Browse Publications Technical Papers 2008-01-2178
2008-06-29

International Space Station Environmental Control and Life Support System Changes for Increasing the ISS Crew Size to Six Crew Members and for Shuttle Retirement 2008-01-2178

With the long anticipated change to increase the International Space Station (ISS) crew size from three to six crew members and the retirement of the Space Shuttle, changes are in work to the International Space Station (ISS) Environmental Control and Life Support (ECLS) System to support the increased on-orbit crew size and their continued operations. The Space Shuttle had provided high pressure oxygen resupply, high pressure nitrogen resupply, water resupply, atmosphere gaseous make up when the Space Shuttle is docked to ISS, and logistic cargo supply/return capability to ISS. Without the Space Shuttle additional changes need to be made to the ISS ECLS System to support the six crew members post Assembly Complete (AC). This will be in addition to the changes that were needed to support doubling the nominal ISS crew size from three to six crew members. This paper will provide an overview of the changes to support six crew members, changes due to the Space Shuttle retirement, and how they all fit together to support the future operations on ISS post AC.

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