Technical Paper
Performance and Endurance Testing of a Prototype Carbon Dioxide and Humidity Control System for Space Shuttle Extended Mission Capability
1985-07-01
851374
A regenerative carbon dioxide (CO2) and humidity control system which uses a polyethyleneimine sorbent material (designated HS-C) is being developed for potential uses in extended duration Space Shuttle missions. The system design offers a substantial weight saving over the baseline Shuttle lithium hydroxide (LiOH) CO2 removal system for a mission beyond four men and 7 days. Performance and endurance testing of a flight prototype HS-C system was recently conducted by NASA Johnson Space Center to evaluate its capability and reliability under simulated Shuttle cabin conditions. The testing included 10 days of performance evaluation, 60 days of endurance, at 101,325 N/m2 (14.7 psia), and 5 days of performance at a 70,300 N/m2 (10.2 psia) cabin pressure. This paper describes the objectives, approach, System configuration, and test condition matrix/timeline of the testing.
