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Humidifier Development and Applicability to the Next Generation Portable Life Support System
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Author and Affiliation:
Conger, Bruce(Hamilton Sundstrand Corp., Thermal and Environmental Analysis, Houston, TX, United States);
Sompayrac, Robert(Hamilton Sundstrand Corp., Thermal and Environmental Analysis, Houston, TX, United States);
Barnes, Bruce(Jacobs Engineering Group, Inc., Thermal and Environmental Analysis, Houston, TX, United States);
Paul, Heather L.(NASA Johnson Space Center, Houston, TX, United States)
Abstract: A development effort at the NASA Johnson Space Center investigated technologies to determine whether a humidifier would be required in the Portable Life Support System (PLSS) envisioned for future exploration missions. The humidifier has been included in the baseline PLSS schematic since performance testing of the Rapid Cycle Amine (RCA) indicates that the RCA over-dries the ventilation gas stream. Performance tests of a developmental humidifier unit and commercial off-the-shelf (COTS) units were conducted in December 2009. Following these tests, NASA revisited the need for a humidifier via system analysis. Results of this investigation indicate that it is feasible to meet humidity requirements without the humidifier if other changes are made to the PLSS ventilation loop and the Liquid Cooling and Ventilation Garment (LCVG).
Publication Date: Jan 01, 2010
Document ID:
20100039816
(Acquired Dec 01, 2010)
Subject Category: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Report/Patent Number: JSC-CN-21874
Document Type: Conference Paper
Meeting Information: 41st International Conference on Environmental Systems; 17-21 Jul. 2011; Portland, OR; United States
Meeting Sponsor: American Inst. of Aeronautics and Astronautics; Reston, VA, United States
Contract/Grant/Task Num: WBS 903184.20.02.02.01
Financial Sponsor: NASA Johnson Space Center; Houston, TX, United States
Organization Source: NASA Johnson Space Center; Houston, TX, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: PORTABLE LIFE SUPPORT SYSTEMS; HUMIDITY; LIQUID COOLING; VENTILATION; COMMERCIAL OFF-THE-SHELF PRODUCTS; PERFORMANCE TESTS; SYSTEMS ANALYSIS; SYSTEMS ENGINEERING; GAS STREAMS
Availability Notes: Abstract Only
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