International Space Station (ISS) Carbon Dioxide Removal Assembly (CDRA) Desiccant/Adsorbent Bed (DAB) Orbital Replacement Unit (ORU) RedesignThe 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 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.
Document ID
20070018867
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Reysa, Richard P. (MEI Technologies, Inc. Seabrook, MD, United States)
Lumpkin, John P. (Boeing Co. United States)
Sherif, Dian El (Honeywell Space Systems Glendale, AZ, United States)
Kay, Robert (Honeywell Space Systems Glendale, AZ, United States)
Williams, David E. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Subject Category
Mechanical Engineering
Report/Patent Number
07ICES-307
Meeting Information
Meeting: 37th International Conference on Environmental