Skeletal mechanism modelling of n-heptane/oxygen laminar coflow flame structure at pressures

被引：4

作者：

Li, Sen ^{[1
]}

Wei, Xiaolin ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China

来源：

FUEL | 2015年 / 162卷

基金：

中国国家自然科学基金;

关键词：

Skeletal mechanism; n-Heptane; Flame structure; Soot; PRINCIPAL COMPONENT ANALYSIS; TEMPERATURE-FIELD STRUCTURE; AIR DIFFUSION FLAMES; SOOT FORMATION; ELEVATED PRESSURES; METHANE/AIR FLAMES; REDUCTION; PREDICTION; TOLUENE; SIZES;

D O I：

10.1016/j.fuel.2015.09.013

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A skeletal reaction mechanism of n-heptane combustion is developed and validated. The axisymmetric laminar co-flow diffusion flames of n-heptane/oxygen are simulated using the skeletal mechanism at elevated pressure, and the chemical reaction paths in three reaction zones of flame are presented. The n-heptane/oxygen flame height decreases from 8.8 to 5.6 mm with the increase of pressure from 0.1 to 2 MPa, and the Roper's formulation is not expected for the prediction of n-heptane/oxygen flame height. The maximum volume fraction of soot increases with pressure as f(v,max) proportional to P-2. The ratio of flame height to soot oxidation length of the n-heptane/oxygen flames is close to unity (1.037-1.121). (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：162 / 170

页数：9

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