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Electronic Resource
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DOE NASA 0181; Report; December 1986.
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Library's review
ABSTRACT:
This report describes the development of a Brayton Engine/Generator Set for solar thermal to electrical power conversion, authorized under DOE/NASA Contract DEN3-181. The program objective was to design, fabricate, assemble, and test a small, hybrid, 20-kW Brayton-engine-powered generator
The original configuration of the generator set, known as the Mod 11011 System, incorporated the recuperated GTEC Model GTP36-51 gas turbine engine for the PCA prime mover. However, subsequent development of the GTEC Model AGT101 under DOE/ NASA Contract DEN3-167 led to selection of the regenerated AGTl0l as the power source for the PCA. Performance characteristics of the AGTl0l-powered PCA, thermally coupled to a solar collector (provided by Sanders Associates, Inc.) for operation in the solar mode, are presented in the report.
The PCA was successfully demonstrated in the fuel-only mode at the GTEC Phoenix, Arizona, facilities prior to its shipment to Sandia National Laboratory in Albuquerque, New Mexico, for installation and testing on a test bed concentrator ( parabolic dish). Considerations relative to Brayton-engine development using the all-ceramic AGTl0l when it becomes available, which would satisfy the DOE heat engine efficiency goal of 35 to 41 percent, are also discussed in the report.
This report describes the development of a Brayton Engine/Generator Set for solar thermal to electrical power conversion, authorized under DOE/NASA Contract DEN3-181. The program objective was to design, fabricate, assemble, and test a small, hybrid, 20-kW Brayton-engine-powered generator
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set. The generator set, also called a power conversion assembly (PCA), is designed to operate with solar energy obtained from a parabolic dish concentrator, 11 meters in diameter, or with fossil energy supplied by burning fuels in a combustor, or by a combination of both (hybrid mode). The PCA consists of the Brayton cycle engine, a solar collector, a belt-driven 20-kW generator, and the necessary control systems for automatic operation in solar-only, fuel-only, and hybrid modes to supply electrical power to a utility grid.The original configuration of the generator set, known as the Mod 11011 System, incorporated the recuperated GTEC Model GTP36-51 gas turbine engine for the PCA prime mover. However, subsequent development of the GTEC Model AGT101 under DOE/ NASA Contract DEN3-167 led to selection of the regenerated AGTl0l as the power source for the PCA. Performance characteristics of the AGTl0l-powered PCA, thermally coupled to a solar collector (provided by Sanders Associates, Inc.) for operation in the solar mode, are presented in the report.
The PCA was successfully demonstrated in the fuel-only mode at the GTEC Phoenix, Arizona, facilities prior to its shipment to Sandia National Laboratory in Albuquerque, New Mexico, for installation and testing on a test bed concentrator ( parabolic dish). Considerations relative to Brayton-engine development using the all-ceramic AGTl0l when it becomes available, which would satisfy the DOE heat engine efficiency goal of 35 to 41 percent, are also discussed in the report.
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