지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The coflow velocity effect on the minimum extinguishing concentration(MEC) was investigated experimentally in heptane cup-burner flames. Various inert gases($N_2$, Ar, $CO_2$, He) were added into the oxidizer to find the critical concentration and the effectiveness of the agents on flame extinction. The experimental results showed that the MECs were increased with increasing coflow velocity for most inert gases except helium, but the higher coflow velocity induced the lower burning rates of heptane. This indicated that the increase of coflow velocity resulted in the decrease of fuel velocity evaporated from fuel surface, and hence the stain rate on the reaction zone was also decreased. In the case of helium as a additive, the extinguishing concentration was independent of the coflow velocity because the heat conductivity was ten times larger than the other inert gases and flow effect by a strain rate might be compensated for heat loss to the surroundings.
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참고문헌 (17)
참고문헌 신청
T. R. Barfknecht / 1983 / Toxicology of Soot / Progress in Energy and Combustion Science 9:199~237
Anon / 2000 / Standard on Clean Agent Fire Extinguishing System / National Fire Protection Agency (NFPA 2001), Quincy, MA
E. C. Creitz / 1961 / Inhibition of Diffusion Flames by Methyl Bromide and Trifluoromethyl Bromide Applied to the Fuel and Oxygen Sides of the Reaction Zone / J. Res. NBS(US) 65A(4):389
R. Hirst / 1977 / Measurement of Flame- Extinguishing Concentrations / Fire Tech. 13(4):296
T. A. Moore / 1997 / Comparison of the NMERI and ICI-style Cup-burners / Proceedings of the 6th Halon Options Technical Working Conference (HOTWC-97), Albuquerque, NM :388~395
Anon / 2000 / Standard on Clean Agent Fire Extinguishing System / National Fire Protection Agency (NFPA 2001), Quincy, MA
E. C. Creitz / 1961 / Inhibition of Diffusion Flames by Methyl Bromide and Trifluoromethyl Bromide Applied to the Fuel and Oxygen Sides of the Reaction Zone / J. Res. NBS(US) 65A(4):389
R. Hirst / 1977 / Measurement of Flame- Extinguishing Concentrations / Fire Tech. 13(4):296
T. A. Moore / 1997 / Comparison of the NMERI and ICI-style Cup-burners / Proceedings of the 6th Halon Options Technical Working Conference (HOTWC-97), Albuquerque, NM :388~395
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