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Author
Alger, R. S. | Nichols, J. R.
Title
Survey of Fires in Hyporbaric and Hyperbaric Chambers.
Coporate
Naval Ordnance Lab., Silver Spring, MD
Report
NOLTR-71-128, July 20, 1971, 43 p.
Distribution
Available from National Technical Information Service
Contract
NOL-394/NEFC-101
Keywords
hypobaric chambers | hyperbaric chambers | controlled atmospheres | spacecraft | oxygen | combustion | ignition | fire hazards | fuels | cellulose | electrical equipment | fire spread | oxygen enriched atmospheres | accident investigations
Identifiers
oxygen enriched atmospheres
Abstract
The design of fire detection and suppression equipment requires some knowledge of the fire characteristics for the particular fuels and environments involved. In order to provide these characteristics for hyperbaric chambers, evidence from the most recent fires in British, Japanese, and U. S. chambers was examined and summarized. Items of particular interest are the conditions for ignition, e.g., the fuel, environment, and source of heat, the pattern and mechanism of fire spread; the degree of fuel involvement; the time required to develop a lethal environment; the results of fire suppression and rescue efforts. The evidence suggests a variety of design features and operational procedures which can reduce fire hazards in hypobaric and hyperbaric installations.