Study on combustion characteristics of premixed methane/oxygen in meso-combustors with different cross-sections

被引：13

作者：

Pan, Jianfeng ^{[1
]}

Yu, Hong ^{[1
]}

Ren, Huimin ^{[1
]}

Zhang, Yi ^{[1
]}

Lu, Qingbo ^{[1
]}

Quaye, Evans K. ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2020年 / 154卷

基金：

中国国家自然科学基金;

关键词：

Meso-scale combustion; Hydraulic diameter; Inlet shape; Upper flammability limit; Combustion characteristics; CYLINDERICAL MESOSCALE REACTORS; MICRO-CYLINDRICAL COMBUSTOR; THERMAL PERFORMANCE; FLAME DYNAMICS; MIXTURE; NUMBER; LIMITS;

D O I：

10.1016/j.cep.2020.108025

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：

The combustion characteristics of premixed methane/oxygen in three kinds of meso-combustors with the same hydraulic diameter were compared. The upper flammability limits of the premixed gas in the combustors with different cross-sections were measured experimentally. And the temperature field, flow field and OH concentration distribution in the meso-combustors were analyzed by numerical simulation. In addition, the effects of equivalence ratio and inlet velocity on OH mass fraction and wall temperature of combustors were also investigated. The results showed that the upper flammability limits of premixed gases decreased in turn when the methane flow rate was same for the combustion process of circular, square and rectangular cross-sections combustors. Under the same inlet parameters, the intensity of gas-phase reaction in the circular cross-section combustor was greater than that in the combustor with square cross-section, and that in the combustor with rectangular cross-section was the least. When the equivalence ratio or inlet velocity was constant, the mean temperature of the "square" cross-section combustor was higher, but the temperature difference in the combustor with circular cross-section was smaller and the temperature was more uniform.

引用

页数：12

共 43 条

[1] A three-dimensional computational model of H2-air premixed combustion in non-circular micro-channels for a thermo-photovoltaic (TPV) application [J].

Akhtar, Saad ;

Kurnia, Jundika C. ;

Shamim, Tariq .

APPLIED ENERGY, 2015, 152 :47-57

[2] Experimental study of methane-oxygen premixed flame characteristics in non-adiabatic micro-reactors [J].

Baigmohammadi, Mohammadreza ;

Tabejamaat, Sadegh ;

Yeganeh, Maryam .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2019, 142

[3] Experimental study on the effects of mixture flow rate, equivalence ratio, oxygen enhancement, and geometrical parameters on propane air premixed flame dynamics in non-adiabatic meso-scale reactors [J].

Baigmohammadi, Mohammadreza ;

Tabejamaat, Sadegh ;

Faghani-Lamraski, Morteza .

ENERGY, 2017, 121 :657-675

[4] 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

[5] 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

[6] Thermal performance of a micro-combustor for micro-gas turbine system [J].

Cao, H. L. ;

Xu, J. L. .

ENERGY CONVERSION AND MANAGEMENT, 2007, 48 (05) :1569-1578

[7] The development of a micropower (micro-thermophotovoltaic) device [J].

Chia, Loy Chuan ;

Feng, Bo .

JOURNAL OF POWER SOURCES, 2007, 165 (01) :455-480

[8] The effect of the blockage ratio on the blow-off limit of a hydrogen/air flame in a planar micro-combustor with a bluff body [J].

Fan, Aiwu ;

Wan, Jianlong ;

Liu, Yi ;

Pi, Boming ;

Yao, Hong ;

Maruta, Kaoru ;

Liu, Wei .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (26) :11438-11445

[9] The influence of injection strategy on mixture formation and combustion process in a direct injection natural gas rotary engine [J].

Fan, Baowei ;

Pan, Jianfeng ;

Yang, Wenming ;

Chen, Wei ;

Bani, Stephen .

APPLIED ENERGY, 2017, 187 :663-674

[10] Numerical simulation of the combustion of hydrogen-air mixture in micro-scaled chambers. Part I: Fundamental study [J].

Hua, JS ;

Wu, M ;

Kumar, K .

CHEMICAL ENGINEERING SCIENCE, 2005, 60 (13) :3497-3506

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