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Status Of Brayton Cycle Power Conversion Development At Nasa Grc
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721293247 Total Pages :26 pages Book Rating :4.2/5 (932 download)
Book Synopsis Status of Brayton Cycle Power Conversion Development at NASA Grc by : National Aeronautics and Space Administration (NASA)
Download or read book Status of Brayton Cycle Power Conversion Development at NASA Grc written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Glenn Research Center (GRC) is pursuing the development of Brayton cycle power conversion for various NASA initiatives. Brayton cycle power systems offer numerous advantages for space power generation including high efficiency, long life, high maturity, and broad scalability. Candidate mission applications include surface rovers and bases, advanced propulsion vehicles, and earth orbiting satellites. A key advantage is the ability for Brayton converters to span the wide range of power demands of future missions from several kilowatts to multi-megawatts using either solar, isotope, or reactor heat sources. Brayton technology has been under development by NASA since the early 1960's resulting in engine prototypes in the 2 to 15 kW-class that have demonstrated conversion efficiency of almost 30% and cumulative operation in excess of 40,000 hours. Present efforts at GRC are focusing on a 2 kW testbed as a proving ground for future component advances and operational strategies, and a 25 kW engine design as a modular building block for 100 kW-class electric propulsion and Mars surface power applications. Mason, Lee S. and Shaltens, Richard K. and Dolce, James L. and Cataldo, Robert L. Glenn Research Center NASA/TM-2002-211304, E-13108, NAS 1.15:211304
Book Synopsis Status of Brayton Cycle Power Conversion Development at NASA GRC by :
Download or read book Status of Brayton Cycle Power Conversion Development at NASA GRC written by and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Verification of a 2 KWe Closed-Brayton-cycle Power Conversion System Mechanical Dynamics Model by :
Download or read book Verification of a 2 KWe Closed-Brayton-cycle Power Conversion System Mechanical Dynamics Model written by and published by . This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Closed Brayton Cycle Power by : National Aeronautics and Space Administration (NASA)
Download or read book Closed Brayton Cycle Power written by National Aeronautics and Space Administration (NASA) and published by . This book was released on 2010-11-01 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Closed Brayton Cycle power conversion system has been developed to support the NASA fission surface power program. The goal is to provide electricity from a small nuclear reactor heat source for surface power production for lunar and Mars environments. The selected media for a heat source is NaK 78 with water as a cooling source. The Closed Brayton Cycle power was selected to be 12 kWe output from the generator terminals. A heat source NaK temperature of 850 K +/-25 K was selected. The cold source water was selected at 375 K +/-25 K. A vacuum radiation environment of 200 K is specified for environmental operation. The prioritized goals for the power conversion system are contained in the NASA specification as follows: * Close relevance to future flight designs, including the potential for 8 year service life * Credible development path and maturation approach exist to achieve TRL 6 by FY 2012 with a reasonable cost * Low development cost and risk * Design extensible to Mars (materials and design strategies compatible with mars environment) * High thermal-to-electric efficiency * Minimum complexity * Low mass and volume The major components of the system are the power converter, the power controller, and the top level data acquisition and control unit. The power converter with associated sensors resides in the vacuum radiation environment. The power controller and data acquisition system reside in an ambient laboratory environment. Signals and power are supplied across the pressure boundary electrically with hermetic connectors installed on the vacuum vessel. System level analyses were performed on working fluids, cycle design parameters, heater and cooling temperatures, and heat exchanger options that best meet the needs of the power converter specification. The goal is to provide a cost effective system that has high thermal-to-electric efficiency in a compact, lightweight package. A system level trade study was performed to optimize these competing factors in order to specify the various system components. The power converter is a rotating turbine-alternator-compressor (TAC), NaK heater, gasto- gas recuperator, and gas-to-water cooler.
Book Synopsis Closed Brayton Cycle Power Conversion Unit for Fission Surface Power, Phase I Final Report by : Robert L. Fuller
Download or read book Closed Brayton Cycle Power Conversion Unit for Fission Surface Power, Phase I Final Report written by Robert L. Fuller and published by . This book was released on 2010 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721831340 Total Pages :30 pages Book Rating :4.8/5 (313 download)
Book Synopsis Performance and Operational Characteristics for a Dual Brayton Space Power System with Common Gas Inventory by : National Aeronautics and Space Administration (NASA)
Download or read book Performance and Operational Characteristics for a Dual Brayton Space Power System with Common Gas Inventory written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides an analytical evaluation on the operation and performance of a dual Brayton common gas system. The NASA Glenn Research Center in-house computer program Closed Cycle System Simulation (CCSS) was used to construct a model of two identical 50 kWe-class recuperated closed-Brayton-cycle (CBC) power conversion units that share a common gas inventory and single heat source. As operating conditions for each CBC change, the total gas inventory is redistributed between the two units and overall system performance is affected. Several steady-state off-design operating points were analyzed by varying turbine inlet temperature and turbo-alternator shaft rotational speed to investigate the interaction of the two units. Johnson, Paul K. and Mason, Lee S. Glenn Research Center NASA/TM-2006-214393, E-15671, AIAA Paper-2006-4167
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721828159 Total Pages :32 pages Book Rating :4.8/5 (281 download)
Book Synopsis Experimental Validation of a Closed Brayton Cycle System Transient Simulation by : National Aeronautics and Space Administration (NASA)
Download or read book Experimental Validation of a Closed Brayton Cycle System Transient Simulation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brayton Power Conversion Unit (BPCU) located at NASA Glenn Research Center (GRC) in Cleveland, Ohio was used to validate the results of a computational code known as Closed Cycle System Simulation (CCSS). Conversion system thermal transient behavior was the focus of this validation. The BPCU was operated at various steady state points and then subjected to transient changes involving shaft rotational speed and thermal energy input. These conditions were then duplicated in CCSS. Validation of the CCSS BPCU model provides confidence in developing future Brayton power system performance predictions, and helps to guide high power Brayton technology development. Johnson, Paul K. and Hervol, David S. Glenn Research Center NASA/CR-2006-214239, E-15485
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722960377 Total Pages :164 pages Book Rating :4.9/5 (63 download)
Book Synopsis Brayton Power Conversion System Parametric Design Modelling for Nuclear Electric Propulsion by : National Aeronautics and Space Administration (NASA)
Download or read book Brayton Power Conversion System Parametric Design Modelling for Nuclear Electric Propulsion written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The parametrically based closed Brayton cycle (CBC) computer design model was developed for inclusion into the NASA LeRC overall Nuclear Electric Propulsion (NEP) end-to-end systems model. The code is intended to provide greater depth to the NEP system modeling which is required to more accurately predict the impact of specific technology on system performance. The CBC model is parametrically based to allow for conducting detailed optimization studies and to provide for easy integration into an overall optimizer driver routine. The power conversion model includes the modeling of the turbines, alternators, compressors, ducting, and heat exchangers (hot-side heat exchanger and recuperator). The code predicts performance to significant detail. The system characteristics determined include estimates of mass, efficiency, and the characteristic dimensions of the major power conversion system components. These characteristics are parametrically modeled as a function of input parameters such as the aerodynamic configuration (axial or radial), turbine inlet temperature, cycle temperature ratio, power level, lifetime, materials, and redundancy. Ashe, Thomas L. and Otting, William D. Unspecified Center BRAYTON CYCLE; CLOSED CYCLES; NUCLEAR ELECTRIC PROPULSION; PROPULSION SYSTEM CONFIGURATIONS; PROPULSION SYSTEM PERFORMANCE; AC GENERATORS; AERODYNAMIC CONFIGURATIONS; AXIAL FLOW TURBINES; COMPRESSORS; HEAT EXCHANGERS; INLET TEMPERATURE; REDUNDANCY; REGENERATORS; TEMPERATURE RATIO...
Book Synopsis Proceedings of the ... Intersociety Energy Conversion Engineering Conference by :
Download or read book Proceedings of the ... Intersociety Energy Conversion Engineering Conference written by and published by . This book was released on 2002 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Technology and Applications International Forum 2007 by : Mohamed S. El-Genk
Download or read book Space Technology and Applications International Forum 2007 written by Mohamed S. El-Genk and published by AIP Conference Proceedings (Nu. This book was released on 2007 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of STAIF-2007 feature a broad spectrum of topics on. These topics span the range from basic research to the most recent technology advances and hardware development and testing. The proceedings will be of particular interest to program managers, practicing engineers, academicians, graduate students, system designers, and researchers interested in the fields of space technology and space science.
Download or read book Proceedings ICT'02 written by and published by . This book was released on 2002 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Engineering for Gas Turbines and Power by :
Download or read book Journal of Engineering for Gas Turbines and Power written by and published by . This book was released on 2008 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Technology and Applications International Forum - STAIF 2005 by : Mohamed S. El-Genk
Download or read book Space Technology and Applications International Forum - STAIF 2005 written by Mohamed S. El-Genk and published by American Institute of Physics. This book was released on 2005-03-03 with total page 1512 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3rd Symposium on Space Colonization. 2nd Symposium on New Frontiers and Future Concepts, Albuquerque, New Mexico, 13-17 February 2005
Download or read book Research & Technology 2002 written by and published by DIANE Publishing. This book was released on with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Technology and Applications International Forum - STAIF 2004 by : American Institute of Physics
Download or read book Space Technology and Applications International Forum - STAIF 2004 written by American Institute of Physics and published by American Institute of Physics. This book was released on 2004-02-18 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Albuquerque, New Mexico, 8-11 February 2004
Book Synopsis Recent GRC Aerospace Technologies Applicable to Terrestrial Energy Systems by :
Download or read book Recent GRC Aerospace Technologies Applicable to Terrestrial Energy Systems written by and published by . This book was released on 2000 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research & Technology 2004 written by and published by DIANE Publishing. This book was released on with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
