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Basic Research on Solar Stirling Power Technology for Future Space Applications
Technical Paper
1999-01-2681
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A semi free-piston Stirling engine alternator, called NALSEM500, has been experimentally studied since April 1994, as part of a space solar power technology program in NAL (National Aerospace Laboratory). The Stirling alternator is one of candidates for future space power applications, and will be integrated with the solar cavity receiver subsystem, having both Na heat pipes and thermal energy storage. Through a series of preliminary bench tests, it was found that the efficiency of the linear alternator was significantly low as compared to our initial design. To improve the alternator performance, some design modifications of the magnet assembly and stator core have been made. As a result, the thermodynamic efficiency of 33% and system efficiency of 20% was obtained.
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Authors
Citation
Hoshino, T., Fujihara, T., and Eguchi, K., "Basic Research on Solar Stirling Power Technology for Future Space Applications," SAE Technical Paper 1999-01-2681, 1999, https://doi.org/10.4271/1999-01-2681.Also In
References
- Eguchi, K. et al. Design and Analysis for Space Heat Pipe Stirling Alternator of NALSEM 500 Proc. 19th ISTS 1994 493 499
- Hoshino, T. et al. Benchmark Testing of Space Stirling Engine - NALSEM 500 7th ICSC 1995
- Nakamura, Y. et al. Linear Alternator Design for NALSEM Stirling Engines Proc. 6th ISEC Rotterdam, Netherlands May 1993
- Redlich Robert A Summary of Twenty Years Experience with Linear Motors and Alternators Sunpower, Inc. 1996
- Boldea, I. Nasar, S. Linear Electric Actuators and Generators Cambridge Univ. Press