[1]刘升,郝英立.Texaco气流床煤气化炉内气固两相流动的数值模拟[J].东南大学学报(自然科学版),2009,39(4):803-807.[doi:10.3969/j.issn.1001-0505.2009.04.030] 　Liu Sheng,Hao Yingli.Numerical simulation of gas-solid two-phase flow in a Texaco entrained-flow coal gasifier[J].Journal of Southeast University (Natural Science Edition),2009,39(4):803-807.[doi:10.3969/j.issn.1001-0505.2009.04.030] 点击复制 Texaco气流床煤气化炉内气固两相流动的数值模拟() 分享到： var jiathis_config = { data_track_clickback: true };

39

2009年第4期

803-807

2009-07-20

文章信息/Info

Title:
Numerical simulation of gas-solid two-phase flow in a Texaco entrained-flow coal gasifier

1 东南大学能源与环境学院,南京 210096; 2 东南大学空间科学与技术研究院,南京 210096
Author(s):
1 School of Energy and Environment,Southeast University,Nanjing 210096,China
2 Institute of Space Science and Technology,Southeast University,Nanjing 210096,China

Keywords:

O359
DOI:
10.3969/j.issn.1001-0505.2009.04.030

Abstract:
Numerical simulation of gas-solid two-phase flow in a Texaco coal gasifier operated in a domestic factory in China was carried out using the Eulerian-Lagrangian approach.The realizable k-ε model was used to describe the turbulence gas flow in an Eulerian frame while the coal particle trajectories were calculated by a stochastic tracking model in a Lagrangian frame.The velocity vector of gas,particle trajectories,particle deposition on inner wall,and particle residence time in the gasifier were acquired through numerical calculation.The results indicate that back flow exists in the gas flow field,which increases the particle resistance time in the gasifier.The largest deposition rate appears at the bottom of cylinder part and the top of pyramid part of the gasifier.Most of the particle has a resistance time of less than 5 s in the gasifier,and the resistance time decreases with the reduction of gas flow rate.

参考文献/References:

[1] Choi Y C,Li X Y,Park T J,et al.Numerical analysis of the flow field inside an entrained-flow gasifier [J]. Korean Journal of Chemical Engineering,2001,18(3):376-381.
[2] Chen C,Horio M,Kojima T.Use of numerical modeling in the design and scale-up of entrained flow coal gasifiers [J].Fuel,2001,80(10):1513-1523.
[3] 龚欣,于建国,王辅臣,等.冷态德士古气化炉流场与停留时间分布的研究[J].燃料化学学报,1994,22(2):189-195.
Gong Xin,Yu Jianguo,Wang Fuchen,et al.Study of cold flow field and residence time distribution of Texaco gasifier [J]. Journal of Fuel Chemistry and Technology,1994,22(2):189-195.(in Chinese)
[4] 郝英立,许忠林,刘升.多喷嘴对峙煤气化炉内气固两相流动及壁面沉积率[J].东南大学学报:自然科学版,2008,38(3):461-467.
Hao Yingli,Xu Zhonglin,Liu Sheng.Gas-solid two-phase flows and particle deposition on internal wall in coal gasifier with multi opposed injector [J].Journal of Southeast University:Natural Science Edition,2008,38(3):461-467.(in Chinese)
[5] 梁万才,赵建涛,吴晋沪,等.两段式气流床煤气化炉内气固流动数值模拟研究[J].燃料化学学报,2007,35(3):359-365.
Liang Wancai,Zhao Jiantao,Wu Jinhu,et al.Numerical simulation of the gas-solid flow in the two-stage entrained flow coal gasifier [J].Journal of Fuel Chemistry and Technology,2007,35(3):359-365.(in Chinese)
[6] 许建良,代正华,李巧红.气流床气化炉内颗粒停留时间分布[J].化工学报,2008,59(1):53-57.
Xu Jianliang,Dai Zhenghua,Li Qiaohong.Particle residence time distributions in entrained-flow gasifier [J].Journal of Chemical Industry and Engineering,2008,59(1):53-57.(in Chinese)
[7] 吴玉新,张建胜,岳光溪,等.用于Texaco气化炉同轴射流计算的不同湍流模型的比较[J].化工学报,2007,58(3):537-543.
Wu Yuxin,Zhang Jiansheng,Yue Guangxi,et al.Comparison of different turbulence models in computation of co-axial jet stream of Texaco gasifier [J]. Journal of Chemical Industry and Engineering,2007,58(3):537-543.(in Chinese)
[8] Shih T-H,Liou W W,Shabbir A,et al.A new k-ε eddy viscosity model for high Reynolds number turbulent flows [J]. Computers & Fluids,1995,24(3):227-238.
[9] Morsi S A,Alexander A J.An investigation of particle trajectories in two-phase flow systems [J]. Journal of Fluid Mechanics,1972,55(2):193-208.
[10] Choi Y C,Li X Y,Park T J,et al.Numerical study on the coal gasification characteristics in an entrained flow coal gasifier [J].Fuel,2001,80(15):2193-2201.

相似文献/References:

[1]杜敏,等.两段式气流床煤气化炉内熔渣壁面沉积数值模拟[J].东南大学学报(自然科学版),2014,44(2):307.[doi:10.3969/j.issn.1001-0505.2014.02.015]
Du Min,Zhao Changsui,et al.Numerical simulation of slag deposition on internal wall in a two-stage entrained-flow coal gasifier[J].Journal of Southeast University (Natural Science Edition),2014,44(4):307.[doi:10.3969/j.issn.1001-0505.2014.02.015]