Voici les éléments 1-20 de 2229

    • In situ Manufacturing derived from Bioregenerative Life Support Systems 

      Morrow, Robert; Wetzel, John; Moffatt, Sam (51st International Conference on Environmental Systems, 7/10/2022)
      In situ resources from planetary sources can be used in conjunction with a bioregenerative life support system to produce excess biomass which along with miscellaneous waste streams can be used as a feedstock for manufacturing ...
    • NASA Advanced Space Suit xEMU Development Report-- Shoulder Assembly 

      Meginnis, Ian; McFarland, Shane; Rhodes, Richard; Watters, Jeff; Cox, David (51st International Conference on Environmental Systems, 7/10/2022)
      For the past several years, the Exploration Extravehicular Mobility Unit (xEMU) team at NASA's Johnson Space Center (JSC) has focused on the development and detailed design of the xEMU to support missions to the International ...
    • NASA Advanced Space Suit xEMU Development Report-- Wired Heart Rate Monitor 

      Meginnis, Ian; Woodbury, Christopher; Rivera, Jorge; Jennings, Michael; Sreedhar, Sree (51st International Conference on Environmental Systems, 7/10/2022)
      For the past several years, the Exploration Extra-Vehicular Mobility Unit (xEMU) team at NASA's Johnson Space Center (JSC) has focused on development and testing of the xEMU to support missions to the International Space ...
    • Advanced Technology Infusion into a Spacesuit Portable Life Support System 

      Chullen, Cinda (51st International Conference on Environmental Systems, 7/10/2022)
      Advancement in technology drives our future. Moreover, the successful implementation of a technology drives its possibilities. The National Aeronautics and Space Administration (NASA) has invested in numerous technologies ...
    • Planetary and Lunar Environment Thermal Toolbox Elements (PALETTE) Project Year Two Results 

      Bugby, David; Rivera, Jose; Britton, Shawn (51st International Conference on Environmental Systems, 7/10/2022)
      This paper summarizes the technology development progress made through year two of the three year JPL PALETTE project, which is funded by the NASA Game Changing Development (GCD) Program. The overarching goal is to ensure ...
    • Development of an Engineering Model of the Re-Deployable Radiator for Deep Space Explorer 

      Sawada, Kenichiro; Akizuki, Yuki; Kinjo, Tomihiro; Ogawa, Hiroyuki; Miyabara, Takeshi; Okahashi, Takakazu; Toyota, Hiroyuki; Nishiyama, Kazutaka; Imamura, Hiroshi; Takashima, Takeshi; Miyamoto, Keiji; Matsumoto, Kan; Watanabe, Kazuki; Nagano, Hosei; Okudaira, Toshiaki (51st International Conference on Environmental Systems, 7/10/2022)
      Future deep space explorers need a technology that can drastically reduce the power consumption of heaters to enter the outer planets with small spacecraft. We are developing the re-deployable radiator named a Reversible ...
    • Development and Testing of a Lightweight Thermal Louver with Single Crystal Shape Memory Alloy 

      Akizuki, Yuki; Sawada, Kenichiro; Tobe, Hirobumi; Ogawa, Hiroyuki (51st International Conference on Environmental Systems, 7/10/2022)
      Space probes need to respond to short-term changes in the thermal environment caused by sunshine and shade during orbit, as well as long-term changes in the thermal environment during interplanetary navigation, where the ...
    • in-Situ Individual Particle Sizer (iSIPS) apparatus 

      Cantin, Daniel; Pancrati, Ovidiu; Panneton, Denis; Cormier, Jean-Francois; Roy, Sebastien; Turbide, Simon; Sang-Nourpour, Nafiseh; Olfert, Jason (51st International Conference on Environmental Systems, 7/10/2022)
      Aerosols are well known to have significant negative impacts on human health. For space instrumentation, they can also be detrimental to the proper operation and integrity of mechanical device dynamics. Therefore, the ...
    • Trade Study Analysis of a Cryogenic Oxygen Architecture for Lunar Outpost Life Support 

      Chen, Thomas; Sweterlitsch, Jeffrey (51st International Conference on Environmental Systems, 7/10/2022)
      A trade study was performed to compare the use of cryogenic liquid oxygen (LOX) with high pressure gaseous oxygen (GOX) and electrolysis approaches for Lunar outpost life support, which consists of a surface habitat and ...
    • James Webb Space Telescope Initial On-Orbit Thermal Performance 

      Ousley, Wes; Parrish, Keith; Thomson, Shaun; Yang, Kan (51st International Conference on Environmental Systems, 7/10/2022)
      The James Webb Space Telescope (JWST) is expected to be the premier space based astronomical observatory when it reaches its intended operational temperatures in the Spring of 2022. The cryogenic telescope portion features ...
    • Thermal Ground Testing of Loop Heat Pipes for PACE OCI 

      Semenov, Sergey; Patel, Deepak; Hoang, Triem; Stull, Christopher (51st International Conference on Environmental Systems, 7/10/2022)
      A pair of propylene Loop Heat Pipes (LHP) designed for the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) Ocean Color Instrument (OCI) was tested in two configurations: flat (minimize the influence of gravity) and flight ...
    • Thermal Vaccuum Testing of a Miniature Propylene Loop Heat Pipe 

      Thayer, John; Jiang, Jianbo; Gernert, Nelson; Bugby, David; Rodriguez, Jose; Ousley, Wes (51st International Conference on Environmental Systems, 7/10/2022)
      This paper presents the design and thermal vacuum testing of a Miniature Loop Heat Pipe (MLHP) with propylene as working fluid. It is for cooling a prototype lunar power device and so needs to work against lunar gravity. ...
    • Propylene Loop Heat Pipe Design and Thermal Performance 

      Thayer, John; Jiang, Jianbo; Gernert, Nelson; Semenov, Sergey; Patel, Deepak; Stull, Christopher; Hoang, Triem; Ousley, Wes (51st International Conference on Environmental Systems, 7/10/2022)
      A pair of propylene Loop Heat Pipes has been designed, built, tested and delivered for use in cooling the two main Ocean Color Instruments for the Plankton, Aerosol, Cloud, ocean Ecosystem satellite, due to be launched by ...
    • Working Fluid and Material Selection for Heat Pipes and Vapor Chambers for use in Air-Cooled Temperature Swing Adsorption Compression Systems 

      Dzurny, Quinton; Richardson, Tra-My Justine; Peterson, G.P. (51st International Conference on Environmental Systems, 7/10/2022)
      An air-cooled Temperature Swing Adsorption Compressor (AC-TSAC) has been identified as the preferred Temperature Swing Adsorption Compressor for use in long duration and space exploration missions. The AC-TSAC compresses ...
    • Temperature Oscillations in Loop Heat Pipe Operations-- a Revisit 

      Hoang, Triem (51st International Conference on Environmental Systems, 7/10/2022)
      The oscillatory behaviors sometimes observed in Loop Heat Pipe (LHP) operations can be shown as the byproduct of the system (like all other dynamical systems) operating in certain unstable regimes. A LHP operational ...
    • Status and Results of the Spacecraft Atmosphere Monitor Technology Demonstration Instrument 

      Darrach, Murray; Madzunkov, Stojan; Bae, Byunghoon; Kidd, Richard; Maiwald, Frank; Malone, Charles; Nikolic, Dragan; Belousov, Anton; Zhong, Fang; Simcic, Jurij; Homer, Margie; Gonzales, Marianne; Garkanian, Vachik; Lopez, Valeria; Jung-Kubiak, Cecile; Rais-Zadeh, Mina; Krause, Hannes; Tillmans, Tina (51st International Conference on Environmental Systems, 7/10/2022)
      The Spacecraft Atmosphere Monitor (S.A.M.) is a miniaturized gas chromatograph mass spectrometer (GC/MS) instrument that is being developed for monitoring the cabin atmosphere for human spaceflight missions. The first ...
    • Dragonfly Lander: Terrestrial Thermal Control Techniques on Titan, Saturn's Largest Moon 

      Holtzman, Gary; Ercol, Carl; Coker, Robert; Parkus, James; Abel, Elisabeth (51st International Conference on Environmental Systems, 7/10/2022)
      Dragonfly is a NASA New Frontiers mission that will send a rotorcraft lander to Titan, Saturn's largest moon. Titan has low gravity and a dense atmosphere, making flight an ideal way to traverse its surface, but its ...
    • A Two-Stage Regenerable Filter for Collection and Disposal of Carbon Fines 

      Berger, Gordon; Agui, Juan; Black, Cara; Mehan, Jeff; Holtsnider, John; McCurry, Bryan (51st International Conference on Environmental Systems, 7/10/2022)
      NASA is investigating the use of the Plasma Pyrolysis Assembly (PPA), which is a methane post-processing technology with the goal to recover hydrogen from the Carbon dioxide Reduction Assembly (CRA) currently onboard the ...
    • Testing and Evaluation of Ultra-Thin Loop Heat Pipe as Lightweight Flexible Thermal Strap for Spacecraft 

      Nagano, Hosei; Mizutani, Takuji; Kajiyama, Satoshi; Akizuki, Yuki; Machida, Yoshihiro (51st International Conference on Environmental Systems, 7/10/2022)
      Thermal strap with high thermal conductance are required. Usually, thermal strap is made of high thermal conductive materials such as copper, aluminum, and graphite sheet. In order to obtain high thermal conductance, the ...
    • Inflatable Habitat Structural Health Monitoring via Embedded Fiber Optic Sensors 

      Ohanian III, Osgar John; Pope, Susan M.; Heaslet, Bret; Woods, Grant; Morgan, Matthew; Kirwan, James; Welch, Joseph; Jones, Thomas Carno; Litteken, Douglas A. (51st International Conference on Environmental Systems, 7/10/2022)
      Inflatable structures present a novel solution to high volume-to-weight habitation for future space missions. Structural health monitoring (SHM) of flexible softgoods materials cannot be achieved with many traditional ...