Experimental Study in H2/CO/CH4-Air and H2/CO/C3H8-Air Premixed Flames. Part 2: Cellular Instabilities

被引：0
作者：
Tran Manh Vu [1 ]
Park, Jeong [2 ]
Kim, Jeong Soo [2 ]
Kwon, Oh Boong [2 ]
Yun, Jin Han [3 ]
Keel, Sang In [3 ]
机构：
[1] Ho Chi Minh City Univ Technol, Fac Civil Engn, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City, Vietnam
[2] Pukyong Natl Univ, Sch Mech Engn, Busan 608739, South Korea
[3] Korea Inst Machinery & Mat, Energy & Environm Res Div, Daejeon 305343, South Korea
来源：
EXPLOSION, SHOCK WAVE AND HIGH-ENERGY REACTION PHENOMENA | 2011年 / 673卷
关键词：
Carbon monoxide; Cellular instabilities; Hydrocarbon; Hydrogen; Premixed flame; SPHERICAL FLAMES; DILUENTS; BEHAVIOR; LAMINAR;
D O I：
10.4028/www.scientific.net/MSF.673.71
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Experiments in a constant pressure combustion chamber at room temperature and elevated pressures using schlieren system were conducted to investigate the cellular instabilities in hydrogen/carbon monoxide/methane (or propane) air premixed flames. In the present study, hydrodynamic and diffusional-thermal instabilities were evaluated to elucidate their effects to flame instabilities. Effective Lewis numbers of premixed flames with methane addition decrease for all of the cases. Meanwhile, the effective Lewis numbers with propane addition increase for lean and stoichiometric conditions, but they increase for rich and stoichiometric cases for hydrogen-enriched flames. With propane addition, the propensity for cells formation is significantly diminished whereas the cellular instabilities for hydrogen enriched flames are promoted. With methane addition, the similar behavior of cellularity is obtained, indicating that methane is not a candidate for suppressing cells formation in hydrogen/carbon monoxide/methane air premixed flames.
引用
收藏
页码：71 / +
页数：2
相关论文
共 13 条
[1]   Wrinkling of spherically expanding flames [J].
Addabbo, R ;
Bechtold, JK ;
Matalon, M .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2002, 29 :1527-1535
[2]   DYNAMIC BEHAVIOR OF PREMIXED FLAME FRONTS IN LAMINAR AND TURBULENT FLOWS [J].
CLAVIN, P .
PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 1985, 11 (01) :1-59
[3]   Measurements of laminar burning velocities and onset of cellular instabilities of methane-hydrogen-air flames at elevated pressures and temperatures [J].
Hu, Erjiang ;
Huang, Zuohua ;
He, Jiajia ;
Zheng, Jianjun ;
Miao, Haiyan .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (13) :5574-5584
[4]   The unstable behavior of cellular premixed flames induced by intrinsic instability [J].
Kadowaki, S ;
Suzuki, H ;
Kobayashi, H .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2005, 30 :169-176
[5]  
Kee RJ, 1992, SAND868246 SAND NAT
[6]   Cellular instabilities and self-acceleration of outwardly propagating spherical flames [J].
Kwon, OC ;
Rozenchan, G ;
Law, CK .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2002, 29 :1775-1783
[7]  
Law C.K., 2005, GUT, V30, P159
[8]   Effects of hydrocarbon substitution on atmospheric hydrogen-air flame propagation [J].
Law, CK ;
Kwon, OC .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2004, 29 (08) :867-879
[9]   Effects of Lewis number and preferential diffusion on flame characteristics in 80%H2/20%CO syngas counterflow diffusion flames diluted with He and Ar [J].
Park, Jeong ;
Lee, Do Hyung ;
Yoon, Sung Hwan ;
Vu, Tran Manh ;
Yun, Jin Han ;
Keel, Sang In .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (03) :1578-1584
[10]   Suppression effects of diluents on laminar premixed hydrogen/oxygen/nitrogen flames [J].
Qiao, L ;
Kim, CH ;
Faeth, GM .
COMBUSTION AND FLAME, 2005, 143 (1-2) :79-96
12