Ultra-Lightweight Magnesium Heat Pipes for Spacecraft Thermal Management

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: NASA1462
Amount: $69,995.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Thermacore, Inc.
780 Eden Road, Lancaster, PA, 17604
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John Rosenfeld
 Senior Development Engineer
 (717) 569-6551
 rosenfeld@thermacore.com
Business Contact
 Jerome Toth
Title: VP Engineering & Technology
Phone: (717) 569-6551
Email: rhoover@thermacore.com
Research Institution
N/A
Abstract
Magnesium heat pipes are proposed for development to replace aluminum heat pipes as the standard for spacecraft heat rejection at near ambient temperatures. Recent developments have demonstrated the potential for special magnesium alloys to be compatible with the same working fluids as aluminum, but offer a 35% reduction in mass for similar applications. A magnesium heat pipe could potentially be extruded, bent, welded, and machined by conventional methods. Phase I work will establish working fluid compatibility and demonstrate the capability to fabricate magnesium heat pipes in representative geometry. Heat pipes will be built and tested using a minimum of two representative working fluids. Phase II work will further develop these concepts into axially grooved extruded heat pipes and loop heat pipes for deployable radiators, and a space flight demonstration for Phase II prototypes is proposed.

* information listed above is at the time of submission.

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