Assessment of the Free-Piston Stirling Convertor as a Long Life Power Convertor for Space PDF Download
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Languages : en
Pages : 16
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Languages : en
Pages : 16
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Author: Jeffrey G. Schreiber
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Category :
Languages : en
Pages : 9
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Author: Jeffrey G. Schreiber
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Category :
Languages : en
Pages : 18
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Free-piston Stirling technology efforts in the past typically were intended to address power needs in the multi-kilowatt range. The Stirling power option was attractive primarily because of the high conversion efficiency and potential for long life. In recent years, several technology efforts have focused on the free-piston Stirling power d convertor for space power applications, however the more recent efforts are intended to provide power at levels far below one kilowatt. Through a variety of projects funded by both NASA and DOE, the free-piston Stirling convertor technology has successfully demonstrated high efficiency and long life. Other areas of concern, such as control of multi-convertor systems, and vibration reduction have also been addressed. Efforts are being initiated to address issues such as electro-magnetic interference (EMI), radiation tolerance of organic materials, and the ability to operate through launch loads and survive with integrity. The status of the technology in these areas will be briefly discussed in this paper.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781719370363
Category :
Languages : en
Pages : 38
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Free-piston Stirling power conversion has been considered a candidate for radioisotope power systems for space for more than a decade. Prior to the free-piston Stirling architecture, systems were designed with kinematic Stirling engines with rotary alternators to convert heat to electricity. These systems were proposed with lightly loaded linkages to achieve the necessary life. When the free-piston configuration was initially proposed, it was thought to be attractive due to the relatively high conversion efficiency, acceptable mass, and the potential for long life and high reliability. These features have consistently been recognized by teams that have studied technology options for radioisotope power systems. Since free-piston Stirling power conversion was first considered for space power applications, there have been major advances in three general areas of development: demonstration of life and reliability, the success achieved by Stirling cryocoolers in flight, and the overall developmental maturity of the technology for both flight and terrestrial applications. Based on these advances, free-piston Stirling convertors are currently being developed for a number of terrestrial applications. They commonly operate with the power, efficiency, life, and reliability as intended, and much of the development now centers on system integration. This paper will summarize the accomplishments of free-piston Stirling power conversion technology over the past decade, review the status, and discuss the challenges that remain. Schreiber, Jeffrey G. Glenn Research Center FREE-PISTON ENGINES; NUCLEAR ELECTRIC POWER GENERATION; COMPUTATIONAL FLUID DYNAMICS; POWER CONVERTERS; TECHNOLOGY UTILIZATION; RADIOISOTOPE HEAT SOURCES; MECHANICAL ENGINEERING; PISTON ENGINES; SYSTEMS INTEGRATION; RELIABILITY ANALYSIS; SOLAR CELLS; AC GENERATORS; LINKAGES; PANELS; CRYOGENIC COOLING; FAULT TOLERANCE; ORGANIC MATERIALS; LINEAR ALTERNATORS; MAGNETS; SPACECRAFT POWER SUPPLIES
Author: Jeffrey G. Schreiber
Publisher: BiblioGov
ISBN: 9781289237400
Category :
Languages : en
Pages : 44
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Free-piston Stirling power conversion has been considered a candidate for radioisotope power systems for space for more than a decade. Prior to the free-piston Stirling architecture, systems were designed with kinematic Stirling engines with rotary alternators to convert heat to electricity. These systems were proposed with lightly loaded linkages to achieve the necessary life. When the free-piston configuration was initially proposed, it was thought to be attractive due to the relatively high conversion efficiency, acceptable mass, and the potential for long life and high reliability. These features have consistently been recognized by teams that have studied technology options for radioisotope power systems. Since free-piston Stirling power conversion was first considered for space power applications, there have been major advances in three general areas of development: demonstration of life and reliability, the success achieved by Stirling cryocoolers in flight, and the overall developmental maturity of the technology for both flight and terrestrial applications. Based on these advances, free-piston Stirling convertors are currently being developed for a number of terrestrial applications. They commonly operate with the power, efficiency, life, and reliability as intended, and much of the development now centers on system integration. This paper will summarize the accomplishments of free-piston Stirling power conversion technology over the past decade, review the status, and discuss the challenges that remain.
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Category :
Languages : en
Pages : 16
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Category :
Languages : en
Pages : 14
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Category :
Languages : en
Pages : 18
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Category : Aeronautics
Languages : en
Pages : 492
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