Now showing items 1-20 of 964

    • Assessment of molecular contamination on the BepiColombo MMO spacecraft 

      Ogawa, Hiroyuki; Urayama, Fumitaka; Baba, Susumu; Miyazaki, Eiji; Okamoto, Akira; Hayakawa, Hajime (44th International Conference on Environmental Systems, 2014-07-13)
      The influence of the molecular contaminants (MOC) accumulating on the thermal control surface as well as the optical elements was assessed for the BepiColombo MMO (Mercury Magnetospheric Orbiter). The outgassing and ...
    • REVIEW AND RATIONALISATION OF POST-FIRE MONITORING FOR ATMOSPHERE CONTROL IN SUBMARINES 

      Griffin, L. J.; Bollan, H. R. (44th International Conference on Environmental Systems, 2014-07-13)
      In the event of a fire in the enclosed space of a submarine a set routine for post-fire monitoring and air purification is detailed in Royal Navy (RN) documents. Currently there is a set of chemical species required to be ...
    • U.S. Spacesuit Knowledge Capture Accomplishments in Fiscal Years 2012 and 2013 

      Chullen, Cinda; Oliva, Vladenka R. (44th International Conference on Environmental Systems, 2014-07-13)
      The NASA U.S. Spacesuit Knowledge Capture (KC) program has existed since the beginning of 2008. The program was designed to share historical spacesuit information with engineers and other technical team members to augment ...
    • Logistics Reduction and Repurposing Technology for Long- Duration Space Missions 

      Broyan, James Lee; Chu, Andrew; Ewert, Michael K. (44th International Conference on Environmental Systems, 2014-07-13)
      One of NASA’s Advanced Exploration Systems (AES) projects is the Logistics Reduction and Repurposing (LRR) project, which has the goal of reducing logistics resupply items through direct and indirect means. Various ...
    • 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 ...
    • A Grammar for Encoding and Synthesizing Life Support System Architectures using the Object Process Methodology 

      Do, Sydney; Weck, Olivier de (44th International Conference on Environmental Systems, 2014-07-13)
      As NASA continues its capabilities-driven approach towards its ambitious human spaceflight program, a need to systematically identify potentially attractive technologies and to quickly evaluate their system impact has ...
    • Optical Multi-Gas Monitor Technology Demonstration on the International Space Station 

      Pilgrim, Jeffrey S.; Wood, William R.; Casias, Miguel E.; Vakhtin, Andrei B.; Johnson, Michael D.; Mudgett, Paul D. (44th International Conference on Environmental Systems, 2014-07-13)
      The International Space Station (ISS) employs a suite of portable and permanently located gas monitors to insure crew health and safety. These sensors are tasked with functions ranging from fixed mass spectrometer based ...
    • Reliability Growth in Space Life Support Systems 

      Jones, Harry W. (44th International Conference on Environmental Systems, 2014-07-13)
      A hardware system’s failure rate often increases over time due to wear and aging, but not always. Some systems instead show reliability growth, a decreasing failure rate with time, due to effective failure analysis and ...
    • Metal Hydrides, MOFs, and Carbon Composites as Space Radiation Shielding Mitigators 

      Atwell, William; Rojdev, Kristina; Liang, Daniel; Hill, Matthew (44th International Conference on Environmental Systems, 2014-07-13)
      Recently, metal hydrides and MOFs (Metal-Organic Framework/microporous organic polymer composites - for their hydrogen and methane storage capabilities) have been studied with applications in fuel cell technology. We have ...
    • 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 ...
    • Surface Water Ocean Topography Ka-band Radar Interferometer Payload Thermal Design Challenges 

      Somawardhana, Ruwan P. (44th International Conference on Environmental Systems, 2014-07-13)
      The proposed Surface Water Ocean Topography mission would be a joint NASA/CNES mission with a launch baseline in 2020. This would be the first mission capable of precise measurements of continental water levels (lakes, ...
    • Performance of a Full Scale MABR (CoMANDR 2.0) for Pre-treatment of a Habitation Waste Stream Prior to Desalination 

      Sevanthi, Ritesh; Christenson, Dylan; Cummings, Elizabeth; Nguyen, Kevin; Morse, Audra; Jackson, W. Andrew (44th International Conference on Environmental Systems, 2014-07-13)
      Recycling waste water is a critical and crucial step to support sustainable long term habitation in space. Water is one of the largest contributors to the cost of space travel and the associated life support systems. In ...
    • Use of adsorbent photocatalytic materials for air revitalization in space closed environment 

      Grizzaffi, Lucia; Locantore, Ilaria; Pandi, Arianna; Boscheri, Giorgio; Lamantea, Matteo; Onida, Barbara; Loiacono, Eleonora (44th International Conference on Environmental Systems, 2014-07-13)
      The Air Revitalization is one of the main objectives of the Life Support & Biotechnologies research of RecycLAB TASI Engineering Technological Area. A “small- scale” module mock up, called Athena, has been recently designed ...
    • Performance of Silica Gel in the Role of Residual Air Drying 

      Jan, Darrell; Hogan, John; Koss, Brian; Palmer, Gary H.; Richardson, Tra-My Justine; Knox, James; Linggi, Paul (44th International Conference on Environmental Systems, 2014-07-13)
      Removal of carbon dioxide (CO2) is a necessary step in air revitalization and is often accomplished with sorbent materials. Since moisture competes with CO2 in zeolite sorbent materials, it is necessary to remove the water ...
    • Incorporating Bioastronautics into an Engineering Curriculum 

      Klaus, David M. (44th International Conference on Environmental Systems, 2014-07-13)
      The discipline of Bioastronautics can be summarized as addressing biological, behavioral and medical aspects governing humans and other living organisms in a space flight environment; and includes the design of payloads, ...
    • Advances in Spacecraft Brine Water Recovery: Development of a Radial Vaned Capillary Drying Tray 

      Callahan, Michael R.; Sargusingh, Miriam J.; Pickering, Karen D.; Weislogel, Mark M. (44th International Conference on Environmental Systems, 2014-07-13)
      Technology improvements in the recovery of water from brine are critical to establishing closed-loop water recovery systems, enabling long—duration missions, and achieving a sustained human presence in space. A genre of ...
    • A New Concept Environmental Control System with Energy Recovery Considerations for Commercial Aircraft 

      Long, Chen; Xingjuan, Zhang; Chunxin, Yang (44th International Conference on Environmental Systems, 2014-07-13)
      This paper presents a review on the system types and the latest progress in air cycle environmental control system (ECS) for commercial aircraft, including the pressurized air source of cabin fresh air. Then, a new concept ...
    • Morphing Upper Torso: A Resizable and Adjustable EVA Torso Assembly 

      Jacobs, Shane E. (44th International Conference on Environmental Systems, 2014-07-13)
      Traditional Extravehicular Activity (EVA) spacesuits incorporate either hard or soft upper torso subassemblies as part of their architecture. In either case, these components are of a specific, fixed size and lack provisions ...
    • Conceptual Designs for Volatile Mining Operations in Lunar Cold Trap Environments 

      Kotowick, Kyle; Barmore, David; Geiger, Lynn; Coles, Thomas; Hoffman, Jeffrey (44th International Conference on Environmental Systems, 2014-07-13)
      Long-term lunar habitation is an extraordinarily expensive endeavor, but can be made substantially more feasible through in-situ resource utilization of volatile compounds. One of the most likely locations of such volatiles ...
    • Enhancements to the ISS Phase VI Glove Design 

      Jones, Robert J.; Linsner, Alex; Wyatt, Steve; Scheir, Craig; Muller, Greg; Sung, Joey; Hewes, Linda; Graziosi, David (44th International Conference on Environmental Systems, 2014-07-13)
      This paper describes several technology advancements ILC Dover is developing to improve the current ISS EVA Phase VI glove design. As future missions require better mobility, material enhancements, and new technologies, ...