The analysis of temperature and air entrainment rate for the turbulence diffusion jet flame of propane and carbon dioxide gas mixture

被引：23
作者：
Lu, Zhengkang [1 ]
Gao, Yuke [1 ]
Li, Guochun [2 ]
Liu, Bin [1 ]
Xu, Yao [1 ]
Tao, Changfa [1 ,3 ]
Meng, Shun [1 ,3 ]
Qian, Yejian [1 ]
机构：
[1] Hefei Univ Technol, Sch Automot & Transportat Engn, Hefei 230009, Anhui, Peoples R China
[2] State Grid Shandong Elect Power Co, Elect Power Res Inst, Jinan 250000, Shandong, Peoples R China
[3] 193 Tunxi Rd, Hefei 230026, Anhui, Peoples R China
来源：
ENERGY | 2022年 / 254卷
基金：
中国国家自然科学基金;
关键词：
Flame temperature; Air entrainment; Virtual origin; Gas mixture; Turbulent jet diffusion flame; LIFT-OFF; HEIGHT; FIRE; PRESSURE; FUEL; DILUTION; PROFILE;
D O I：
10.1016/j.energy.2022.124232
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A few of studies have investigated the temperature profile and air entrainment of the turbulent jet diffusion flame produced by the combustion of a gas mixture. In this study, the air entrainment rate and temperature distribution along the axis of a turbulent jet diffusion flame of propane mixed with different concentrations of carbon dioxide were therefore investigated, which using a series of experiments conducted with 2, 3, and 4 mm nozzles. The results show that the flame temperature increased in the continuous flame region and decreased in fire plume region as the carbon dioxide concentration increased under the same heat release rate. A virtual origin model was then developed to analyze the relationship between carbon dioxide concentration and flame temperature. The air entrainment rate of the fire plume region was influenced by the gas flow speed from the nozzles, and the total air entrainment rate was inversely proportional to the carbon dioxide concentration. A correlation among the flame temperature, carbon dioxide concentration, and air entrainment rate was then established, providing a valuable resource for the risk assessment of turbulent jet diffusion flames. (c) 2022 Elsevier Ltd. All rights reserved.
引用
收藏
页数：8
相关论文
共 37 条
[1]  
Amidpour M, 2022, Synergy development in renewables assisted multi-carrier systems
[2]   Experimental investigation of nitrogen addition effect on combustion characteristics of buoyant turbulent diffusion flame [J].
Bi, Yubo ;
Chen, Jian ;
Chen, Xiao ;
Lu, Shouxiang ;
Li, Changhai .
FUEL, 2019, 240 :237-243
[3]   Modeling of large-scale under-expanded hydrogen jet fires [J].
Consalvi, Jean-Louis ;
Nmira, Fatiha .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2019, 37 (03) :3943-3950
[4]   Effects of simultaneous hydrogen enrichment and carbon dioxide dilution of fuel on soot formation in an axisymmetric coflow laminar ethylene/air diffusion flame [J].
Gu, Mingyan ;
Chu, Huaqiang ;
Liu, Fengshan .
COMBUSTION AND FLAME, 2016, 166 :216-228
[5]   Virtual origin correction for a fire plume in a room under displacement ventilation regime [J].
Harrak, S. Haouari ;
Mehaddi, R. ;
Boulet, P. ;
Koutaiba, E. M. ;
Giovannelli, G. ;
Becker, S. .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2019, 136 :243-253
[6]   Flame height and lift-off of turbulent buoyant jet diffusion flames in a reduced pressure atmosphere [J].
Hu, Longhua ;
Wang, Qiang ;
Delichatsios, Michael ;
Tang, Fei ;
Zhang, Xiaochun ;
Lu, Shouxiang .
FUEL, 2013, 109 :234-240
[7]   Axial temperature profile in vertical buoyant turbulent jet fire in a reduced pressure atmosphere [J].
Hu, LongHua ;
Wang, Qiang ;
Tang, Fei ;
Delichatsios, Michael ;
Zhang, XiaoChun .
FUEL, 2013, 106 :779-786
[8]   Physical models of flame height and air entrainment of two adjacent buoyant turbulent jet non-premixed flames with different heat release rates ? [J].
Ji, Jie ;
Wang, Chen ;
Yu, Longxing .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2021, 38 (03) :4907-4916
[9]   Gas temperature rise and flame length induced by two buoyancy -controlled propane burners aligned parallel to the cross wind [J].
Ji, Jie ;
Li, Bo ;
Wan, Huaxian ;
Ding, Long ;
Gao, Zihe .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2020, 152
[10]  
Karlsson B., 2000, Enclosure fire dynamics
1234