FLAME STABILITY OF PROPANE-AIR PREMIXED COMBUSTION IN HEAT-RECIRCULATION MICRO-COMBUSTORS

被引：1

作者：

Chen, Junjie ^{[1
]}

Song, Wenya ^{[1
]}

Gao, Xuhui ^{[1
]}

Yan, Longfei ^{[1
]}

Xu, Deguang ^{[1
]}

机构：

[1] Henan Polytech Univ, Sch Mech & Power Engn, Jiaozuo 454000, Henan, Peoples R China

来源：

FRONTIERS IN HEAT AND MASS TRANSFER | 2016年 / 7卷 / 01期

关键词：

Micro-combustion; Flame stability; Heat recirculation; Extinction; Blowout; Micro-combustor; Excess enthalpy;

D O I：

10.5098/hmt.7.3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The flame stability of single-pass heat-recirculation micro-combustors was investigated using computational fluid dynamics and compared to single-channel micro-combustors with respect to critical heat loss coefficient and total power loss. The effect of wall thermal conductivity was also explored. The simulations show that heat recirculation profoundly affects blowout because of preheating of the cold incoming gases but has only minimal effect on extinction. In the limit of low-conductivity walls, the heat-recirculation micro-combustor is much more stable than the single-channel micro-combustor. Under certain conditions, the heat recirculation micro-combustor can operate with room-temperature inlet and outlet streams and moderate outer wall temperatures while exhibiting high thermal and combustion efficiency.

引用

页数：9

共 45 条

[1] Gas-phase and catalytic combustion in heat-recirculating burners [J].

Ahn, JM ;

Eastwood, C ;

Sitzki, L ;

Ronney, PD .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2005, 30 :2463-2472

[2] An experimental study of methane-oxygen-carbon dioxide premixed flame dynamics in non-adiabatic cylinderical meso-scale reactors with the backward facing step [J].

Baigmohammadi, Mohammadreza ;

Tabejamaat, Sadegh ;

Farsiani, Yasaman .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2015, 95 :105-123

[3] Experimental study of the effects of geometrical parameters, Reynolds number, and equivalence ratio on methane-oxygen premixed flame dynamics in non-adiabatic cylinderical meso-scale reactors with the backward facing step [J].

Baigmohammadi, Mohammadreza ;

Tabejamaat, Sadegh ;

Farsiani, Yasaman .

CHEMICAL ENGINEERING SCIENCE, 2015, 132 :231-249

[4] EFFECT OF GEOMETRIC SCALE ON HEAT RECIRCULATION AND SYNGAS PRODUCTION IN A NONCATALYTIC COUNTER-FLOW REFORMER [J].

Belmont, E. L. ;

Radyjowski, P. ;

Ellzey, J. L. .

COMBUSTION SCIENCE AND TECHNOLOGY, 2015, 187 (06) :874-893

[5] Lean heptane and propane combustion in a non-catalytic parallel-plate counter-flow reactor [J].

Belmont, Erica L. ;

Ellzey, Janet L. .

COMBUSTION AND FLAME, 2014, 161 (04) :1055-1062

[6] Experimental and analytical investigation of lean premixed methane/air combustion in a mesoscale counter-flow reactor [J].

Belmont, Erica L. ;

Schoegl, Ingmar ;

Ellzey, Janet L. .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2013, 34 :3361-3367

[7] Catalyzed combustion of hydrogen-oxygen in platinum tubes for micro-propulsion applications [J].

Boyarko, GA ;

Sung, CJ ;

Schneider, SJ .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2005, 30 :2481-2488

[8] Combustion features of a bio-fuelled micro-gas turbine [J].

Cameretti, Maria Cristina ;

Tuccillo, Raffaele .

APPLIED THERMAL ENGINEERING, 2015, 89 :280-290

[9] Scale and geometry effects on heat-recirculating combustors [J].

Chen, Chien-Hua ;

Ronney, Paul D. .

COMBUSTION THEORY AND MODELLING, 2013, 17 (05) :888-905

[10] Three-dimensional effects in counterflow heat-recirculating combustors [J].

Chen, Chien-Hua ;

Ronney, Paul D. .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2011, 33 :3285-3291

← 1 2 3 4 5 →