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.

引用

页码：99 / 112

页数：14

共 20 条

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