Proposed Schematic for an Advanced Development Lunar Portable Life Support System

Conger, Bruce; Chullen, Cinda; Barnes, Bruce; Leavitt, Greg

doi:10.2514/6.2010-6038

Cited by 9 publications

(3 citation statements)

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“…The latest published PLSS schematic can be found in the paper entitled "Proposed Schematic for an Advanced Development Lunar Portable Life Support System," presented at the 40th International Conference on Environmental Systems in Barcelona, Spain in July 2010. 3 Currently, the PLSS schematic is undergoing minor modifications to continually simplify the system and ensure that it meetings evolving requirements. The PLSS schematic for test purposes is shown in Fig.…”

Section: B Plss Architecturementioning

confidence: 99%

“…The humidity control provides comfort to the CM and prevents helmet fogging. 3 The state-of-the-art technology is shown in Table 2 for the associated parameter with thresholds and goals provided. The EMU components are the current state of the art.…”

Section: B Ventilation Subsystemmentioning

confidence: 99%

“…2 Because the EVA spacesuit supports a single CM as a stand-alone system, the EVA spacesuit is often referred to as a "mini spacecraft" or a "one-person spacecraft". 3 EVA spacesuits have allowed CMs to walk on the surface of the Moon, save Skylab, inspect critical components outside the Space Shuttle, build the International Space Station (ISS), capture satellites, repair the Hubble Space Telescope, and perform many other critical jobs during the history of human space flight. Just as in the past, a future EVA spacesuit, whether designed for orbital operations or S planetary surface explorations systems, must continue to be safe and reliable, and must provide a high degree of performance capabilities.…”

Section: Introductionmentioning

confidence: 99%

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Extravehicular Activity Technology Development Status and Forecast

Chullen

Westheimer

2011

41st International Conference on Environmental Systems

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The goal of NASA's current EVA technology effort is to further develop technologies that will be used to demonstrate a robust EVA system that has application for a variety of future missions including microgravity and surface EVA. Overall the objectives will be to reduce system mass, reduce consumables and maintenance, increase EVA hardware robustness and life, increase crew member efficiency and autonomy, and enable rapid vehicle egress and ingress. Over the past several years, NASA realized a tremendous increase in EVA system development as part of the Exploration Technology Development Program and the Constellation Program. The evident demand for efficient and reliable EVA technologies, particularly regenerable technologies was apparent under these former programs and will continue to be needed as future mission opportunities arise. The technological need for EVA in space has been realized over the last several decades by the Gemini, Apollo, Skylab, Space Shuttle, and the International Space Station (ISS) programs. EVAs were critical to the success of these programs. Now with the ISS extension to 2028 in conjunction with a current forecasted need of at least eight EVAs per year, the EVA hardware life and limited availability of the Extravehicular Mobility Units (EMUs) will eventually become a critical issue. The current EMU has successfully served EVA demands by performing critical operations to assemble the ISS and provide repairs of satellites such as the Hubble Space Telescope. However, as the life of ISS and the vision for future mission opportunities are realized, a new EVA systems capability will be needed and the current architectures and technoliges under development offer significant improvements over the current flight systems. In addition to ISS, potential mission applications include EVAs for missions to Near Earth Objects (NEO), Phobos, or future surface missions. Surface missions could include either exploration of the Moon or Mars. Providing an EVA capability for these types of missions enables in-space construction of complex vehicles or satellites, hands on exploration of new parts of our solar system, and engages the public through the inspiration of knowing that humans are exploring places that they have never been before. This paper offers insight into what is currently being developed and what the potential opportunities are in the forecast.

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Section: B Plss Architecturementioning

confidence: 99%

Section: B Ventilation Subsystemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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