The International Conference on Environmental Systems, or ICES (known prior to 1990 as the Intersociety Conference on Environmental Systems), is an annual technical conference focusing on human spaceflight technology and space human factors. Session topics include: Environmental Control and Life Support Systems (ECLSS), thermal control, life sciences, extra-vehicular activity (EVA) systems (including space suit design and human-robot interaction), space architecture, and mission planning for exploration. The conference has taken place annually since 1971.

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Recent Submissions

  • Prediction Spacecraft Pressures during Launch 

    Schweickart, Russell; Devaud, Genevieve (50th International Conference on Environmental Systems, 7/12/2021)
    Every spacecraft must vent all enclosed air during launch or else risk a structural failure due to the resulting differential pressure. For this reason, guidelines for providing vent paths are typically part of the ...
  • Water Recovery from Human Metabolic Waste: System Design, Analysis, and Preliminary Results 

    Boyce, Stephanie; Huff, Benjamin; Jordan, Neil; Sheets, Kyle; Lofton, Zachary; Stokke, Kristy; Richardson, Tra-My Justine (50th International Conference on Environmental Systems, 7/12/2021)
    Paragon Space Development Corporation is developing a system to recover water from human metabolic waste, i.e. feces, in support of NASA's Water Recovery Technology Roadmap. Through a NASA Phase II Small Business Innovation ...
  • The ASIM Mission -- A Contamination Control and Thermal Approach 

    Mooney, Cathal; Persson, Jan; Bhanderi, Dan D.V.; Tacconi, Matteo; Mikkelsen, Ole; Davidsen, Peter; Hartnack, Ole (50th International Conference on Environmental Systems, 7/12/2021)
    The Atmosphere-Space Interactions Monitor (ASIM) is a European Space Agency (ESA) payload developed by the ASIM industrial consortium with Terma A/S, Denmark, as prime contractor. ASIM is mounted on the exterior of the ...
  • Biomimetic Membrane Performance in Pressure Retarded Osmosis for Water Reclamation Applications 

    Santiago-Martoral, Liz; Figueroa, Adrialis; Nicolau, Eduardo (50th International Conference on Environmental Systems, 7/12/2021)
    Improvements in water reclamation techniques are becoming increasingly popular due to freshwater insufficiency, contamination of water sources, and poor maintenance of water supplies. Since water scarcity represents a ...
  • Thermal Design of ASTHROS 

    Coker, Robert; Schulze, Erich; Bernasconi, Pietro; Kawamura, Jonathan; Pineda, Jorge; Siles, Jose (50th International Conference on Environmental Systems, 7/12/2021)
    The Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths (ASTHROS), is a 2.5-m balloon-borne observatory that will make the first spectrally-resolved high spatial ...
  • Exploration Portable Life Support System Hatch Component Implementation and Testing 

    Todd, Kristina; Hostetler, John; Espinosa, Nick; Chullen, Cinda; Stein, James (50th International Conference on Environmental Systems, 7/12/2021)
    NASA has plans to go back to the Moon. In order to do this, a new spacesuit is being designed for microgravity, cislunar, and lunar surface exploration. The design for the Exploration Extravehicular Mobility Unit (xEMU) ...
  • Incorporation of Planetary Protection Knowledge Gaps into Agency Capability Development Planning 

    Spry, J Andy; Siegel, Bette; Pratt, Lisa; Kminek, Gerhard (50th International Conference on Environmental Systems, 7/12/2021)
    Since its start in 2016, the COSPAR workshop series on "Planetary protection requirements for human extraterrestrial missions" has generated and refined a set of planetary protection (PP) knowledge gaps (KGs) which, if ...
  • Direct Contact Ultrasonic Drying Rate and Efficiency Investigation for Spacecraft Solid Waste Management 

    Momen, Ayyoub; Shelander, Connor; Bigelow, Jonathan (50th International Conference on Environmental Systems, 7/12/2021)
    The goal of our study is to investigate the drying performance of the direct contact ultrasonic drying for bagged human solid waste relevant to the current waste management system at the ISS. Unlike the conventional thermal ...
  • Humidity Condensate Stabilization Using an Engineered Biologically Active Storage Tank 

    Jackson, William; Pourbavarsad, Maryam Salehi; Jalalieh, Behnaz Jalili; Muirhead, Dean; Owuor, Juliet (50th International Conference on Environmental Systems, 7/12/2021)
    Water recovery on ISS reduces resupply costs. Humidity condensate (HC) is a major source of available water on ISS but contains both organic and inorganic contaminants. Organic carbon and nitrogen in the HC can support ...
  • Scaled Automated Pressure Regulation System for Analog Moon and Mars Habitat 

    Marlowe, Meghan; Alraeesi, Ahmed; Velez, Gustavo Aguilar; Marlar, James; Wibisono, Arfan; Scheidemantel, Coby; Staats, Kai; Adams, John (50th International Conference on Environmental Systems, 7/12/2021)
    As humans look to travel off-world, sealed habitats will be essential for life support in long-duration missions. Previous closed ecosystem experiments have ranged from closed-loop habitats sustaining a single individual ...
  • A Ground Testing Program to Verify Lunar Dust-Tolerant Hardware for the Artemis Mission 

    Meyer, Marit; Sumlin, Benjamin (50th International Conference on Environmental Systems, 7/12/2021)
    In preparation for NASA�s Artemis Mission that will return humans to the surface of moon by 2024, an extensive test campaign will be undertaken to understand the effects of lunar dust contamination on equipment. Historically, ...
  • Thermo-elastic analysis in the frequency domain using the LISA instrument as a case study 

    Etchells, James (50th International Conference on Environmental Systems, 7/12/2021)
    The thermo-mechanical stability requirements for the LISA instrument are some of the most demanding of any space mission. The associated analysis challenges to design the instrument and verify the requirements are well ...
  • Closing the Water Loop for Exploration: 2020-2021 Status of the Brine Processor Assembly 

    Kelsey, Laura; Boyce, Stephanie; Speight, Garland; Pasadilla, Patrick; Tewes, Philipp; Rabel, Emily; Meyer, Caitlin (50th International Conference on Environmental Systems, 7/12/2021)
    Paragon Space Development Corporation has developed a Brine Processor Assembly (BPA) for demonstration on the International Space Station (ISS). BPA will recover water from urine brine produced by the ISS Urine Processor ...
  • The worst-case thermal environment parameters of small satellites based on Real-Observation Data 

    Gonz�lez-B�rcena, David; Sanz-Andres, Angel; Perez-Grande, Isabel; Bermejo-Ballesteros, Juan (50th International Conference on Environmental Systems, 7/12/2021)
    The thermal environmental conditions that define the worst-case analyses of Low Earth Orbit (LEO) satellites have been selected based on the Criteria established by National Aeronautics and Space Administration (NASA) in ...
  • Advanced Thermal Model Correlation Using Reduced-Order Models 

    Hengeveld, Derek; Moulton, Jacob (50th International Conference on Environmental Systems, 7/12/2021)
    Uncorrelated thermal models are often based on an assortment of uncertain input parameters. Examples include interface conductance based on handbook values and estimated insulation e* values. Because of this, it is hard ...
  • Experiments of the Prototype for a Stratospheric Balloon-borne Heat Transfer Laboratory 

    P�rez, Lilian Peinado; Ayape, Fernando; Fern�ndez-Soler, Alejandro; Mart�n, Jonathan; B�rcena, David Gonz�lez; Muntean, Victor; Perez-Grande, Isabel (50th International Conference on Environmental Systems, 7/12/2021)
    Balloon-borne scientific missions are gaining interest in recent years due to their potential to study the Earth, its atmosphere and the outer space with lower costs and risks than a launched space mission. Furthermore, ...
  • Correlation of a thermal model using infra-red camera data for thermo-elastic predictions 

    Vaughan, Matthew; Laine, Benoit; Etchells, James; Rutherford, Kimberly; Bursachi, Noe; Kellner, Maximilian (50th International Conference on Environmental Systems, 7/12/2021)
    The representation of the temperature gradients across a spacecraft structure with a thermal model is key to have a good predictability of any thermo-elastic deformations. This is often not the objective of thermal models ...
  • A Fecal Processing Technology Trade Study for Water Recovery in Various Mission Duration Scenarios 

    Powell, Camilah; Waguespack, Glenn; Ewert, Michael (50th International Conference on Environmental Systems, 7/12/2021)
    To achieve long endurance human space missions such as a trip to Mars, a fully recycled or �closed loop� water system is almost essential. Even for shorter duration missions in Earth orbit, lunar orbit or on the surface ...
  • Outer Boot Sole System 

    Stapleton, Thomas; Eddy, Douglas; Hamill, Joseph (50th International Conference on Environmental Systems, 7/12/2021)
    The Apollo Spacesuit Boots which were used in 16 Extravehicular Activities (EVAs) have performed well over the course of 6 landing missions, but several opportunities for enhancement were identified throughout the course ...
  • Integrative Fit Assessments for Multi-Component Stack-Up of xEMU 

    Davis, Kristine; Rhodes, Richard; Rajulu, Sudhakar; Hernandez, Yaritza; Benson, Elizabeth; Jarvis, Sarah; Gupta, Garima; Kim, Han (50th International Conference on Environmental Systems, 7/12/2021)
    Sufficient mobility, proper fit, and adequate comfort are critical design goals for the Exploration Extravehicular Mobility Unit (xEMU), NASA�s next generation spacesuit. While component-wise fit assessments can provide ...

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