Overview of NASA Lewis Research Center free-piston Stirling engine activities
Conference
·
· Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)
OSTI ID:5918614
An overview of the National Aeronautics and Space Administration (NASA) Lewis Research Center (LeRC) free-piston Stirling engine activities is presented. These include (1) a generic free-piston Stirling technology project being conducted to develop technologies generic to both space power and terrestrial heat pump applications in a cooperative, costshared effort with the Department of Energy (DOE)/Oak Ridge National Laboratory (ORNL); and (2) a free-piston Stirling space power technology feasibility demonstration project being conducted in support of the Defense Advanced Research Projects Agency (DARPA), DOE, NASA, SP-100 project. The generic technology effort includes extensive parametric testing of a 1 kW free-piston Stirling engine (RE-1000), development of a free-piston Stirling performance computer code, design and fabrication under contract of a hydraulic output modification for RE-1000 engine tests, and a 1000-hour endurance test, under contract, of a 3 kWe free-piston Stirling/alternator engine. The newly initiated space power technology feasibility demonstration effort addresses the capability of scaling a freepiston Stirling/alternator system to about 25 kWe; developing thermodynamic cycle efficiency greater than or equal to70 percent of Carnot at temperature ratios in the order of 1.5 to 2.0; achieving a power conversion unit specific weight of 6 kg/kWe; operating with noncontacting gas bearings; and dynamically balancing the system. Planned engine and component design and test efforts are described.
- Research Organization:
- National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio
- OSTI ID:
- 5918614
- Report Number(s):
- CONF-840804-
- Conference Information:
- Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330201* -- External Combustion Engines-- Stirling Cycle
ALTERNATORS
CARNOT CYCLE
EFFICIENCY
ELECTRIC GENERATORS
ENGINES
FEASIBILITY STUDIES
HEAT ENGINES
HEAT PUMPS
NASA
NATIONAL ORGANIZATIONS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
OPERATION
ORNL
PERFORMANCE TESTING
PLANNING
POWER RANGE 1-10 KW
RESEARCH PROGRAMS
STIRLING CYCLE
STIRLING ENGINES
TESTING
THERMODYNAMIC CYCLES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
330201* -- External Combustion Engines-- Stirling Cycle
ALTERNATORS
CARNOT CYCLE
EFFICIENCY
ELECTRIC GENERATORS
ENGINES
FEASIBILITY STUDIES
HEAT ENGINES
HEAT PUMPS
NASA
NATIONAL ORGANIZATIONS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
OPERATION
ORNL
PERFORMANCE TESTING
PLANNING
POWER RANGE 1-10 KW
RESEARCH PROGRAMS
STIRLING CYCLE
STIRLING ENGINES
TESTING
THERMODYNAMIC CYCLES
US AEC
US DOE
US ERDA
US ORGANIZATIONS