Author: Salvatore M. OritiPublisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Recent Stirling conversion technology developments and operational measurements at NASA Glenn Research Center
Author: Salvatore M. OritiRecent Stirling Conversion Technology Developments and Operational Measurements at Nasa Glenn Research Center
Author: Nasa Technical Reports Server (Ntrs)Publisher: BiblioGov
ISBN: 9781289206598
Category :
Languages : en
Pages : 24
Book Description
The NASA Technical Reports Servcr (NTRS) houses half a million publications that are a valuable means of information to researchers, teachers, students, and the general public. These documents are all aerospace related with much scientific and technical information created or funded by NASA. Some types of documents include conference papers, research reports, meeting papers, journal articles and more. This is one of those documents.
Extended Operation of Stirling Convertors at Nasa Glenn Research Center
Author: Salvatore M. OritiPublisher: BiblioGov
ISBN: 9781289151843
Category :
Languages : en
Pages : 26
Book Description
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.
Update on Extended Operation of Stirling Convertors in Thermal Vacuum at NASA Glenn Research Center
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721831524
Category :
Languages : en
Pages : 30
Book Description
The U.S. Department of Energy (DOE), Lockheed Martin Space Systems (LMSS), Infinia Corporation, and NASA Glenn Research Center (GRC) have been developing a Stirling Radioisotope Generator (SRG) for use as a power system on space science missions. This generator would make use of Stirling cycle energy conversion to achieve higher efficiency than currently used alternatives. A test has been initiated at GRC to demonstrate functionality of Stirling conversion in a thermal vacuum environment over an extended period of time. The test article resembles the configuration of the SRG, but was designed without the requirement of low mass. Throughout the 8700 cumulative hours of operation, modifications to the supporting hardware were required to attain the desired operating conditions. These modifications, the status of testing, and the data recorded will be discussed in this paper. Oriti, Salvatore M. Glenn Research Center NASA/TM-2006-214424, E-15701, AIAA Paper-2006-4062
Summary of Stirling convertor testing at NASA Glenn Research Center in support of Stirling radioisotope power system development
Author: Salvatore M. OritiExtended operation of Stirling convertors at NASA Glenn Research Center
Author: Salvatore M. OritiImpact Testing of a Stirling Converter's Linear Alternator
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721506613
Category :
Languages : en
Pages : 30
Book Description
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
Advanced Stirling Converter Dual Converter Controller Testing at NASA Glenn Research Center in the Radioisotope Power Systems System Integration Laboratory
Author: Gina M. DugalaPerformance of an Advanced Stirling Convertor Based on Heat Flux Sensor Measurements
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781794385139
Category : Science
Languages : en
Pages : 34
Book Description
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 highefficiency 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. Wilson, Dcott D. Glenn Research Center NASA/TM-2012-217731, AIAA Paper 2012-217731, E-18222
Stirling Convertor Regenerators
Author: Mounir B. IbrahimPublisher: CRC Press
ISBN: 143983007X
Category : Science
Languages : en
Pages : 475
Book Description
Stirling Convertor Regenerators addresses the latest developments and future possibilities in the science and practical application of Stirling engine regenerators and technology. Written by experts in the vanguard of alternative energy, this invaluable resource presents integral scientific details and design concepts associated with Stirling conve