INFLUENCE OF TEMPERATURE AND HYDROXYL CONCENTRATION ON INCIPIENT SOOT FORMATION IN PREMIXED FLAMES

被引：41
作者：
HARRIS, MM
KING, GB
LAURENDEAU, NM
机构：
[1] Purdue Univ, Flame Diagnostics Lab,, West Lafayette, IN, USA, Purdue Univ, Flame Diagnostics Lab, West Lafayette, IN, USA
来源：
COMBUSTION AND FLAME | 1986年 / 64卷 / 01期
基金：
美国国家航空航天局;
关键词：
ETHANE; -; Combustion; ETHYLENE; FUELS; METHANE; PROPANE;
D O I：
10.1016/0010-2180(86)90101-X
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Critical equivalence ratios ( phi //c) have been measured as a function of temperature (1600-1880K) for premixed flames at atmospheric pressure. The five fuels studied are methane, ethane, propane, ethylene, and acetylene. The flames were stabilized on a flat flame burner and the temperatures were measured using sodium D-line reversal. A linear relationship is found between ln phi //c and 1/T for each fuel. Based on a global kinetic model in which soot precursors are formed by fuel pyrolysis and oxidized by OH, a predictive correlation has been developed which shows the influence of temperature, OH concentration, and C/H ratio on sooting tendency. This correlation describes all of the measured phi //c versus temperature data, suggesting that the overall mechanism of soot formation is similar among aliphatic fuels.
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页码：99 / 112
页数：14
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