SBIR/STTR Research Award

POWER SYSTEMS

Award identifier 61a00e155cb76339b179e9987b062bff3e5f66fa20c23e168c5f77540af0a684Awarding agency National Aeronautics and Space Administration

Award amount

$50,000

Program and phase

SBIR · Phase I

Award year

1983

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Award details

Awarding agency
National Aeronautics and Space Administration
Branch
Not reported
Recipient company
Energy Research & Generation
Proposal award date
Not reported
Contract end date
Not reported
UEI
Not reported
Solicitation number
Not reported
Topic code
Not reported

Research abstract

THIS PROJECT INVESTIGATES THE DESIGN, FABRICATION, TESTING, AND DEMONSTRATION OF A LIGHTWEIGHT, HIGH EFFICIENCY, COMPACTLINEAR ALTERNATOR FOR FREE-PISTON-STIRLING-ENGINE (FPSE) SPACEPOWER CONVERSION SYSTEMS. THE FEASIBILITY, LIMITATIONSAND POTENTIAL OF THE NEW ALTERNATOR CONCEPT IS ASSESSED THROUGH ANALYSES AND TESTING TO DETERMINE: (1) SPECIFIC WEIGHT AS A FUNCTION OF EFFICIENCY, SIZE, AND FREQUENCY, (2) CONTROLLABILITY, (3) RESPONSE TO TRANSIENT LOADS, (4) VOLTAGE WAVEFORM AND ALTERNATOR EFFICIENCY AS A FUNCTION OF THE LOAD, AND (5) COST-EFFECTIVENESS. BASED UPON PRELIMINARY ANALYSIS, THE LINEAR ALTERNATOR CONCEPT, WHEN SUCCESSFULLY DEVELOPED AND MATED WITH A DYNAMICALLY BALANCEDFPSE, OFFERS A SPACE-QUALIFIED ELECTRIC POWER PLANT HAVING POTENTIAL SPECIFIC WEIGHTS OF 1 KG/KW(E) AND AN OVERALL BUS-BAR EFFICIENCY OF 40% USING 1500 K HEAT INPUT BY LITHIUMHEAT PIPES AND 750 K HEAT REJECTION BY POTASSIUM HEAT PIPE RADIATORS.

Technology keywords

Not reported

Agency intelligence

National Aeronautics and Space Administration

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