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Book Design and Fabrication of the Brayton Rotating Unit

Download or read book Design and Fabrication of the Brayton Rotating Unit written by J. E. Davis and published by . This book was released on 1972 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brayton rotating unit (BRU), operating on a gas bearing system, has been designed, fabricated, and demonstrated for use in a closed Brayton cycle space power conversion system. The BRU uses a binary mixture of xenon and helium (molecular weight, 83.8) as the cycle working fluid and bearing lubricating medium and was designed to produce from 2.25 to 10.5 kw sub e of 1200 Hz three-phase electrical power. The single-shaft rotating assembly operates at a design speed of 36,000 rpm and comprises a radial single-stage compressor, a four-pole Rice alternator rotor, and a radial inflow turbine. Four units, a dynamic simulator and three component research packages, were supplied to the NASA Lewis Research Center for performance testing and further development.

Book Design and Fabrication of Gas Bearings for Brayton Cycle Rotating Unit

Download or read book Design and Fabrication of Gas Bearings for Brayton Cycle Rotating Unit written by and published by . This book was released on 1973 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Design Fabrication and Performance of Foil Journal Bearing for the Brayton Rotating Unit

Download or read book Design Fabrication and Performance of Foil Journal Bearing for the Brayton Rotating Unit written by Lazar Licht and published by . This book was released on 1973 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foil bearings were designed and manufactured to replace pivoted-shoe journal bearings in an existing Brayton Cycle turbo-alternator-compressor. The design of this unconventional rotor support was accomplished within the constraints and space limitations imposed by the present machine, and the substitution of foil bearings was effected without changes or modification other machine components. A housing and a test rig were constructed to incorporate the new foil-bearing support into a unified assemble with an air-driven rotor and the gimbal-mounted thrust bearing, seals, and shrouds of an actual Brayton Rotating Unit. The foil bearing required no external pressure source, and stable self-acting rotation was achieved at all speeds up to 43,200 rpm. Excellent wipe-wear characteristics of the foil bearing permitted well over 1000 start-stop cycles with no deterioriation of performance in the entire speed range.

Book Design and Fabrication of a High performance Brayton Cycle Radial flow Gas Generator

Download or read book Design and Fabrication of a High performance Brayton Cycle Radial flow Gas Generator written by AiResearch Manufacturing Company of Arizona and published by . This book was released on 1967 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Technical Memorandum

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1978 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Inspection of Two Brayton Rotating Units After Extensive Endurance Testing

Download or read book Inspection of Two Brayton Rotating Units After Extensive Endurance Testing written by and published by . This book was released on 1976 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Program Plan for the Brayton Isotope Power System Phase I Design Fabrication and Test of the Brayton Isotope Power System

Download or read book Program Plan for the Brayton Isotope Power System Phase I Design Fabrication and Test of the Brayton Isotope Power System written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase I of an overall program for the development of a 500 to 2000 W(e) (EOM), 7-y life, power system for space vehicles is discussed. The system uses a closed Brayton dynamic system to convert energy from an isotope heat source at a net efficiency greater than 25 percent. This first phase, a 35-month effort, is for the conceptual design of a 1300 W(e), 450 lb flight system and the design, fabrication, and test of a ground demonstration system. The flight system will use, for the baseline design, two of the multihundred-watt (MHW) heat sources being developed. The Ground Demonstration System will simulate, as closely as possible, the Brayton Isotope Power Flight System and will utilize components and technology being developed for the Mini-Brayton rotating unit, recuperator and heat source assembly, respectively. The Ground Demonstration System includes a performance test and a 1000-h endurance test.

Book Design Fabrication and Performance of Foil Journal Bearing for the Brayton Rotating Unit

Download or read book Design Fabrication and Performance of Foil Journal Bearing for the Brayton Rotating Unit written by Lazar Licht and published by . This book was released on 1973 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foil bearings were designed and manufactured to replace pivoted-shoe journal bearings in an existing Brayton Cycle turbo-alternator-compressor. The design of this unconventional rotor support was accomplished within the constraints and space limitations imposed by the present machine, and the substitution of foil bearings was effected without changes or modification other machine components. A housing and a test rig were constructed to incorporate the new foil-bearing support into a unified assemble with an air-driven rotor and the gimbal-mounted thrust bearing, seals, and shrouds of an actual Brayton Rotating Unit. The foil bearing required no external pressure source, and stable self-acting rotation was achieved at all speeds up to 43,200 rpm. Excellent wipe-wear characteristics of the foil bearing permitted well over 1000 start-stop cycles with no deterioriation of performance in the entire speed range.

Book Program Plan for the Brayton Isotope Power System Phase I Design Fabrication and Test of the Brayon Isotope Power System

Download or read book Program Plan for the Brayton Isotope Power System Phase I Design Fabrication and Test of the Brayon Isotope Power System written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This program plan covers Phase I of an overall program for the development of a 500 to 2000 W/sub e/ (EOM), 7-year life, power system for space vehicles. The system uses a closed Brayton dynamic system to convert energy from an isotope heat source at a net efficiency greater than 25 percent. This first phase, a 35-months effort, is for the conceptual design of a 1300 W/sub e/, 450 lb flight system and the design, fabrication, and test of a ground demonstration system. The flight system will use, for the baseline design, two of the multihundred-watt (MHW) heat sources being developed for the ERDA by the General Electric Company. The Ground Demonstration System will simulate, as closely as possible, the Brayton Isotope Power Flight System and will utilize components and technology being developed by NASA for the Mini-Brayton rotating unit, recuperator and heat source assembly, respectively. The Ground Demonstration System includes a performance test and a 1000-hour endurance test.

Book Modern Tribology Handbook Two Volume Set

Download or read book Modern Tribology Handbook Two Volume Set written by Bharat Bhushan and published by CRC Press. This book was released on 2000-12-28 with total page 1760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent research has led to a deeper understanding of the nature and consequences of interactions between materials on an atomic scale. The results have resonated throughout the field of tribology. For example, new applications require detailed understanding of the tribological process on macro- and microscales and new knowledge guides the rational

Book Inventory of energy research and development 1973 1975

Download or read book Inventory of energy research and development 1973 1975 written by Oak Ridge National Laboratory and published by . This book was released on 1976 with total page 1430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Inventory of Energy Research and Development 1973 1975 Indexes and appendices

Download or read book Inventory of Energy Research and Development 1973 1975 Indexes and appendices written by Oak Ridge National Laboratory and published by . This book was released on 1976 with total page 1462 pages. Available in PDF, EPUB and Kindle. Book excerpt: