Characteristics of flow from an oxy-fuel burner with separated jets: influence of jet injection angle

被引：13

作者：

Boushaki, Toufik ^{[1
,2
]}

Sautet, Jean-Charles ^{[1
,2
]}

机构：

[1] Univ St Etienne, CNRS, CORIA, UMR 6614, F-76801 St Etienne, France

[2] INSA, ROUEN, F-76801 St Etienne, France

来源：

EXPERIMENTS IN FLUIDS | 2010年 / 48卷 / 06期

关键词：

2-DIMENSIONAL PARALLEL JETS; DIFFUSION FLAMES; MULTIPLE JETS; TRIPLE JETS; TURBULENT; CONFIGURATION; INTERFERENCE;

D O I：

10.1007/s00348-009-0788-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents an experimental study of flow development and structure on a separated jet burner in reacting and non-reacting flows. Effects of deflection jets in an aligned configuration of three round jets are emphasized. The idea is based on the confinement of a central jet of fuel by two side jets of oxygen to improve mixing, to control flame stability, and to reduce pollutant emissions. The fields of mean velocity and fluctuation intensity were measured using Particle Image Velocimetry. The deflection of jets has a considerable effect on the dynamic behavior and on the flame characteristics. Results showed that the deflection of jets favors mixing and accelerates merging and combining of jets to a single one. Measurements in reacting flow showed a high influence of combustion on dynamic fields. Compared to non-reactive case, in combustion, larger radial expansion and higher velocity were observed, particularly, above the stabilization point of the flame.

引用

页码：1095 / 1108

页数：14

共 27 条

[1]

AHMED AKM, 2001, J HYDRAUL RES, V39, P163

[2]

Baukal C.E., 2003, IND BURNERS HDB, DOI DOI 10.1201/9780203488805

[3] Oxygen-enhanced/natural gas flame radiation [J].

Baukal, CE ;

Gebhart, B .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1997, 40 (11) :2539-2547

[4] Effects of inclined jets on turbulent oxy-flame characteristics in a triple jet burner [J].

Boushaki, T. ;

Mergheni, M. A. ;

Sautet, J. C. ;

Labegorre, B. .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2008, 32 (07) :1363-1370

[5] The behaviour of lifted oxy-fuel flames in burners with separated jets [J].

Boushaki, T. ;

Sautet, J. C. ;

Salentey, L. ;

Labegorre, B. .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2007, 34 (01) :8-18

[6]

*GEFGN, 1979, REV GEN THERM, P643

[7] Flow control with noncircular jets [J].

Gutmark, EJ ;

Grinstein, FF .

ANNUAL REVIEW OF FLUID MECHANICS, 1999, 31 :239-+

[8]

IVERNEL A, 1975, 2 EUR COMB S, P121

[9] DEVELOPMENT AND STRUCTURE OF A RECTANGULAR JET IN A MULTIPLE JET CONFIGURATION [J].

KROTHAPALLI, A ;

BAGANOFF, D ;

KARAMCHETI, K .

AIAA JOURNAL, 1980, 18 (08) :945-950

[10] An investigation of multiple jet acetylene flames [J].

Leite, AOP ;

Ferreira, MA ;

Carvalho, JA .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1996, 23 (07) :959-970

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