Browse Publications Technical Papers 2002-01-2300
2002-07-15

The Interaction of Spacecraft Cabin Atmospheric Quality and Water Processing System Performance 2002-01-2300

Although designed to remove organic contaminants from a variety of wastewater streams, the planned U.S. and present Russian-provided water processing systems on board the International Space Station (ISS) have capacity limits for some of the more common volatile cleaning solvents used for housekeeping purposes. Using large quantities of volatile cleaning solvents during the ground processing and in-flight operational phases of a crewed spacecraft such as the ISS can lead to significant challenges to the water processing systems. To understand the challenges facing the management of water processing capacity, the relationship between cabin atmospheric quality and humidity condensate loading is presented. This relationship is developed as a tool to determine the cabin atmospheric loading that may compromise water processing system performance. A comparison of cabin atmospheric loading with volatile cleaning solvents from the ISS, Mir, and Shuttle are presented to predict acceptable limits for maintaining optimal water processing system performance.

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