Development of a Multi-Stage Filter System for Cabin Ventilation Systems on the ISS and Future Deep Space Missions



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48th International Conference on Environmental Systems


The National Aeronautics and Space Administration’s (NASA’s) deep space exploration missions will be of significant duration requiring long-life and reliably performing spacecraft cabin ventilation filters. A particulate filter system is being developed at NASA Glenn Research Center (GRC) to meet the challenges of these remote and long duration missions. The capabilities and features of the filter system are expected to expand the life and reduce the maintenance requirements over that of the current ISS filter by providing pre-filtration stages with novel regenerable techniques. The filter system is also designed to be compatible with the interfaces and performance requirements of the ISS distributed ventilation architecture in the US modules to facilitate testing on ISS type test or mock up platforms. Currently, a prototype of the filter system is undergoing tests in a custom configured filter test stand at the NASA GRC. The test stand provides the same range of flow rates produced on the International Space Station (ISS) distributed architecture, and is equipped and instrumented to perform filter tests based on industrial test standards. The test stand has been used successfully to perform filter and flow performance test on returned ISS Bacterial Filter Elements. Similar test protocols were used to characterize the performance of the current filter system. The filter system was tested with different performing grades of filter media and different particle standards that simulate the range of particulate matter particles and debris the filter will see during a mission. This paper will present results and analysis of the test data to guide and provide input to the next generation filter system.


Juan Agui , NASA
Robert Green, NASA
R Vijayakumar, Aerfil
ICES510: Planetary and Spacecraft Dust Properties and Mitigation Technologies
The 48th International Conference on Environmental Systems was held in Albuquerque, New Mexico, USA on 08 July 2018 through 12 July 2018.


Filter, Deep Space Missions, ISS, Regenerable