Performance of Silica Gel in the Role of Residual Air Drying
Date
2014-07-13
Journal Title
Journal ISSN
Volume Title
Publisher
44th International Conference on Environmental Systems
Abstract
Removal of carbon dioxide (CO2) is a necessary step in air revitalization and is often accomplished with sorbent materials. Since moisture competes with CO2 in zeolite sorbent materials, it is necessary to remove the water first. This is typically accomplished in two stages: “bulk” removal and “residual” drying. Silica gel is used as the bulk drying material in the Carbon Dioxide Removal Assembly (CDRA) in operation on ISS. There has been some speculation that silica gel may also be capable of serving as the residual drying material. This paper describes test apparatus and procedures for determining the performance of silica gel in residual air drying.
Description
The 44th International Conference on Environmental Systems was held in Tuscon, Arizona, USA on 13 July 2014 through 17 July 2014.
Darrell Jan, NASA Ames Research Center, USA
John Hogan, NASA Ames Research Center, USA
Brian Koss, NASA Ames Research Center, USA
Gary H. Palmer, NASA Ames Research Center, USA
Tra-My Justine Richarson, CSS-Dynamac Corporation, NASA Ames Research Center, USA
James Knox, NASA Marshall Space Flight Center, USA
Paul Linggi, University Space Research Association, NASA Ames Research Center, USA
Darrell Jan, NASA Ames Research Center, USA
John Hogan, NASA Ames Research Center, USA
Brian Koss, NASA Ames Research Center, USA
Gary H. Palmer, NASA Ames Research Center, USA
Tra-My Justine Richarson, CSS-Dynamac Corporation, NASA Ames Research Center, USA
James Knox, NASA Marshall Space Flight Center, USA
Paul Linggi, University Space Research Association, NASA Ames Research Center, USA