Unified behavior of soot production and radiative heat transfer in ethylene, propane and butane axisymmetric laminar diffusion flames at different oxygen indices

被引：52

作者：

Escudero, F. ^{[1
,2
]}

Fuentes, A. ^{[1
]}

Consalvi, J. -L. ^{[2
]}

Liu, F. ^{[3
]}

Demarco, R. ^{[1
]}

机构：

[1] Univ Tecn Federico Santa Maria, Dept Ind, Ave Espana 1680, Valparaiso, Chile

[2] Aix Marseille Univ, UMR 7343, IUSTI, CNRS, 5 Rue E Fermi, F-13453 Marseille 13, France

[3] CNR, Measurement Sci & Stand, Bldg M-9,1200 Montreal Rd, Ottawa, ON K1A 0R6, Canada

来源：

FUEL | 2016年 / 183卷

关键词：

Laminar coflow diffusion flame; Soot volume fraction; Soot temperature; Oxygen index; Radiant fraction; Laminar smoke point height; SMOKE POINT MEASUREMENTS; TURBULENT JET FLAMES; TIKHONOV REGULARIZATION; ELEVATED PRESSURES; METHANE FLAMES; POSED PROBLEMS; ENRICHED AIR; L-CURVE; TEMPERATURE; MODEL;

D O I：

10.1016/j.fuel.2016.06.126

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：

An experimental study was conducted to investigate the effects of oxygen index on the flame geometry, soot production and radiative loss in laminar over-ventilated co-flow buoyant axisymmetric diffusion flames at atmospheric pressure. Three gaseous hydrocarbon fuels, namely ethylene, propane, and butane, were considered. The oxygen index was varied from 21% to 37% and several mass flow rates were used. These conditions were chosen to keep the flames under the smoke point. Soot volume fraction and temperature were deduced from line-of-sight attenuation and two-color emission measurements, respectively. A scaling analysis based on the smoke point height was developed in order to unify the sooting behavior of the flames investigated. This analysis produced correlations for the flame height, the maximum soot volume fraction, the maximum integrated soot volume fraction and the radiant fraction at the smoke point. Crown Copyright (C) 2016 Published by Elsevier Ltd. All rights reserved.

引用

页码：668 / 679

页数：12

共 51 条

[1] Parameter selection methods for axisymmetric flame tomography through Tikhonov regularization [J].

Akesson, Emil O. ;

Daun, Kyle J. .

APPLIED OPTICS, 2008, 47 (03) :407-416

[2]

Baukal C.E., 2013, OXYGEN ENHANCED COMB, V2nd

[3] Determination of soot formation rate from laminar smoke point measurements [J].

Beji, T. ;

Zhang, J. P. ;

Delichatsios, M. .

COMBUSTION SCIENCE AND TECHNOLOGY, 2008, 180 (05) :927-940

[4] Soot and NO formation in methane-oxygen enriched diffusion flames [J].

Beltrame, A ;

Porshnev, P ;

Merchan-Merchan, W ;

Saveliev, A ;

Fridman, A ;

Kennedy, LA ;

Petrova, O ;

Zhdanok, S ;

Amouri, F ;

Charon, O .

COMBUSTION AND FLAME, 2001, 124 (1-2) :295-310

[5] Computational and experimental study of oxygen-enhanced axisymmetric laminar methane flames [J].

Bennett, Beth Anne V. ;

Cheng, Zhongxian ;

Pitz, Robert W. ;

Smooke, Mitchell D. .

COMBUSTION THEORY AND MODELLING, 2008, 12 (03) :497-527

[6] Soot formation and temperature field structure in laminar propane-air diffusion flames at elevated pressures [J].

Bento, Decio S. ;

Thomson, Kevin A. ;

Gulder, Omer L. .

COMBUSTION AND FLAME, 2006, 145 (04) :765-778

[7] Absolute CH concentration measurements in low-pressure methane flames: Comparisons with model results [J].

Berg, PA ;

Hill, DA ;

Noble, AR ;

Smith, GP ;

Jeffries, JB ;

Crosley, DR .

COMBUSTION AND FLAME, 2000, 121 (1-2) :223-235

[8] Measurement of smoke point in velocity-matched coflow laminar diffusion flames with pure fuels at elevated pressures [J].

Berry, T. L. ;

Roberts, W. L. .

COMBUSTION AND FLAME, 2006, 145 (03) :571-578

[9] Radiative heat flux measurement uncertainty [J].

Bryant, R ;

Womeldorf, C ;

Johnsson, E ;

Ohlemiller, T .

FIRE AND MATERIALS, 2003, 27 (05) :209-222

[10] DETERMINATION OF THE WAVELENGTH DEPENDENCE OF REFRACTIVE-INDEXES OF FLAME SOOT [J].

CHANG, H ;

CHARALAMPOPOULOS, TT .

PROCEEDINGS OF THE ROYAL SOCIETY-MATHEMATICAL AND PHYSICAL SCIENCES, 1990, 430 (1880) :577-591

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