- Author
-
Fu, T. T.
- Title
- Smoke Detection in Hyperbaric Chambers: An Experimental Study.
- Coporate
- Naval Civil Engineering Lab., Port Hueneme, CA
- Report
-
NCEL-TN-1294,
July 1973,
30 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
hyperbaric chambers
|
smoke
|
fire detection systems
|
hydrocarbons
|
warning systems
|
controlled atmospheres
|
fire prevention
|
gas detectors
|
pressure vessels
- Identifiers
- shipboard
- Abstract
- The feasibility of smoke detection for manned hyperbaric chambers by measuring the total hydrocarbon content in the chamber gas and by water condensation on smoke particles was studied. A Beckman 400 hydrocarbon analyzer and an Environment/One incipient fire detector were used for this study. Tests were conducted during a typical 1000 fsw drive at the Navy Experimental Diving Unit and with simulated dives in both compressed air and helium to 210 fsw using the 2.5 cu ft pressure vessel at NCEL. The results show that the Beckman 400 hydrocarbon analyzer method is inconvenient to use and the Environment/One detector performed satisfactorily after modification.