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Viewing 1 to 16 of 16
2005-07-11
Technical Paper
2005-01-2895
John F. Lewis, John Granahan, Matt Russell, John Lumpkin
Abstract: One of the most critical functions of ECLSS is to maintain the atmospheric oxygen concentration within habitable limits. On the ISS, this function is provided by the Major Constituent Analyzer (MCA). During ISS (International Space Station) crew increments 7 thru 9, the MCA was at risk of imminent failure as evident by sustained high ion-pump current levels. In the absence of continuous constituent measurement by the MCA, manual methods of estimating partial pressure of oxygen (ppO2) and concentration levels need to be developed and validated to: (1) ensure environmental control and life support, (2) prohibit ISS system and hardware damage, and (3) enable planned ISS activities that effect constituent balance.
2007-07-09
Technical Paper
2007-01-3137
O. Monje, I. Eraso, C. O'Keeffe, R. M. Wheeler
A lab-scale testbed for screening and characterizing the chemical specificity of commercial “off-the-shelf” (COTS) polymer adsorbents was built and tested. COTS polymer adsorbents are suitable candidates for future trace contaminant (TC) control technologies. Regenerable adsorbents could reduce overall TC control system mass and volume by minimizing the amounts of consumables to be resupplied and stored. However, the chemical specificity of these COTS adsorbents for non-methane volatile organic compounds (NMVOCs) (e.g., methanol, ethanol, dichloromethane, acetone, etc) commonly found in spacecraft is unknown. Furthermore, the effect of humidity on their filtering capacity is not well characterized. The testbed, composed of a humidifier, an incubator, and a gas generator, delivers NMVOC gas streams to conditioned sorbent tubes.
2007-07-09
Technical Paper
2007-01-3038
Tim Nalette, Doug Snowdon, Karen Pickering, Michael Callahan
Advanced water processors being developed for NASA's Exploration Initiative rely on phase change technologies and/or biological processes as the primary means of water reclamation. As a result of the phase change, volatile compounds will also be transported into the distillate product stream. The catalytic reactor assembly used in the International Space Station (ISS) water processor assembly, referred to as Volatile Removal Assembly (VRA), has demonstrated high efficiency oxidation of many of these volatile contaminants, such as low molecular weight alcohols and acetic acid, and is considered a viable post treatment system for all advanced water processors. To support this investigation, two ersatz solutions were defined to be used for further evaluation of the VRA. The first solution was developed as part of an internal research and development project at Hamilton Sundstrand (HS), and is based primarily on ISS experience related to the development of the VRA.
2014-10-29
Article
NASA and Aerojet Rocketdyne have successfully completed a series of hot-fire tests on an advanced rocket-engine thrust chamber assembly using copper alloy additive manufacturing technology. Full-scale demonstration is the next step in the technology’s development path.
2013-09-23
Article
NASA has selected six companies to participate in a government/industry partnership to advance composite materials research and certification; the project seeks to reduce the time for development, verification, and regulatory acceptance of new composite materials and structures.
2010-08-25
Article
Southern Research Institute, a not-for-profit scientific research organization based in Birmingham, AL, opened a new office in Huntsville, AL. The Huntsville office will support U.S. Department of Defense and NASA programs, and serve as a center for business development activities in the Huntsville market.
2017-05-05
Article
NASA has selected proposals for the creation of two multi-disciplinary, university-led Space Technology Research Institutes (STRIs) that will focus on the development of technologies critical to extending human presence deeper into our solar system. The new STRIs will bring together researchers from various disciplines and organizations to collaborate on the advancement of cutting-edge technologies in bio-manufacturing and space infrastructure.
2010-04-23
Article
The Lockheed Martin-led team developing the Orion crew exploration vehicle has completed fabrication of the world’s largest heat shield structure. The high-temperature composite material system, which is also suitable for commercial applications such as automobiles and heavy vehicles, was developed by the Lockheed Martin Orion thermal protection system team in partnership with TenCate Advanced Composites.
2015-04-16
Article
Inside the turbocharger of your family car is a special material that was also used in the skin of NASA's X-15 rocket plane. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at Inconel, a material commonly used in turbocharger rotors. 
2017-10-15
Article
Engineers at NASA and Boeing are amongst the believers who foresee folding wings in-flight using advanced materials and technologies being a potential game-changer for future aircraft. The two organization have teamed to develop an actuation system that uses an SMA that will accomplish this goal using less complex, lighter, and more compact hardware than conventional systems.
2008-06-30
Article
Ball Aerospace & Technologies has completed the precision coating process of the primary mirror for NASA’s Kepler Mission, a mission that is specifically designed to detect Earth-size and smaller planets near stars within our region of the Milky Way galaxy.
2010-04-26
Article
NASA entered into a nonreimbursable Space Act Agreement with Chrysler Group LLC to coordinate technology development and pursue partnership opportunities in areas such as mobility systems, advanced materials, and wireless technologies.
2012-01-06
Article
Insulating films and tapes supplied by Dunmore Corp. are providing protection from thermal damage and magnetic interference for the electronic systems on board NASA’s Juno probe, which was launched from Cape Canaveral Air Force Station in Florida on Aug. 5.
2010-05-04
Article
Michael Nathal, chief of the Advanced Metallic Branch at NASA’s Glenn Research Center, is looking to re-invigorate that facility’s GRCop-84 program, among others.
2011-06-21
Article
Collier Research recently released HyperSizer v6 structural sizing and analysis software, which integrates with FEA solvers in a continuous, automated iterative loop, conducting trade studies and examining millions of potential design candidates down to the ply—or even element—level.
2009-08-19
Article
Targeted to lift off Aug. 24, the NASA Space Shuttle Discovery will take six materials science experiments to the International Space Station’s (ISS) U.S. Laboratory Destiny for low-gravity experiments to be conducted by astronauts aboard.
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