Now showing items 1-20 of 964

    • 2014 ISS Potable Water Characterization and Continuation of the Dimethylsilanediol Chronicle 

      Straub, John E. II; Plumlee, Debrah K.; Mudgett, Paul D. (45th International Conference on Environmental Systems, 2015-07-12)
      During 2014 the crews from Expeditions 38-41 were in residence on the International Space Station (ISS). In addition to the U.S. potable water reclaimed from humidity condensate and urine, the other water supplies available ...
    • 30 Years of Thermally Controlled Imaging Spectrometers for Earth and Planetary Science 

      Robert Green (46th International Conference on Environmental Systems, 2016-07-10)
      Since its inception spectroscopy has been used to pursue science and applications based on the interaction of light with matter on Earth, throughout the solar system, and for diverse astronomical objectives. Spectroscopic ...
    • 3D Modeling of Human Thermal Interaction in Complex Environments using the Wissler Human Thermal Model 

      Cognata, Thomas; Durrant, Tom (44th International Conference on Environmental Systems, 2014-07-13)
      Models for human thermal evaluation in extreme environments have played a key role in life support, suit, and crewed vehicle development at NASA for many decades. These models, which include the 41-Node Metabolic Man and ...
    • 4BMS-X Design and Test Activation 

      Warren Peters; James Knox (47th International Conference on Environmental Systems, 2017-07-16)
      In support of the AES (Advanced Exploration Systems) goals to reduce power, volume and mass requirements on future CO2 (Carbon Dioxide) removal systems for exploration missions, a 4BMS (Four Bed Molecular Sieve) test bed ...
    • A CO2 controller enabling cell culture research inside automated incubator onboard the ISS 

      Stuart Tozer; Louis Stodieck; Alexander Hoehn; Jonathan Anthony (46th International Conference on Environmental Systems, 2016-07-10)
      The majority of all Earth-based mammalian tissue and cell culture research is conducted in “CO2 incubators” where both the air temperature and concentration of carbon dioxide is precisely controlled to ensure optimal cell ...
    • A Geology Sampling System for Small Bodies 

      Adam Naids; A. Drew Hood; Trevor Graff; Paul Abell; Jesse Buffington (46th International Conference on Environmental Systems, 2016-07-10)
      Human exploration of small bodies is being investigated as a precursor to a Mars surface mission. Asteroids, comets, dwarf planets, and the moons of Mars all fall into this small bodies category and some are being discussed ...
    • A Low-power medical Oxygen Concentrator 

      Gokhan Alptekin; Douwe Bruinsma; Ambalavan Jayaraman; Casey Bernal; Byron Wall (46th International Conference on Environmental Systems, 2016-07-10)
      An on-board oxygen concentrator is required during long duration manned space missions to supply medical oxygen. The commercial medical oxygen generators based on pressure swing adsorption (PSA) are large and highly power ...
    • A mission concept to study multigenerational mammalian reproduction 

      Erica Rodgers; Matt Simon; Patrick Chai; Weston Lewis; Jim Neilan; Fred Stillwagen; Phillip Williams (46th International Conference on Environmental Systems, 2016-07-10)
      A team at NASA Langley Research Center conducted a study during which a conceptual space mission was designed. In this study, rodents are used as human analogs to gather biological and systems data in a relevant environment ...
    • A New Human Thermal Model for the Dynamic Life Support System Simulation V-HAB 

      Jan Weber; Jonas Schnaitmann (46th International Conference on Environmental Systems, 2016-07-10)
      The Virtual Habitat project (V-HAB) at the Technical University of Munich (TUM) aims to develop a dynamic simulation environment for life support systems (LSS). Within V-HAB a dynamic human model interacts with the LSS by ...
    • A New Plant Habitat Facility for the ISS 

      Robert Morrow; Robert Richter; Guiliermo Tellez; Oscar Monje; Raymond Wheeler; Gioia Massa; Nicole Dufour; Bryan Onate (46th International Conference on Environmental Systems, 2016-07-10)
      The NASA Advanced Plant Habitat (APH) is configured as a quad-locker payload to be mounted in a standard EXpedite the PRo-cessing of Experiments to the Space Station Rack on the International Space Station. It is envisioned ...
    • A Robust, Gravity-Insensitive, High-Temperature Condenser for Water Recovery 

      Weibo Chen; Thomas Conboy; Michael Ewert (46th International Conference on Environmental Systems, 2016-07-10)
      Regenerative life support systems are vital for NASA’s future long-duration human space exploration missions. A Heat Melt Compactor (HMC) system is being developed by NASA to dry and compress trash generated during space ...
    • A Standard for the Exchange of Thermal Analysis Data (STEP-TAS) 

      James Etchells (46th International Conference on Environmental Systems, 2016-07-10)
      The STEP-TAS protocol for the exchange of thermal analysis data has been in active use in industry for over ten years. It has been used to successfully exchange geometrical mathematical models for many projects, first via ...
    • A Tale of Two Chambers: Iterative Approaches and Lessons Learned from Life Support Systems Testing in Altitude Chambers 

      Gianluca Callini (46th International Conference on Environmental Systems, 2016-07-10)
      The drive for the journey to Mars is in a higher gear than ever before. We are developing new spacecraft and life support systems to take humans to the Red Planet. The journey that development hardware takes before its ...
    • A Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Deep Space Science Missions 

      Eric Sunada; Pradeep Bhandari; Brian Carroll; Terry Hendricks; Benjamin Furst; Joshua Kempenaar; Gajanana Birur; Hiroki Nagai; Takurou Daimaru; Kenichi Sakamoto; Stefano Cappucci; Jordan Mizerak (46th International Conference on Environmental Systems, 2016-07-10)
      NASA’s planetary science objectives are achieved through mission opportunities and the ability to obtain quality science data. Toward this end, a flight system that requires fewer resources in extreme environments while ...
    • Accounting for Epistemic Uncertainty in Mission Supportability Assessment: A Necessary Step in Understanding Risk and Logistics Requirements 

      Andrew Owens; Olivier de Weck; Chel Stromgren; Kandyce Goodliff; William Cirillo (47th International Conference on Environmental Systems, 2017-07-16)
      Future crewed missions to Mars present a maintenance logistics challenge that is unprecedented in human spaceflight. Mission endurance – defined as the time between resupply opportunities – will be significantly longer ...
    • Actively Controlled Loop Heat Pipes as a Human Spacecraft External Active Thermal Control System 

      Eugene Ungar; Jentung Ku (47th International Conference on Environmental Systems, 2017-07-16)
      Recent United States human spacecraft (Space Shuttle, International Space Station, and Orion) have used two loop active thermal control systems. In these systems, a non-toxic water-based fluid flows through an internal ...
    • Actuator Sizing and Utility Assessment of Control Moment Gyroscopes for an Astronaut EVA Jetpack 

      Sheerin, Todd F.; Hoffman, Jeffrey A.; Carpenter, Michele D. (45th International Conference on Environmental Systems, 2015-07-12)
      A broad range of human space exploration missions could benefit from an astronaut mobility unit capable of providing six-degree-of-freedom control during extravehicular activities (EVAs). Currently, NASA is developing a ...
    • Additive Manufacturing Technology to Enhance Environmental Control Life Support (ECLS) Equipment Performance While Reducing Its Weight and Volume 

      Stapleton, Thomas J.; Krouse, Daniel; Laliberte, Yvon J. (45th International Conference on Environmental Systems, 2015-07-12)
      Spacecraft planned for exploration beyond Low Earth Orbit (LEO) require ECLS systems to be greatly reduced in weight and volume from the current ISS platforms. Additive Manufacturing (AM) is an emerging technology that ...
    • Addressing Thermal Model Run Time Concerns of the Wide Field Infrared Survey Telescope using Astrophysics Focused Telescope Assets (WFIRST-AFTA) 

      Hume Peabody; Sergio Guerrero; John Hawk; Juan Rodriguez-Ruiz; Carson McDonald; Cliff Jackson (46th International Conference on Environmental Systems, 2016-07-10)
      The Wide Field Infrared Survey Telescope using Astrophysics Focused Telescope Assets (WFIRST-AFTA) utilizes an existing 2.4 m diameter Hubble sized telescope donated from elsewhere in the federal government for near-infrared ...
    • Adsorption of Ammonia on Regenerable Carbon Sorbents 

      Wójtowicz, Marek A.; Cosgrove, Joseph E.; Serio, Michael A.; Wilburn, Monique S. (45th International Conference on Environmental Systems, 2015-07-12)
      Results are presented on the development of reversible sorbents for the combined carbon dioxide, moisture, and trace-contaminant (TC) removal for use in extravehicular activities, and more specifically in the Primary Life ...