Advanced Stirling conversion systems for terrestrial applications
Sandia National Laboratories (SNLA) is developing heat engines for terrestrial Solar distributed Heat Receivers. SNLA has identified the Stirling to be one of the most promising candidates for the terrestrial applications. The free-piston Stirling engine (FPSE) has the potential to meet the DOE goals for both performance and cost. Free-piston Stirling activities which are directed toward a dynamic power source for the space application are being conducted. Space power system requirements include high efficiency, very long life, high reliability and low vibration. The FPSE has the potential for future high power space conversion systems, either solar or nuclear powered. Generic free-piston technology is currently being developed for use with a residential heat pump under an Interagency Agreement. Also, an overview is presented of proposed conceptual designs for the Advanced Stirling Conversion System (ASCS) using a free-piston Stirling engine and a liquid metal heat pipe receiver. Power extraction includes both a linear alternator and hydraulic output capable of delivering approximately 25 kW of electrical power to the electric utility grid. Target cost of the engine/alternator is 300 dollars per kilowatt at a manufacturing rate of 10,000 units per year. The design life of the ASCS is 60,000 h (30 y) with an engine overhaul at 40,000 h (20 y). Also discussed are the key features and characteristics of the ASCS conceptual designs.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- DOE Contract Number:
- AT04-85AL33408
- OSTI ID:
- 6785497
- Report Number(s):
- DOE/NASA/33408-1; NASA-TM-88897; CONF-870307-8; ON: DE87004216
- Country of Publication:
- United States
- Language:
- English
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140703* -- Solar Thermal Power Systems-- Distributed Collector
42 ENGINEERING
425003 -- Engineering-- Power Cycles-- Stirling-- (1980-)
ALTERNATORS
COST ESTIMATION
DISTRIBUTED COLLECTOR POWER PLANTS
ELECTRIC GENERATORS
ELECTRONIC EQUIPMENT
ENERGY TRANSFER
ENGINES
EQUIPMENT
FLUID MECHANICS
HEAT ENGINES
HEAT PUMPS
HEAT TRANSFER
HYDRAULICS
MECHANICS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
PERFORMANCE
POWER PLANTS
POWER SUPPLIES
RELIABILITY
SOLAR CONCENTRATORS
SOLAR EQUIPMENT
SOLAR POWER PLANTS
SOLAR THERMAL POWER PLANTS
SPACECRAFT POWER SUPPLIES
STIRLING ENGINES
THERMAL POWER PLANTS
USES