Feasibility Evaluation of a Reusable Contaminant Filter Canister for Use as an Oxygen Breathing Apparatus Trainer
Final rept. 1 Jan-14 Oct 1983
UNITED TECHNOLOGIES CORP WINDSOR LOCKS CT HAMILTON STANDARD DIV
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A reusable training canister, OBAT, is being developed for use with the Navy Oxygen Breathing Apparatus, OBA, during training exercises within the controlled environment of the 19F1 Fire Fighter Trainer. Unlike the closed system of the standard OBA, the open OBA system in the 19F1 trainer application requires both gaseous contaminant and particulate removal. The gaseous contaminants of concern are carbon monoxide, carbon dioxide, propane, and nitrogen dioxide. The particulates to be removed are butylated triphenal phosphate used as simulated smoke and sodium bicarbonate used as a simulated dry powder extinguishant. A feasibility model filter canister was designed and built for use in verification testing of the entire OBAT concept. The canister was tested against various levels of the gaseous contaminants at the anticipated extremes of temperature and humidity. The particulate filters were tested under training conditions in the 19F1 Fire Fighter Trainer. Additionally, the total system, OBA and OBAT, was tested for air flow resistance, and the temperature transient in the facemask was measured with the system operating at various high ambient temperatures.
- Life Support Systems