Investigation of the effect of molecular structure on sooting tendency in laminar diffusion flames at elevated pressure

被引：32

作者：

Zhou, Lei ^{[1
]}

Dam, N. J. ^{[1
]}

Boot, M. D. ^{[1
]}

de Goey, L. P. H. ^{[1
]}

机构：

[1] Eindhoven Univ Technol TU E, Dept Mech Engn, NL-5600 MB Eindhoven, Netherlands

来源：

COMBUSTION AND FLAME | 2014年 / 161卷 / 10期

关键词：

Laminar diffusion flame; Soot formation; Liquid fuel; Molecular structure; Elevated pressure; Laser diagnostics; TEMPERATURE-FIELD STRUCTURE; FUEL MIXTURES; N-HEPTANE; MODEL; PREDICTION; BEHAVIOR; METHANE; ETHANE; SIZES; INDEX;

D O I：

10.1016/j.combustflame.2014.04.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A specially designed High Pressure Vessel and Burner and fueling system (called "doped flame") are presented in this paper. This setup allows for soot measurements in laminar diffusion flames of liquid fuel blends at elevated pressure. Fuels with two typical molecular structures, namely linear and saturated cyclic hydrocarbons, are examined in both non-oxygenated (n-hexane (C6H14) and cyclohexane (C6H12)) and oxygenated form (1-hexanol (C6H14O) and cyclohexanol (C6H12O)). All compounds are blended into n-heptane. Focus of the research is on soot volume fraction at elevated pressure in the range of 1.5-2.0 bar. Sooting tendency is evaluated by means of Laser Induced Incandescence (LII) with Line of Sight Attenuation calibration (LOSA), and the data suggests that soot is more prevalent for cyclic structures relative to their linear counterparts. (C) 2014 The Combustion Institute. Published by Elsevier Inc. All rights reserved.

引用

页码：2669 / 2677

页数：9

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