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Flame Extinguishing Concentrations and Flue Gas Compositions of n-Heptane by Mixed Inert Gas Agents  

김재덕 (한국과학기술연구원, CFC대체연구센터)
김영래 (한국과학기술연구원, CFC대체연구센터)
홍승태 (한국과학기술연구원, CFC대체연구센터)
이성철 (한양대학교 화학공학과)
Publication Information
Fire Science and Engineering / v.16, no.3, 2002 , pp. 77-83 More about this Journal
Abstract
We measured flame extinguishing concentration and flue gas composition in the n-heptane fuel cup-burner system using inert gas agents such as nitrogen, argon, carbon dioxide and their mixtures. The flame extinguishing concentration of binary gaseous mixture was well predicted by model which contains the flame extinguishing concentration and composition of pure components. The higher average specific gravity of the mixed inert gas agents, the more excellent flame extinguishing performance. And the structure of enclosed space also affects the fire extinguishing. The composition of carbon dioxide in the flue gas was decreased with increasing extinguishing agent used. Nitrogen monoxide production is not related with increasing nitrogen, but increased at rapid mass flow rate of air in the cup-burner.
Keywords
Flame extinguishing concentration; Inert gas agent; Cup burner; Flue gas;
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