High Specific Power Multiple-Cylinder Alpha Free-Piston Stirling Engine

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,440.00
Award Year:
2007
Program:
SBIR
Phase:
Phase II
Contract:
NNC07CA21C
Award Id:
77685
Agency Tracking Number:
053157
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
182 Mill Street, Athens, OH, 45701
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Seon-Young Kim
Principal Investigator
(740) 592-0420
kim@sunpower.com
Business Contact:
Faith Knutsen
Business Official
(740) 594-2221
knutsen@sunpower.com
Research Institute:
n/a
Abstract
The proposed effort will result in a design of a 30 kWe dual opposed alpha free-piston Stirling engine power conversion system for space applications, and provide proof of concept by the operation of a practical alpha engine. The stepped piston three-cylinder alpha FPSE has shown the highest efficiency and excellent specific power among various engines studied in Phase I. In addition, the three phase electric output of a three-cylinder machine is naturally better in the system context. Thus a high efficiency 15 kWe stepped three-cylinder alpha FPSE will be designed for a 30 kWe dual opposed operation by having two engines connected for perfect balancing in all harmonics. The program minimizes the development risks by combining proven technologies of Sunpower and Global Cooling Manufacturing Inc. (GCM). GCM has achieved the successful operation of a four-cylinder alpha free-piston Stirling cooler.

* 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