International Space Station (ISS) Carbon Dioxide Removal Assembly (CDRA) Desiccant/Adsorbent Bed (DAB) Orbital Replacement Unit (ORU) Redesign 2007-01-3181
The Carbon Dioxide Removal Assembly (CDRA) is a part of the International Space Station (ISS) Environmental Control and Life Support (ECLS) system. The CDRA provides carbon dioxide (CO2) removal from the ISS on-orbit modules. Currently, the CDRA is the secondary removal system on the ISS, with the primary system being the Russian Vozdukh. Within the CDRA are two Desiccant/Adsorbent Beds (DAB), which perform the carbon dioxide removal function. The DAB adsorbent containment approach required improvements with respect to adsorbent containment. These improvements were implemented through a redesign program and have been implemented on units on the ground and returning from orbit.
This paper presents a DAB design modification implementation description, a hardware performance comparison between the unmodified and modified DAB configurations, and a description of the modified DAB hardware implementation into the on-orbit CDRA.
Citation: Reysa, R., Lumpkin, J., El Sherif, D., Kay, R. et al., "International Space Station (ISS) Carbon Dioxide Removal Assembly (CDRA) Desiccant/Adsorbent Bed (DAB) Orbital Replacement Unit (ORU) Redesign," SAE Technical Paper 2007-01-3181, 2007, https://doi.org/10.4271/2007-01-3181. Download Citation
Richard P. Reysa, John P. Lumpkin, Dina El Sherif, Robert Kay, David E. Williams
MEI Technologies, Inc., The Boeing Company, Honeywell Space Systems, National Aeronautics and Space Administration
International Conference On Environmental Systems
SAE 2007 Transactions Journal of Aerospace-V116-1