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Author : Salvatore Oriti
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (86 download)
Download or read book Advanced stirling convertor (ASC-E2) performance testing at NASA Glenn Research Center written by Salvatore Oriti and published by . This book was released on 2011 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nasa Technical Reports Server (Ntrs)
Publisher : BiblioGov
ISBN 13 : 9781289169725
Total Pages : 24 pages
Book Rating : 4.1/5 (697 download)
Download or read book Advanced Stirling Convertor Performance Testing at Nasa Glenn Research Center written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-07 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) has been supporting development of the Advanced Stirling Radioisotope Generator (ASRG) since 2006. A key element of the ASRG Project is providing life, reliability, and performance testing of the Advanced Stirling Convertor (ASC). For this purpose, four pairs of ASCs capable of operating to 850 C and designated with the model number ASC-E2, were delivered by Sunpower of Athens, Ohio, to GRC in 2010. The ASC-E2s underwent a series of tests that included workmanship vibration testing, performance mapping, and extended operation. Workmanship vibration testing was performed following fabrication of each convertor to verify proper hardware build. Performance mapping consisted of operating each convertor at various conditions representing the range expected during a mission. Included were conditions representing beginning-of-mission (BOM), end-of-mission (EOM), and fueling. This same series of tests was performed by Sunpower prior to ASC-E2 delivery. The data generated during the GRC test were compared to performance before delivery. Extended operation consisted of a 500-hr period of operation with conditions maintained at the BOM point. This was performed to demonstrate steady convertor performance following performance mapping. Following this initial 500-hr period, the ASC-E2s will continue extended operation, controller development and special durability testing, during which the goal is to accumulate tens of thousands of hours of operation. Data collected during extended operation will support reliability analysis. Performance data from these tests is summarized in this paper.
Author : Salvatore M. Oriti
Publisher : BiblioGov
ISBN 13 : 9781289151843
Total Pages : 26 pages
Book Rating : 4.1/5 (518 download)
Download or read book Extended Operation of Stirling Convertors at Nasa Glenn Research Center written by Salvatore M. Oriti and published by BiblioGov. This book was released on 2013-07 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: NASA Glenn Research Center (GRC) has been supporting development of free-piston Stirling conversion technology for spaceflight electrical power generation since 1999. GRC has also been supporting the development of the Advanced Stirling Radioisotope Generator (ASRG) since 2006. A key element of the ASRG project is providing life, reliability, and performance data for the Advanced Stirling Convertor (ASC). The Thermal Energy Conversion branch at GRC is conducting extended operation of several free-piston Stirling convertors. The goal of this effort is to generate long-term performance data (tens of thousands of hours) on multiple units to build a life and reliability database. Currently, GRC is operating 18 convertors. This hardware set includes Technology Demonstration Convertors (TDCs) from Infinia Corporation, of which one pair (TDCs #13 and #14) has accumulated over 60,000 hr (6.8 years) of operation. Also under test are various Sunpower, Inc. convertors that were fabricated during the ASC development activity, including ASC-0, ASC-E (including those in the ASRG engineering unit), and ASC-E2. The ASC-E2s also completed, or are in progress of completing workmanship vibration testing, performance mapping, and extended operation. Two ASC-E2 units will also be used for durability testing, during which components will be stressed to levels above nominal mission usage. Extended operation data analyses from these tests are covered in this paper.
Author : Zachary D. Williams
Publisher : BiblioGov
ISBN 13 : 9781289101879
Total Pages : 24 pages
Book Rating : 4.1/5 (18 download)
Download or read book Advanced Stirling Convertor Characterization Testing written by Zachary D. Williams and published by BiblioGov. This book was released on 2013-06 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Testing has been conducted on Advanced Stirling Convertor (ASC-E2) convertors at NASA Glenn Research Center in support of the Advanced Stirling Radioisotope Generator (ASRG) Project. This testing has been conducted to understand sensitivities of convertor parameters due to environmental and operational changes during operation of the ASRG in missions to space. This paper summarizes test results and explains in terms of operation of the ASRG during space missions.
Author : Zachary D. Williams
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (857 download)
Download or read book Advanced Stirling Convertor (ASC-E2) characterization testing written by Zachary D. Williams and published by . This book was released on 2012 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gina M. Dugala
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (944 download)
Download or read book Advanced Stirling Convertor Dual Convertor Controller Testing at NASA Glenn Research Center in the Radioisotope Power Systems System Integration Laboratory written by Gina M. Dugala and published by . This book was released on 2015 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309141761
Total Pages : 69 pages
Book Rating : 4.3/5 (91 download)
Download or read book Radioisotope Power Systems written by National Research Council and published by National Academies Press. This book was released on 2009-07-14 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacecraft require electrical energy. This energy must be available in the outer reaches of the solar system where sunlight is very faint. It must be available through lunar nights that last for 14 days, through long periods of dark and cold at the higher latitudes on Mars, and in high-radiation fields such as those around Jupiter. Radioisotope power systems (RPSs) are the only available power source that can operate unconstrained in these environments for the long periods of time needed to accomplish many missions, and plutonium-238 (238Pu) is the only practical isotope for fueling them. Plutonium-238 does not occur in nature. The committee does not believe that there is any additional 238Pu (or any operational 238Pu production facilities) available anywhere in the world.The total amount of 238Pu available for NASA is fixed, and essentially all of it is already dedicated to support several pending missions-the Mars Science Laboratory, Discovery 12, the Outer Planets Flagship 1 (OPF 1), and (perhaps) a small number of additional missions with a very small demand for 238Pu. If the status quo persists, the United States will not be able to provide RPSs for any subsequent missions.
Author : Gina M. Dugala
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (124 download)
Download or read book Advanced Stirling Converter Dual Converter Controller Testing at NASA Glenn Research Center in the Radioisotope Power Systems System Integration Laboratory written by Gina M. Dugala and published by . This book was released on 2015 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott D. Wilson
Publisher : BiblioGov
ISBN 13 : 9781289022877
Total Pages : 24 pages
Book Rating : 4.0/5 (228 download)
Download or read book Performance of an Advanced Stirling Convertor Based on Heat Flux Sensor Measurements written by Scott D. Wilson and published by BiblioGov. This book was released on 2013-06 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Department of Energy (DOE) and Lockheed Martin Space Systems Company (LMSSC) have been developing the Advanced Stirling Radioisotope Generator (ASRG) for use as a power system for space science missions. This generator would use two high-efficiency Advanced Stirling Convertors (ASCs), developed by Sunpower, Inc., and NASA Glenn Research Center. The ASCs convert thermal energy from a radioisotope heat source into electricity. As part of ground testing of these ASCs, different operating conditions are used to simulate expected mission conditions. These conditions require achieving a particular operating frequency, hot-end and cold-end temperatures, and specified electrical power output for a given heat input. It is difficult to measure heat input to Stirling convertors due to the complex geometries of the hot components, temperature limits of sensor materials, and invasive integration of sensors. A thin-film heat flux sensor was used to directly measure heat input to an ASC. The effort succeeded in designing and fabricating unique sensors, which were integrated into a Stirling convertor ground test and exposed to test temperatures exceeding 700 C in air for 10,000 hr. Sensor measurements were used to calculate thermal efficiency for ASC-E (Engineering Unit) #1 and #4. The post-disassembly condition of the sensors is also discussed.
Author : Salvatore M. Oriti
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (95 download)
Download or read book Performance Measurement of Advanced Stirling Convertors (ASC-E3) written by Salvatore M. Oriti and published by . This book was released on 2013 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Salvatore M. Oriti
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (95 download)
Download or read book Summary of Stirling convertor testing at NASA Glenn Research Center in support of Stirling radioisotope power system development written by Salvatore M. Oriti and published by . This book was released on 2013 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jeffrey G. Schreiber
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (671 download)
Download or read book Summary of Stirling Convertor Testing at NASA Glenn Research Center written by Jeffrey G. Schreiber and published by . This book was released on 2006 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wayne A. Wong
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (957 download)
Download or read book Advanced Stirling Convertor (ASC) Technology Maturation written by Wayne A. Wong and published by . This book was released on 2016 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David W. Meer
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (124 download)
Download or read book Advanced Stirling Convertor Durability Testing :. written by David W. Meer and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Salvatore M. Oriti
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (851 download)
Download or read book Test hardware design for flightlike operation of Advanced Stirling Convertors (ASC-E3) written by Salvatore M. Oriti and published by . This book was released on 2012 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David W. Meer
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (851 download)
Download or read book Advanced Stirling Convertor durability testing written by David W. Meer and published by . This book was released on 2012 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721506613
Total Pages : 30 pages
Book Rating : 4.5/5 (66 download)
Download or read book Impact Testing of a Stirling Converter's Linear Alternator written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-19 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Department of Energy (DOE), in conjunction with the NASA John H. Glenn Research Center and Stirling Technology Company, are currently developing a Stirling convertor for a Stirling Radioisotope Generator (SRG). NASA Headquarters and DOE have identified the SRG for potential use as an advanced spacecraft power system for future NASA deep-space and Mars surface missions. Low-level dynamic impact tests were conducted at NASA Glenn Research Center's Structural Dynamics Laboratory as part of the development of this technology. The purpose of this test was to identify dynamic structural characteristics of the Stirling Technology Demonstration Convertor (TDC). This paper addresses the test setup, procedure, and results of the impact testing conducted on the Stirling TDC in May 2001. Suarez, Vicente J. and Goodnight, Thomas W. and Hughes, William O. and Samorezov, Sergey Glenn Research Center NASA/TM-2002-211342, NAS 1.15:211342, E-13156
