Nitrogen and carbon dioxide dilution effect on upper flammability limits for organic compound containing carbon, hydrogen and oxygen atoms

文化大學機構典藏 CCUR > 理工學院 > 工學院 > 化學工程與材料工程學系暨碩士班 > 期刊論文 > Item 987654321/20953

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题名:	Nitrogen and carbon dioxide dilution effect on upper flammability limits for organic compound containing carbon, hydrogen and oxygen atoms
作者:	Wang, TC (Wang, TzuChi) Chen, CC (Chen, ChanCheng) Chen, HC (Chen, HuiChu)
贡献者:	化材系
关键词:	Upper flammability limit Inert nitrogen Inert carbon dioxide Safety
日期:	2010-07
上传时间:	2011-12-09 15:07:04 (UTC+8)
摘要:	In this work semi-empirical models for predicating upper flammability limit (UFL) for flammable gases diluted with inert nitrogen and with carbon dioxide are developed, respectively. Experimental data for 20 flammable gases are collected and used to determine the unspecified parameter in our earlier theoretical model. It is found that if we divide these 20 organic compounds into three groups-C(n)H(m), C(n)H(m)O, and C(n)H(m)O(2), the coefficients of determination (R(2)) for these three categories for the case of melt nitrogen will be 0.9969, 0.9940 and 0.9971, respectively; and for the case of inert dioxide will be 0.9922, 0.9811 and 0.9877, respectively. If all the compounds are unified in a same model, it is found the R(2) values are 0.9954 and 0.9897 for inert nitrogen and inert carbon dioxide, respectively. Experimental data of cyclopropane, ammonia, benzene, acetylene, carbon disulfide, carbon monoxide, diethyl ether, and hydrogen, which are not included in the original semi-empirical model, is used to validate the predictive ability for the proposed unified model, and it is found that the average predictive errors for each component are lower than 10% for inert gases of both nitrogen and carbon dioxide. (C) 2010 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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