Temperature and Pressure Effects on Sodasorb and Baralyme
NAVAL ACADEMY ANNAPOLIS MD
Pagination or Media Count:
Baralyme and sodasorb used by the U.S. Navy to remove the carbon dioxide in closed and semiclosed respirators. In this experiment, the two absorbents were studied in their effects of changing the temperature and pressure of the breathing apparatus. The inlet gas contained 2.5 surface equivalent carbon dioxide, and passed through the absorbent canister at a constant rate of about 40 litersminute. The gas was humidified to 100 for all tests. The inlet gas temperatures ranged from -3C to 31C at 1 ATA. The pressures ranged from 2 ATA to 4 ATA at 30C. The canister held 400 grams of absorbent for each test. The efficiency of the absorbent decreased as temperature decreased. The results from pressure tests indicated decreasing efficiency with depth.
- Life Support Systems