OrbHab Paper
Trace Contaminant Control for the International Space Station’s Node 1—Analysis, Design, and Verification (2017)
ID: 383 Flag Paper
Title: Trace Contaminant Control for the International Space Station’s Node 1—Analysis, Design, and Verification
Authors: J. Perry
Journal Name: NASA/TP—2017–218235
Year of Publication: 2017
Page Number:
Category: technosphere
Availability: pdf
Detail Page: /papers/383
Web Link: https://ntrs.nasa.gov/api/citations/20170005170/downloads/20170005170.pdf
BoK Link: [[paper:383]]
Abstract
Trace chemical contaminant generation inside crewed spacecraft cabins is a technical andmedical problem that must be continuously evaluated. Although passive control through materialsselection and active control by adsorption and catalytic oxidation devices is employed during normaloperations of a spacecraft, contaminant buildup can still become a problem. Buildup is particularlytroublesome during the stages between the final closure of a spacecraft during ground processingand the time that a crewmember enters for the first time during the mission. Typically, the elapsedtime between preflight closure and first entry on orbit for spacecraft such as Spacelab modules was30 days. During that time, the active contamination control systems are not activated and contami-nants can potentially build up to levels which exceed the spacecraft maximum allowable concentra-tions (SMACs) specified by NASA toxicology experts. To prevent excessively high contaminationlevels at crew entry, the Spacelab active contamination control system was operated for 53 hours justbefore launch. The following narrative presents the technical progression between November 1994 and Janu-ary 1998 for the trace contaminant control technical approach for the International Space Station’s(ISS’s) Node 1 module. This approach benefited from experience gained during the Spacelab pro-gram. These materials, presented in three parts, consist of preliminary analysis, detailed performanceanalysis, and verification analysis.
Title: Trace Contaminant Control for the International Space Station’s Node 1—Analysis, Design, and Verification
Authors: J. Perry
Journal Name: NASA/TP—2017–218235
Year of Publication: 2017
Page Number:
Category: technosphere
Availability: pdf
Detail Page: /papers/383
Web Link: https://ntrs.nasa.gov/api/citations/20170005170/downloads/20170005170.pdf
BoK Link: [[paper:383]]
Abstract
Trace chemical contaminant generation inside crewed spacecraft cabins is a technical andmedical problem that must be continuously evaluated. Although passive control through materialsselection and active control by adsorption and catalytic oxidation devices is employed during normaloperations of a spacecraft, contaminant buildup can still become a problem. Buildup is particularlytroublesome during the stages between the final closure of a spacecraft during ground processingand the time that a crewmember enters for the first time during the mission. Typically, the elapsedtime between preflight closure and first entry on orbit for spacecraft such as Spacelab modules was30 days. During that time, the active contamination control systems are not activated and contami-nants can potentially build up to levels which exceed the spacecraft maximum allowable concentra-tions (SMACs) specified by NASA toxicology experts. To prevent excessively high contaminationlevels at crew entry, the Spacelab active contamination control system was operated for 53 hours justbefore launch. The following narrative presents the technical progression between November 1994 and Janu-ary 1998 for the trace contaminant control technical approach for the International Space Station’s(ISS’s) Node 1 module. This approach benefited from experience gained during the Spacelab pro-gram. These materials, presented in three parts, consist of preliminary analysis, detailed performanceanalysis, and verification analysis.