE SURFACES EITHER ACTIVELY OR PASSIVELY. COOLING THE LEADING EDGE ACTIVELY REQUIRES AN AUXILIARY HYDROGEN COOLED HEAT EXCHANGER COUPLED TO THE HEAT PIPE CONDENSER. THIS METHOD ADD WEIGHT AND COMPLEXITY TO THE DESIGN. PASSIVELY COOLING THE LEADING EDGE REQUIRES A MATERIAL WITH A HIGH SERVICE TEMPERATURE BECAUSE, AT STEADY STATE, THE HEAT INPUT MUST EQUAL THE RADIATED HEAT LOAD. CARBON-CARBON IS SUCH A MATERIAL. ALTHOUGH CARBON-CARBON HAS EXCELLENT MECHANICAL PROPERTIES AT HIGH TEMPERATURE SUCH AS HIGH SERVICE TEMPERATURE, HIGH STRENGTH AND MODULUS OF ELASTICITY AND LOW DENSITY, IT DOES HAVE SHORTCOMINGS WITH RESPECT TO HEAT PIPES. CARBON-CARBON IS POROUS AND HAS A VERY LOW COEFFICIENT OF THERMAL EXPANSION. THIS PHASE I PROGRAM OUTLINES A WORK EFFORT TO EVALUATE POSSIBLESEALING TECHNIQUES/MATERIALS TO THE CARBON-CARBON SUBSTRATE. THESE SEALING MATERIALS AND METHODS WILL BE APPLIED TO TEST COUPONS AND TESTED ACCORDING TO THE ENVIRONMENTAL CONDITIONS FOR HYPERSONIC VEHICLES. THE END RESULT OF THE WORK EFFORT WILL BE A VACUUM TIGHT CARBON-CARBON HEAT PIPE ENVELOPE TO BE USED FOR WING LEADING EDGES.

Principal Investigator:

John R Hartenstine
7175696551

Business Contact:

Small Business Information at Submission:

Thermacore Inc
780 Eden Rd Lancaster, PA 17601

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No