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Design Considerations For Lightweight Space Radiators Based On Fabrication And Test Experience With A Carboncarbon Composite Prototype Heat Pipe
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Book Synopsis Design considerations for lightweight space radiators based on fabrication and test experience with a carboncarbon composite prototype heat pipe by :
Download or read book Design considerations for lightweight space radiators based on fabrication and test experience with a carboncarbon composite prototype heat pipe written by and published by DIANE Publishing. This book was released on with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design Considerations for Lightweight Space Radiators Based on Fabrication and Test Experience with a Carbon-carbon Composite Prototype Heat Pipe by :
Download or read book Design Considerations for Lightweight Space Radiators Based on Fabrication and Test Experience with a Carbon-carbon Composite Prototype Heat Pipe written by and published by . This book was released on 2002 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781724093011 Total Pages :28 pages Book Rating :4.0/5 (93 download)
Book Synopsis Design Considerations for Lightweight Space Radiators Based on Fabrication and Test Experience with a Carbon-Carbon Composite Prototype Heat Pipe. Rev by : National Aeronautics and Space Adm Nasa
Download or read book Design Considerations for Lightweight Space Radiators Based on Fabrication and Test Experience with a Carbon-Carbon Composite Prototype Heat Pipe. Rev written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-27 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the design implications for spacecraft radiators made possible by the successful fabrication and proof-of-concept testing of a graphite-fiber-carbon-matrix composite (i.e., carbon-carbon (C-C)) heat pipe. The prototype heat pipe, or space radiator element, consists of a C-C composite shell with integrally woven fins. It has a thin-walled furnace-brazed metallic (Nb-1%Zr) liner with end caps for containment of the potassium working fluid. A short extension of this liner, at increased wall thickness beyond the C-C shell, forms the heat pipe evaporator section which is in thermal contact with the radiator fluid that needs to be cooled. From geometric and thermal transport properties of the C-C composite heat pipe tested, a specific radiator mass of 1.45 kg/sq m can be derived. This is less than one-fourth the specific mass of present day satellite radiators. The report also discusses the advantage of segmented space radiator designs utilizing heat pipe elements, or segments, in their survivability to micrometeoroid damage. This survivability is further raised by the use of condenser sections with attached fins, which also improve the radiation heat transfer rate. Since the problem of heat radiation from a fin does not lend itself to a closed analytical solution, a derivation of the governing differential equation and boundary conditions is given in appendix A, along with solutions for rectangular and parabolic fin profile geometries obtained by use of a finite difference computer code written by the author. Juhasz, Albert J. Glenn Research Center NASA/TP-1998-207427/REV1, E-11139-2/REV1, NAS 1.60:207427/REV1
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722150440 Total Pages :24 pages Book Rating :4.1/5 (54 download)
Book Synopsis Design Considerations for Lightweight Space Radiators Based on Fabrication and Test Experience with a Carbon-Carbon Composite Prototype Heat Pipe by : National Aeronautics and Space Administration (NASA)
Download or read book Design Considerations for Lightweight Space Radiators Based on Fabrication and Test Experience with a Carbon-Carbon Composite Prototype Heat Pipe written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the design implications for spacecraft radiators made possible by the successful fabrication and Proof-of-concept testing of a graphite-fiber-carbon-matrix composite (i.e., carbon-carbon (C-C)) heat pipe. The proto-type heat pipe, or space radiator element, consists of a C-C composite shell with integrally woven fins. It has a thin-walled furnace-brazed metallic (Nb-1%Zr) liner with end caps for containment of the potassium working fluid. A short extension of this liner, at increased wall thickness beyond the C-C shell, forms the heat pipe evaporator section which is in thermal contact with the radiator fluid that needs to be cooled. From geometric and thermal transport properties of the C-C composite heat pipe tested, a specific radiator mass of 1.45 kg/m2 can be derived. This is less than one-fourth the specific mass of present day satellite radiators. The report also discusses the advantage of segmented space radiator designs utilizing heat pipe elements, or segments, in their survivability to micro-meteoroid damage. This survivability is further raised by the use of condenser sections with attached fins, which also improve the radiation heat transfer rate. Since the problem of heat radiation from a fin does not lend itself to a closed analytical solution, a derivation of the governing differential equation and boundary conditions is given in appendix A, along with solutions for rectangular and parabolic fin profile geometries obtained by use of a finite difference computer code written by the author. Juhasz, Albert J. Glenn Research Center RTOP 632-1A-1X...
Book Synopsis DESIGN CONSIDERATIONS FOR LIGHTWEIGHT SPACE RADIATORS BASED ON FABRICATION AND TEST EXPERIENCE WITH A... NASA/TP--1998-207427/REV.1... NATION by :
Download or read book DESIGN CONSIDERATIONS FOR LIGHTWEIGHT SPACE RADIATORS BASED ON FABRICATION AND TEST EXPERIENCE WITH A... NASA/TP--1998-207427/REV.1... NATION written by and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis DESIGN CONSIDERATIONS FOR LIGHTWEIGHT SPACE RADIATORS BASED ON FABRICATION AND TEST EXPERIENCE WITH A... NASA/TP-1998-207427... DEC. 3, 1998 by : United States. National Aeronautics and Space Administration
Download or read book DESIGN CONSIDERATIONS FOR LIGHTWEIGHT SPACE RADIATORS BASED ON FABRICATION AND TEST EXPERIENCE WITH A... NASA/TP-1998-207427... DEC. 3, 1998 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mathematical Analysis of Space Radiator Segmenting for Increased Reliability and Reduced Mass by :
Download or read book Mathematical Analysis of Space Radiator Segmenting for Increased Reliability and Reduced Mass written by and published by . This book was released on 2001 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composite Heat Pipe Development Status: Development of Lightweight Prototype Carbon-carbon Heat Pipe with Integral Fins and Metal Foil Liner by : Albert J. Juhasz
Download or read book Composite Heat Pipe Development Status: Development of Lightweight Prototype Carbon-carbon Heat Pipe with Integral Fins and Metal Foil Liner written by Albert J. Juhasz and published by . This book was released on 1995 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parametric Study of Radiator Concepts for a Stirling Radioisotope Power System Applicable to Deep Space Mission by :
Download or read book Parametric Study of Radiator Concepts for a Stirling Radioisotope Power System Applicable to Deep Space Mission written by and published by . This book was released on 2000 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Collection of Technical Papers by : Conference
Download or read book A Collection of Technical Papers written by Conference and published by . This book was released on 2000 with total page 752 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.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781794269941 Total Pages :32 pages Book Rating :4.2/5 (699 download)
Book Synopsis High Conductivity Carbon-Carbon Heat Pipes for Light Weight Space Power System Radiators by : National Aeronautics and Space Adm Nasa
Download or read book High Conductivity Carbon-Carbon Heat Pipes for Light Weight Space Power System Radiators written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-19 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on prior successful fabrication and demonstration testing of a carbon-carbon heat pipe radiator element with integral fins this paper examines the hypothetical extension of the technology via substitution of high thermal conductivity composites which would permit increasing fin length while still maintaining high fin effectiveness. As a result the specific radiator mass could approach an ultimate asymptotic minimum value near 1.0 kg/m2, which is less than one fourth the value of present day satellite radiators. The implied mass savings would be even greater for high capacity space and planetary surface power systems, which may require radiator areas ranging from hundreds to thousands of square meters, depending on system power level. Juhasz, Albert J. Glenn Research Center NASA/TM-2008-215420, E-16584
Book Synopsis Development of Lightweight Radiators for Lunar Based Power Systems by : Albert J. Juhasz
Download or read book Development of Lightweight Radiators for Lunar Based Power Systems written by Albert J. Juhasz and published by . This book was released on 1994 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722227128 Total Pages :32 pages Book Rating :4.2/5 (271 download)
Book Synopsis Fabrication and Testing of Mo-Re Heat Pipes Embedded in Carbon/Carbon by : National Aeronautics and Space Administration (NASA)
Download or read book Fabrication and Testing of Mo-Re Heat Pipes Embedded in Carbon/Carbon written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-03 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Refractory-composite/heat-pipe-cooled wing an tail leading edges are being considered for use on hypersonic vehicles to limit maximum temperatures to values below material reuse limits and to eliminate the need to actively cool the leading edges. The development of a refractory-composite/heat-pipe-cooled leading edge has evolved from the design stage to the fabrication and testing of heat pipes embedded in carbon/carbon (C/C). A three-foot-long, molybdenum-rhenium heat pipe with a lithium working fluid was fabricated and tested at an operating temperature of 2460 F to verify the individual heat-pipe design. Following the fabrication of this heat pipe, three additional heat pipes were fabricated and embedded in C/C. The C/C heat-pipe test article was successfully tested using quartz lamps in a vacuum chamber in both a horizontal and vertical orientation. Start up and steady state data are presented for the C/C heat-pipe test article. Radiography and eddy current evaluations were performed on the test article. Glass, David E. and Merrigan, Michael A. and Sena, J. Tom Langley Research Center NAS1-96014; RTOP 242-33-03-20...
Book Synopsis A Power Conversion Concept for the Jupiter Icy Moons Orbiter by :
Download or read book A Power Conversion Concept for the Jupiter Icy Moons Orbiter written by and published by . This book was released on 2003 with total page 18 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 Design and Testing of Fabric Composite Heat Pipes for Space Nuclear Power Applications by : William C. Kiestler
Download or read book Design and Testing of Fabric Composite Heat Pipes for Space Nuclear Power Applications written by William C. Kiestler and published by . This book was released on 1992 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional stainless steel - water and ceramic fabric composite water heat pipes have been built and tested. The tests have been conducted to compare the performance characteristics between conventional and fabric composite heat pipe radiators for space nuclear power heat rejection systems. The fabric composite concept combines a strong ceramic fabric with a thin metal liner to form a very lightweight heat pipe. The heat pipes tested have used identical, homogeneous fabric wicks and water as the working fluid. One fabric composite heat pipe has been constructed by fitting a braided aluminoborosilicate fabric tube over the outside of the conventional stainless steel heat pipe. A more advanced fabric composite design combines the woven fabric with a 0.25 mm (10 mil) stainless steel tube as the liner, and reduces the mass of the heat pipe by a factor of three. A heat pipe testing facility was designed and built for the purpose of testing various conventional and fabric composite heat pipes. This facility allows the testing of heat pipes in a vacuum, at low temperatures, and can accommodate a variety of heat pipe designs. Instrumentation and computer interfacing provide for continuous monitoring and evaluation of heat pipe performance. Tests show that heat pipe radiator capacity can be significantly enhanced by using the fabric composite design. Tests comparing a conventional heat pipe with fabric composite heat pipes achieved a 100% increase in the emissivity and heat rejection capacity of the radiator. Since the ceramic fabric is strong enough to withstand the internal pressure of the heat pipe, a very thin metal foil can be used to contain the working fluid. The increase in heat rejection capacity, combined with the significant reduction in the heat pipe mass, translates into a substantial savings for space power systems employing fabric composite heat pipe radiators.
