| GSP气化炉内多相湍流反应流动模拟研究 |
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| 引用本文： | 许建良,刘海峰,王俭,黄斌,马银剑,杨红波,雍晓静.GSP气化炉内多相湍流反应流动模拟研究[J].化学工程,2011,39(11):56-60,65. |
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| 作者姓名： | 许建良 刘海峰 王俭 黄斌 马银剑 杨红波 雍晓静 |
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| 作者单位： | 1. 华东理工大学煤气化教育部重点实验室,上海,200237
2. 神华宁夏煤业集团有限责任公司,宁夏银川,750411 |
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| 基金项目： | 国家科技支撑计划(2007BAA08B01); 国家自然科学基金资助项目(20906020) |
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| 摘 要： | 采用涡耗散概念(EDC)模型,对某化工厂的GSP气化炉内多相反应流场进行了数值模拟研究.计算中采用Realizable k-ε湍流模型对雷诺平均后的N-S方程进行封闭；采用离散相随机轨道模型来模拟气化炉内煤颗粒的弥散运动；采用P1模型对燃烧的辐射传热进行模拟.计算结果表明:气化炉内为强旋射流流场,颗粒在气化炉顶部回流区...
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| 关 键 词： | EDC模型 气流床气化炉 数值模拟 |
Numerical simulation of coal gasification in GSP coal gasifier |
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| XU Jian-liang,LIU Hai-feng,WANG Jian,HUANG Bin,MA Yin-jian,YANG Hong-bo,YONG Xiao-jing.Numerical simulation of coal gasification in GSP coal gasifier[J].Chemical Engineering,2011,39(11):56-60,65. |
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| Authors: | XU Jian-liang LIU Hai-feng WANG Jian HUANG Bin MA Yin-jian YANG Hong-bo YONG Xiao-jing |
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| Affiliation: | XU Jian-liang1,LIU Hai-feng1,WANG Jian2,HUANG Bin2,MA Yin-jian2,YANG Hong-bo2,YONG Xiao-jing2 (1.Key Laboratory of Coal Gasification of Ministry of Education,East China University of Science and Technology,Shanghai 200237,China,2.Shenhua Ningxia Coal Industry Group Co.,Ltd.,Yinchuan 750411,Ningxia Province,China) |
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| Abstract: | The eddy-dissipation-concept(EDC)model was used to simulate the multi-phase reaction flow field in the GSP gasifier of a chemical plant.The realizable k-ε turbulence model was applied to close the Reynolds-averaged Navier-Stokes equation for the gas phase flow,and the Random-Trajectory model was used to simulate the behavior of the coal particles in the gasifier.The P1 was adopted to model the radioactive heat transfer in the gasifier.The results show that it is swirl flow field in GSP gasifier,and the coal particles enrich on the wall and in the circulation region existed in the top and bottom of the gasifier.The gasification flame expends to the wall and the temperature decreases with the increase of the distance from the flame.Along the height of the gasifier,the volume fraction of CO and H2 decreases first and then increases,but the volume fraction of CO2 and H2 are opposite. |
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| Keywords: | EDC model entrained flow gasifier numerical simulation |
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