Accession Number : AD0912750

Title :   Smoke Detection in Hyperbaric Chambers - An Experimental Study.

Descriptive Note : Technical note,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s) : Fu, T. T.

Report Date : JUL 1973

Pagination or Media Count : 29

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 dive 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. (Author)

Descriptors :   *GAS DETECTORS), (*PRESSURE VESSELS, FIRE SAFETY), (*FIRE ALARM SYSTEMS, SMOKE, DETECTION, HYDROCARBONS, OXYGEN, CONTROLLED ATMOSPHERES, OPERATION, PARTICLES, NUCLEATION, CONDENSATION, COMBUSTION PRODUCTS, CONCENTRATION(CHEMISTRY), GAS FLOW, SAMPLING, HELIUM, SCUBA DIVERS, DECOMPRESSION, RELIABILITY, GAS ANALYSIS, NAVAL RESEARCH, CIRCUITS, WIRING DIAGRAMS, DIVING, UNDERWATER VEHICLES.

Subject Categories : Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE