Now showing items 21-40 of 1705

    • International Space Station Potable Water Characterization for 2013 

      Straub, John E.; Plumlee, Debrah K.; Schultz, John R.; Mudgett, Paul D. (44th International Conference on Environmental Systems, 2014-07-13)
      In this post-construction, operational phase of International Space Station (ISS) with an ever-increasing emphasis on its use as a test bed for future exploration missions, the ISS crews continue to rely on water reclamation ...
    • Results of a Dynamic Liquid Cooling Garment Simulation in V-SUIT 

      Göser, Johannes; Olthoff, Claas T. (44th International Conference on Environmental Systems, 2014-07-13)
      The dynamic portable life support system (PLSS) simulation software Virtual Space Suit (V-SUIT) has been under development at the Technische Universität München since 2011 as a spin-off from the Virtual Habitat (V-HAB). ...
    • AEM-E – A small life support system for the transport of rodents to the ISS 

      Niederwieser, Tobias; Gerren, Richard; Koenig, Paul; Tozer, Stuart; Stodieck, Louis; Rieger, Sebastian; Hoehn, Alexander (44th International Conference on Environmental Systems, 2014-07-13)
      Current resupply carriers to the ISS, such as the Dragon or Cygnus capsules, do not yet support replenishment or control of atmosphere constituent altered by respiration of living cargo. In order to transport animals for ...
    • Space and Industrial Brine Drying Technologies 

      Jones, Harry W.; Wisniewski, Richard; Flynn, Michael; Shaw, Hali (44th International Conference on Environmental Systems, 2014-07-13)
      This survey describes brine drying technologies that have been developed for use in space and industry. NASA has long considered developing a brine drying system for the International Space Station (ISS). Possible processes ...
    • An Evaluation of Technology to Remove Problematic Organic Compounds from the International Space Station Potable Water 

      Rector, Tony; Metselaar, Carol; Peyton, Barbara; Steele, John; Michalek, William; Bowman, Elizabeth; Wilson, Mark; Gazda, Daniel; Carter, Layne (44th International Conference on Environmental Systems, 2014-07-13)
      Since activation of the Water Processor Assembly (WPA) on the International Space Station (ISS) in November of 2008, there have been three events in which the TOC (Total Organic Carbon) in the product water has increased ...
    • Early Operations Flight Correlation of the Lunar Laser Communications Demonstration (LLCD) on the Lunar Atmosphere and Dust Environment Explorer (LADEE) 

      Peabody, Hume L.; Yang, Kan; Nguyen, Daniel H.; Cornwell, Donald M. (44th International Conference on Environmental Systems, 2014-07-13)
      The Lunar Atmosphere and Dust Environment Explorer (LADEE) mission launched on September 6, 2013 and underwent a one month cruise phase before lunar insertion. The LADEE spacecraft is a power limited, octagonal, composite ...
    • Feasibility of Spacesuit Kinematics and Human-Suit Interactions 

      Bertrand, Pierre J.; Anderson, Allison; Hilbert, Alexandra; Newman, Dava J. (44th International Conference on Environmental Systems, 2014-07-13)
      There are multiple challenges associated with extravehicular activity (EVA). The design of a spacesuit requires specific attention to the mobility of astronauts. All of the currently flown spacesuits are gas-pressurized ...
    • Evaluation of Heat Transfer Strategies to Incorporate a Full Suit Flexible Radiator for Thermal Control in Space Suits 

      Massina, Christopher J.; Klaus, David M.; Sheth, Rubik B. (44th International Conference on Environmental Systems, 2014-07-13)
      Traditionally, thermoregulation of space walking astronauts has been achieved by the sublimation of water to the vacuum of space. Future missions call for the need to achieve robust closed-loop thermal control to reduce ...
    • Studies on the Use of Conductive Porous Media Distillation and Thermoelectric Freeze-Concentration for Water Recovery in Space Exploration 

      Arquiza, J. M. R. Apollo; Hunter, Jean B.; Carranza, Susana (44th International Conference on Environmental Systems, 2014-07-13)
      A closed water recycling loop for long duration manned space missions will reduce water payload mass and associated lift costs. Nearly complete water recovery is possible by evaporating space wastewater to dryness but ...
    • Z-2 Prototype Space Suit Development 

      Ross, Amy; Rhodes, Richard; Graziosi, David; Jones, Bobby; Lee, Ryan; Haque, Bazle Z. (Gama); Gillespie, John W. (44th International Conference on Environmental Systems, 2014-07-13)
      NASA’s Z-2 prototype space suit is the highest fidelity pressure garment from both hardware and systems design perspectives since the Space Shuttle Extravehicular Mobility Unit (EMU) was developed in the late 1970’s. Upon ...
    • Continued Development of the Brine Evaporation Bag 

      Delzeit, Lance; Flynn, Michael; Fisher, John; Howard, Kevin; Shaw, Hali; Hyde, Deirdre (44th International Conference on Environmental Systems, 2014-07-13)
      The Brine Evaporation Bag (BEB) is a membrane based bag system for the dewatering of brine. Previous studies showed the ability of the BEB to dewater brine at low temperatures with a 96% mass reduction. Additionally, a ...
    • Phase Change Material for Temperature Control of Imager or Sounder on GOES Type Satellites in GEO 

      Choi, Michael K. (44th International Conference on Environmental Systems, 2014-07-13)
      This paper uses phase change material (PCM) in the scan and telescope cavities of an imager or sounder on satellites in geostationary orbit (GEO) to maintain the telescope temperature stable. When solar flux entering the ...
    • IXV Venting System Design and Testing 

      Loddoni, Giovanni; Bertone, Massimo; Andrioli, Lorenzo; Tavera, Salvatore; Sinesi, Cosimo (44th International Conference on Environmental Systems, 2014-07-13)
      The Intermediate eXperimental Vehicle (IXV) is a non-pressurized lifting-body shaped re-entry vehicle committed by ESA to TAS-I as prime contractor (on June 2009) in a synergic approach with industrial partnerships. The ...
    • Carbon-Based Regenerable Sorbents for the Combined Carbon Dioxide and Ammonia Removal for the Primary Life Support System (PLSS) 

      Wójtowicz, Marek A.; Cosgrove, Joseph E.; Serio, Michael A.; Manthina, Venkata; Singh, Prabhakar; Chullen, Cinda (44th International Conference on Environmental Systems, 2014-07-13)
      Results are presented on the development of reversible sorbents for the combined carbon dioxide and trace-contaminant (TC) removal for use in Extravehicular Activities (EVAs). Since ammonia is the most important TC to be ...
    • Phase-change thermal capacitors for ExoMars 2016 mission 

      Gottero, M.; Perotto, V.; Martino, R.; Leyda, B.; Ozmat, B. (44th International Conference on Environmental Systems, 2014-07-13)
      Use of heat capacitors based on Phase-Change Materials (PCM) for the effective thermal management of peak power dissipation in space systems is not a novelty. Yet, its application in real missions has been small, especially ...
    • Use of Semi-Markov Models for Quantitative ECLSS Reliability Analysis: Spares and Buffer Sizing 

      Owens, Andrew C.; Weck, Olivier L. de (44th International Conference on Environmental Systems, 2014-07-13)
      As the duration of human spaceflight missions increases, it becomes less feasible to attempt to design Environmental Control and Life Support Systems (ECLSS) with components of such high reliability that they will never ...
    • Thermal Micrometeoroid Garment Development for an Exploration EVA Glove 

      Macleod, Shawn R.; Jacobs, Shane E.; Doherty, Matthew T.; Ripps, Travis B. (44th International Conference on Environmental Systems, 2014-07-13)
      It is highly probable that human space exploration objectives will drive the next generation Extravehicular Activity (EVA) spacesuit to require design elements capable of providing thermal insulation protection across ...
    • Torrefaction Processing of Spacecraft Solid Wastes 

      Serio, Michael A.; Cosgrove, Joseph E.; Wójtowicz, Marek A.; Lee, Jeffrey; Wignarajah, Kanapathipillai; Fisher, John (44th International Conference on Environmental Systems, 2014-07-13)
      New technology is needed to collect, stabilize, recover useful materials, and store human fecal waste and other spacecraft solid wastes for long duration space missions. The system should also require minimal crew interactions, ...
    • In-Suit Sensor Systems for Characterizing Human-Space Suit Interaction 

      Anderson, A.; Hilbert, A.; Bertrand, P.; McFarland, S.; Newman, D. J. (44th International Conference on Environmental Systems, 2014-07-13)
      Although the U.S. has studied space suit performance for decades, relatively little is known about how the astronaut moves and interacts within the space suit. We propose the use of in- suit sensor systems to characterize ...
    • A Curious Year on Mars—Long-Term Thermal Trends for Mars Science Laboratory Rover’s First Martian Year 

      Cucullu, Gordy C.; Zayas, Daniel; Novak, Keith; Wu, Pat (44th International Conference on Environmental Systems, 2014-07-13)
      By the time of this writing, Curiosity, the Mars Science Laboratory (MSL) Rover, has weathered four seasons in Gale Crater, just south of and approaching the foothills of the 5- km high Aeolis Mons, known as “Mount Sharp,” ...