LARGE-SCALE USE OF INERT GAS TO EXTINGUISH BUILDING FIRES.
NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BUILDING RESEARCH
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The widespread use of inert gas as an extinguishing agent involves generation on a massive scale, and it is very probable that any practical generator could be based on a combustion device. Until recently the modified gas turbine appeared to be the most appropriate unit available, but the advent of a novel, small, combustion chamber operating at substantially atmospheric pressure, and producing an output gas of low oxygen content indicates that improved, less costly, large-scale inert gas generators can be developed. It is reasonable to expect that other high-output combustion devices may also become available. The principal limitation in the application of such generators will be high-level gaseous losses, and operational experience is required to determine how frequently the use of inert gas will achieve complete suppression of fire. The use of high-expansion foam to suppress fire at a low level and to reduce the effective height of a building will frequently ease the magnitude of this limitation. Author