Browsing by Author "Samplatsky, Darren"
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Item Beyond LEO: Life Support Requirements and Technology Development Strategy(44th International Conference on Environmental Systems, 2014-07-13) Guirgis, Peggy; West, William; Heldmann, Michael; Samplatsky, Darren; Gentry, Gregory; Duggan, MatthewThis paper reviews basic Life Support Systems requirements for a conceptual Earth- Moon Libration Point-2 (EML-2) orbiting facility and conceptual early stage Lunar and Mars bases, highlighting commonalities and unique challenges for each. Recommendations are made for both near-term and long-term key technology development investments in a progressive approach to technology development that supports needs of the above missions and aligns with the current fiscally constrained environment. This approach leverages available commercial-off-the-shelf (COTS) hardware and already developed space-flight hardware, while providing the rationale for a corresponding modestly elevated risk posture intended to bring down development costs, and to prioritize which technologies unavailable through COTS are in highest need of development. The recommendations provide guidance for Life Support Systems technology development planning activities.Item Comparative Assessment of Delivering Consumable Resources versus In-Situ Resource Utilization for Moon and Mars Habitats Life Support Systems(45th International Conference on Environmental Systems, 2015-07-12) West, William; Heldmann, Michael; Scull, Timothy; Samplatsky, Darren; Gentry, Gregory J.; Duggan, Matthew; Klaus, KurtThis paper will estimate oxygen, nitrogen and water resupply needs for a crewed lunar or Martian surface habitat, assuming relevant mission parameters, current ISS levels of loop closure, assumptions on leakage and venting and the addition of laundry and shower facilities. The paper will then identify lunar and Mars ECLS ISRU candidates and trade ISRU vs. delivery of supplies from earth. Lunar ISRU candidates include water and oxygen from putative lunarpolar ice deposits. Mars ISRU candidates include water, oxygen from ice and nitrogen/argon/oxygen from atmospheric constituents. For given assumptions a crossover point for each constituent will be identified where it will become more advantageous to seek ISRU solutions rather than re-supply from earth.Item Environmental Control and Life Support for Deep Space Travel(46th International Conference on Environmental Systems, 2016-07-10) Stapleton, Thomas; Heldmann, Micheal; Schneider, Scott; O'Neill, Jonathan; Samplatsky, Darren; White, Kimberly; Corallo, RogerNASA 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 development of unique methods and design concepts that support in-flight maintenance and repair to support future exploration platforms. This new approach, developing Palletized ECLS Module designs, is intended to allow previously qualified hardware to be readily integrated into evolving exploration life support platforms. The intent of this paper is to summarize the approach to developing these modules and summarize advancements made over the first seven months of development. Areas of advancement expected to be reviewed in this paper include grouping of ECLS functions onto unique modules, developing a list of common components (valves, sensors, fans, etc.), proposing Palletized Module geometry, in-situ integration, and in-flight maintenance features and techniques.Item ISS as a Test Bed for Exploration ECLS Technology Development and Demonstration(47th International Conference on Environmental Systems, 2017-07-16) Gentry, Gregory; Duggan, Matt; West, William; Samplatsky, DarrenThis paper will discuss opportunities for advancing the Environmental Control and Life Support (ECLS) requirements and technologies needed for space exploration beyond low earth orbit, including some lessons learned, items already planned for use on the International Space Station (ISS), along with what should be/might be added. Also discussed will be possible crew training deltas (e.g. time delays) to demonstrate and experience anticipated operational differences (e.g. deep i-level repairs, crew managed local ppO2, ppCO2 and water management).Item Lunar Surface Habitats as a Development Opportunity for Mars Surface Life Support Systems(46th International Conference on Environmental Systems, 2016-07-10) Gentry, Gregory; Duggan, Matt; West, William; Samplatsky, DarrenThe development of Mars surface systems will require extensive development testing to make a first-time human mission to Mars successful and cost-effective. As our nearest surface destination, the Moon provides excellent surface systems analogs and learning opportunities to develop Mars mission equipment, systems, processes and procedures. Among other systems and technologies capable of being tested on the Moon, a lunar habitat is ideal to test many ECLSS technologies and development sensitive architectural features. This paper will outline the path Mars ECLSS surface systems development must take to successfully establish and utilize a lunar habitat test bed by identifying the major steps and capabilities required, when these capabilities must be implemented to meet an achievable timeline for a mission to Mars and what other development must happen in parallel. Any long-term-stay surface habitat ECLSS will have many commonalities but also many major differences with the International Space Station and the Apollo Program ECLSS. These commonalities and differences will be discussed. The benefits of this approach to achieving a successful Mars mission will be summarized.Item Spacecraft Human Rating / Human Safe Requirements Impacts on Life Support Systems Design(48th International Conference on Environmental Systems, 2018-07-08) Gentry, Gregory; Duggan, Matt; Samplatsky, Darren; West, WilliamThis paper will discuss concepts of human safety for spacecraft design and operation and how those concepts might be applied for deep space exploration at the moon and beyond. After discussing the history of the human rating of spacecraft and introducing a new definition of human safe, this paper will examine deep space Environmental Control and Life Support Systems (ECLSS) in this context and discuss the changes from a traditional human rating that would be introduced by the human safe approach.