A molecular-sieve-based portable life support system (PLSS) for microgravity extravehicular activity (EVA) has been designed to minimize weight, volume, and expenditures of consumables for missions with numerous EVA's. The PLSS incorporates a regenerable two-bed molecular sieve system for CO2 and humidity removal, and a regenerable nonventing thermal sink for temperature control.The molecular-sieve-based PLSS design is modular. This approach simplifies initial manufacturing tasks, facilitates subsequent maintenance tasks, and provides the potential to tailor the PLSS to the specific environmental parameters (metabolic load, radiative environment, duration) of a given EVA excursion.This paper presents the molecular-sieve/regenerative nonventing thermal sink PLSS design and discusses the analyses and trade studies which support the design. The modular design and its benefits are discussed, and the reduced launch weight requirements of the regenerable system are quantified.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    DESIGN OF A MOLECULAR-SIEVE-BASED PORTABLE LIFE SUPPORT SYSTEM


    Additional title:

    Sae Technical Papers


    Contributors:
    MacKnight, Allen (author) / Strumpf, Hal (author) / Hart, Joan (author) / Fuhs, Susan (author)

    Conference:

    International Conference On Environmental Systems ; 1993



    Publication date :

    1993-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Portable medical molecular sieve oxygenerator and installation method thereof

    ZHANG ZHEWEI / YANG WEIMING | European Patent Office | 2024

    Free access

    Exploration Portable Life Support System Hatch Component Design

    Kristina Todd / Nicolas Espinosa / John Hostetler et al. | NTRS




    Apollo portable life-support system -- Development status

    Kincaid, W.C. | Engineering Index Backfile | 1965