600 Volt Stretched Lens Array for Solar Electric Propulsion

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,956.00
Award Year:
2006
Program:
STTR
Phase:
Phase I
Contract:
NNC06CB43C
Award Id:
80767
Agency Tracking Number:
050170
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1077 Chisolm Trail, Keller, TX, 76248
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
108935420
Principal Investigator:
MarkO'Neill
Principal Investigator
(817) 379-0100
mjoneill@entechsolar.com
Business Contact:
MarkO'Neill
President
(817) 379-0100
mjoneill@entechsolar.com
Research Institute:
Auburn University
Michael Moriarty
231 Leach Center
Auburn University, AL, 36849
(334) 844-5894
Nonprofit college or university
Abstract
Over the past six years, ENTECH, Auburn, NASA, and other organizations have developed a new space photovoltaic array called the Stretched Lens Array (SLA), which offers unprecedented performance (e.g., >80 kW/cu.m. stowed power, >300 W/sq.m. areal power, and >300 W/kg specific power in the very near term) and cost-effectiveness (>75% savings in $/W compared to planar high-efficiency arrays). SLA achieves these outstanding attributes by employing flexible Fresnel lenses for optical concentration (e.g., 8X), thereby minimizing solar cell area, mass, and cost. SLA's small cell size (85% less cell area than planar high-efficiency arrays) also allows super-insulation and super-shielding of the solar cells to enable high-voltage operation and radiation hardness in the space environment. Recent studies show that SLA offers a 3-4X advantage over competing arrays in specific power for many NASA Exploration missions. ENTECH and Auburn, with Aerojet support, propose to develop and demonstrate a special version of SLA, specifically optimized for Solar Electric Propulsion (SEP) missions. This SLA for SEP will operate at 600 V to direct-drive an Aerojet Hall-effect electric thruster. Such a combination of an ultra-light, high-voltage, radiation-hard SLA with a high-specific-impulse electric thruster will have widespread applicability to many NASA, DOD, and commercial missions.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government