Recent Submissions

  • Life Support and Environmental Monitoring International System Maturation Team Considerations 

    Molly Anderson; Robyn Gatens; Toshitami Ikeda; Tsuyoshi Ito; Johannes Witt; Scott Hovland (46th International Conference on Environmental Systems, 2016-07-10)
    Human exploration of the solar system is an ambitious goal. Future missions to Mars or other planets will require the cooperation of many nations. Exploration concepts have been gathered by the International Space ...
  • Probability Estimates of Solar Proton Doses During Periods of Low Sunspot Number for Short Duration Missions 

    William Atwell; Allan Tylka; William Dietrich; Kristina Rojdev; Courtney Matzkind (46th International Conference on Environmental Systems, 2016-07-10)
    In an earlier paper presented at ICES in 2015, we investigated solar particle event (SPE) radiation exposures (absorbed dose) to small, thinly-shielded spacecraft during a period when the monthly smoothed sunspot number ...
  • Environmental Control and Life Support for Deep Space Travel 

    Thomas Stapleton; Micheal Heldmann; Scott Schneider; Jonathan O'Neill; Darren Samplatsky; Kimberly White; Roger Corallo (46th International Conference on Environmental Systems, 2016-07-10)
    NASA is working with UTAS Space, Land, and Sea to develop concepts that group Environmental Control and Life Support (ECLS) systems into logical palletized modules allowing for the maximum use of common components and the ...
  • ANITA2 on its way now to ISS - Latest results and developments of the multicomponent ISS Air Analyser 

    Timo Stuffler; Peter Hofmann; Atle Honne (46th International Conference on Environmental Systems, 2016-07-10)
    The advanced ISS air monitor ANITA2 follows the European precursor mission ANITA1, which in 2007 an 2008 successfully operated on ISS for 11 months. ANITA1 delivered information on the air conditions analysing in parallel ...
  • Non-Thermal Fresh Food Sanitation by Atmospheric Pressure Plasma 

    Ross Remiker; R. J. Surdyk; Robert Morrow (46th International Conference on Environmental Systems, 2016-07-10)
    The Non-Thermal Sanitation by Atmospheric Pressure Plasma (NTSAPP) system was developed for sanitizing fresh food on long-duration space missions. Plasmas are ionized gases generated by electrical discharges and composed ...
  • Carbon Dioxide Removal Technologies for Space Vehicles - Past, Present, and Future 

    Dale Winton; Jun Isobe; Phoebe Henson; Allen MacKnight; Stephen Yates; Daryl Schuck (46th International Conference on Environmental Systems, 2016-07-10)
    As NASA looks forward to human missions to long term deep space missions and the technologies required for them, it is essential to look back at the technologies that have been used to date in Low Earth Orbit and short ...
  • Silver deposition on wetted materials used in the potable water system of manned spacecrafts 

    Maria Petala; Vasilios Tsiridis; Efthymios Darakas; Ioanna Mintsouli; Sotirios Sotiropoulos; Margaritis Kostoglou; Thodoris Karapantsios; Pierre Rebeyre (46th International Conference on Environmental Systems, 2016-07-10)
    Silver is used as the biocide for potable water on the Russian Segment of the International Space Station and is also intended to be used for NASA Orion spacecraft. Studies about the stability of water quality containing ...
  • Operation and Development Status of the Spacecraft Fire Experiments (Saffire) 

    Gary Ruff; David Urban (46th International Conference on Environmental Systems, 2016-07-10)
    Since 2012, a series of Spacecraft Fire Experiment (Saffire) have been under development by the Spacecraft Fire Safety Demonstration (SFS Demo) project, funded by NASA’s Advanced Exploration Systems. The overall objective ...
  • Gravity-Invariant Condition of Water Sublimator Characteristic Parameter Design: Analysis and Experiment 

    Yuying Wang; Jindong Li; Xianwen Ning; Jianyin Miao; Zhong Qi (46th International Conference on Environmental Systems, 2016-07-10)
    Water sublimator is a kind of thermal control device, which takes advantage of the high latent heat of water and can reject spacecraft waste heat by evaporating/sublimating water to vacuum environment. Thus, sublimator ...
  • James Webb Space Telescope Thermal Pathfinder Test Development 

    Angelique Davis; Wes Ousley; William Burt; Christine Cottingham (46th International Conference on Environmental Systems, 2016-07-10)
    The James Webb Space Telescope (JWST), scheduled for launch in 2018, includes a 6m primary mirror passively cooled below 55 Kelvin. The observatory cannot be optically or thermally tested as a system at flight temperatures ...
  • Resource Tracking Model Updates and Trade Studies 

    Joe Chambliss; Imelda Stambaugh; Michael Moore (46th International Conference on Environmental Systems, 2016-07-10)
    The Resource Tracking Model has been updated to capture system manager and project manager inputs. Both the Trick/General Use Nodal Network Solver Resource Tracking Model (RTM) simulator and the RTM mass balance spreadsheet ...
  • Development of an Engineering Model of a monophasic Electro Hydro Dynamic (EHD) pumped fluid loop within the frame of the NEOSAT pre-development activities 

    Robert Thorslund; Are Bjorneklett; Mikael Antelius; Tisna Tjiptahardja; Thomas Huens; Arnaud Scommegna; Andy Walker (46th International Conference on Environmental Systems, 2016-07-10)
    This publication presents the development of a novel pumped fluid loop thermal regulation system, completely free of moving parts. This technology is using electro hydro dynamic pumping of a dielectric coolant. This pumping ...
  • Radiation measurements of the Mars Science Lab Radiation Assessment Detector (MSL-RAD) on the surface of Mars 

    Guenther Reitz; Donald M. Hassler; Robert F. Wimmer-Schweingruber; Carry Zeitlin; Daniel Matthiae; Bent Ehresmann; Jingnan Guo; Jan Koehler (46th International Conference on Environmental Systems, 2016-07-10)
    The Radiation Assessment Detector (RAD) was designed to characterize the radiation environment as “Life Limiting Factor” to habitability and to help to prepare for future human exploration of Mars. The Mars Science Laboratory ...
  • 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 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 ...
  • Chemical Characterization and Identification of Organosilicon Contaminants in ISS Potable Water 

    John E. Straub I I; Debrah K. Plumlee; Daniel B. Gazda; William T. Wallace (46th International Conference on Environmental Systems, 2016-07-10)
    2015 marked the 15th anniversary of continuous human presence on board the International Space Station. During the past year crew members from Expeditions 42-46, including two participating in a one-year mission, continued ...
  • Investigations into the Performance of Membrane-Aerated Biological Reactors Treating a Space Based Waste Stream 

    Ritesh Sevanthi; Dylan Christenson; William Jackson; Audra Morse; Caitlin Meyer; Leticia Vega; Sarah Shull (46th International Conference on Environmental Systems, 2016-07-10)
    Two demonstration size membrane aerated biological reactors (MABR) CoMANDR 1.0 and CoMANDR 2.0 have previously demonstrated their ability to stabilize an early planetary base (EPB) waste stream over operating periods of ...
  • High Performance Torso Cooling Garment 

    Bruce Conger; Janice Makinen (46th International Conference on Environmental Systems, 2016-07-10)
    The concept proposed in this paper is to improve thermal efficiencies of the liquid cooling and ventilation garment (LCVG) in the torso area, which could facilitate removal of LCVG tubing from the arms and legs, thereby ...
  • Design Status of the Advanced Closed Loop System ACLS for Accommodation on the ISS 

    Klaus Bockstahler; Ruediger Hartwich; Carsten Matthias; Daniele Laurini; Johannes Witt; Scott Hovland (46th International Conference on Environmental Systems, 2016-07-10)
    The Advanced Closed-Loop System ACLS is a regenerative life support system for closed habitats. With regenerative processes the ACLS covers the life support functions of CO2 removal, Oxygen generation and CO2 Reprocessing. ACLS ...
  • Sensitivity Analysis of the Advanced Missions Cost Model 

    Andrew Owens; Olivier de Weck (46th International Conference on Environmental Systems, 2016-07-10)
    Strategic decisions with regard to system architecture, technology investment, and mission planning for complex projects must balance cost, risk, and performance – potentially across years of development and operation. ...

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