POWER SYSTEMS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$50,000.00
Award Year:
1983
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
647
Agency Tracking Number:
647
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
952 57th Street, Oakland, CA, 94608
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
GLENDON M. BENSON
PRINCIPAL INVESTIGATOR
() -
Business Contact:
() -
Research Institute:
n/a
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.

* information listed above is at the time of submission.

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