Effects of flow rate and equivalence ratio on syngas flames in a multi-nozzle micromix model combustor

被引：17

作者：

Chen, Mengshi ^{[1
]}

Zhao, Yijun ^{[1
]}

Zhang, Linyao ^{[1
]}

Xing, Chang ^{[1
]}

Liu, Li ^{[1
]}

Qiu, Penghua ^{[1
]}

Sun, Shaozeng ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 49卷

基金：

中国国家自然科学基金;

关键词：

IGCC gas turbines; Micromix combustion; OH* chemiluminescence; Flame structure; HEAT-RELEASE RATE; HYDROGEN-RICH SYNGAS; METHANE/AIR; INSTABILITY; EMISSIONS; EXCITATION; STABILITY; MARKERS; SPEED; SWIRL;

D O I：

10.1016/j.ijhydene.2023.10.323

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, the flame structural parameters, OH* distribution characteristics, and dynamic behavior of the global heat release rate of a novel multi-nozzle micromix model combustor are experimentally investigated. The experiments were conducted at atmospheric pressure, high air temperature (691 K), equivalence ratio of 0.1-1.2, and air velocity of 30-80 m/s. The results demonstrate that the combustor has a wide operation window of stable combustion. The flame height is weakly related to air velocity and varies with equivalence ratio from 4D to 19D (D = 10 mm). The peak position of axial OH* intensity at the same flow rate keeps unchanged at various equivalence ratios, and the peak position of axial OH* increases in the range of 1.5D similar to 2.3D with increasing air velocity. The global heat release fluctuation of the flame becomes larger as the equivalence ratio decreases, which shows unsteady combustion behavior.

引用

页码：1268 / 1277

页数：10

共 53 条

[21]

Goodwin DG, 2018, CANTERA OBJECT ORIEN, DOI 10.5281/zenodo.1174508

[22] Excited OH kinetics and distribution in H2 premixed flames [J].

Grana-Otero, Jose ;

Mahmoudi, Siamak .

FUEL, 2019, 255

[23] An experimental study of syngas combustion in a bidirectional swirling flow [J].

Guryanov, Alexander I. ;

Evdokimov, Oleg A. ;

Burtsev, Vladimir A. ;

Koshkin, Valeriy I. ;

Veretennikov, Sergey V. ;

Komova, Olga V. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2023, 48 (11) :4503-4515

[24] Local measurements of the time-dependent heat release rate and equivalence ratio using chemiluminescent emission from a flame [J].

Hardalupas, Y ;

Orain, M .

COMBUSTION AND FLAME, 2004, 139 (03) :188-207

[25] Experimental investigation on the effects of hydrogen addition on thermal characteristics of methane/air premixed flames [J].

Hu, G. ;

Zhang, S. ;

Li, Q. F. ;

Pan, X. B. ;

Liao, S. Y. ;

Wang, H. Q. ;

Yang, C. ;

Wei, S. .

FUEL, 2014, 115 :232-240

[26] Effect of swirl on combustion dynamics in a lean-premixed swirl-stabilized combustor [J].

Huang, Y ;

Yang, V .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2005, 30 :1775-1782

[27] Experimental investigation of combustion dynamics and NOx/CO emissions from densely distributed lean-premixed multinozzle CH4/C3H8/H2/air flames [J].

Jin, Ukhwa ;

Kim, Kyu Tae .

COMBUSTION AND FLAME, 2021, 229

[28] Basic aspects of OH(A), CH(A), and C2(d) chemiluminescence in the reaction zone of laminar methane-air premixed flames [J].

Kojima, J ;

Ikeda, Y ;

Nakajima, T .

COMBUSTION AND FLAME, 2005, 140 (1-2) :34-45

[29] Investigation of turbulent premixed methane/air and hydrogen-enriched methane/air flames in a laboratory-scale gas turbine model combustor [J].

Liu, Xin ;

Bertsch, Michael ;

Subash, Arman Ahamed ;

Yu, Senbin ;

Szasz, Robert-Zoltan ;

Li, Zhongshan ;

Petersson, Per ;

Bai, Xue-Song ;

Alden, Marcus ;

Lorstad, Daniel .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (24) :13377-13388

[30] Numerical study of a high-hydrogen micromix model burner using flamelet-generated manifold [J].

Liu, Xunwei ;

Shao, Weiwei ;

Liu, Ce ;

Bi, Xiaotian ;

Liu, Yan ;

Xiao, Yunhan .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (39) :20750-20764

← 1 2 3 4 5 6 →