| Flow Field of Circulating Fluidized Bed Reactor with Venturi Inlet Configuration |
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| 引用本文： | 胡金榜 李艳平 陈安新. Flow Field of Circulating Fluidized Bed Reactor with Venturi Inlet Configuration[J]. 天津大学学报(英文版), 2005, 11(2): 106-109 |
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| 作者姓名： | 胡金榜 李艳平 陈安新 |
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| 作者单位： | SchoolofChemicalEngineeringandTechnology,TianjinUniversity,Tianjin300072,China |
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| 摘 要： | Different two-equation k-ε models were used to simulate the gas flow field generated by a new type of circulating fluidized bed reactor with venturi gas distributor. The numerical results were compared with the experimental data. It has been shown that the simulation results from the standard k-ε model have the best match with the experimental data. Based on this model, the gas flow field in the venturi diffuser and riser was analyzed by the concept of velocity nonuniformity and dead zone percentage. Both the nonuniformity of gas velocity and the dead zone percentage reach the maximum at the venturi outlet due to the effect of the vortex. At the same time, it provides a good platform for the further optimization of the inlet configuration of circulating fluidized bed reactor.
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| 关 键 词： | 流场 循环流化床反应器 文氏管 数值模拟技术 废气处理技术 直接脱硫技术 |
Flow Field of Circulating Fluidized Bed Reactor with Venturi Inlet Configuration |
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| Hu Jinbang,LI Yanping,CHEN Anxin. Flow Field of Circulating Fluidized Bed Reactor with Venturi Inlet Configuration[J]. Transactions of Tianjin University, 2005, 11(2): 106-109 |
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| Authors: | Hu Jinbang LI Yanping CHEN Anxin |
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| Affiliation: | School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | Different two-equation k-ε models were used to simulate the gas flow field generated by a new type of circulating fluidized bed reactor with venturi gas distributor. The numerical results were compared with the experimental data. It has been shown that the simulation results from the standard k-ε model have the best match with the experimental data. Based on this model, the gas flow field in the venturi diffuser and riser was analyzed by the concept of velocity nonuniformity and dead zone percentage. Both the nonuniformity of gas velocity and the dead zone percentage reach the maximum at the venturi outlet due to the effect of the vortex. At the same time, it provides a good platform for the further optimization of the inlet configuration of circulating fluidized bed reactor. |
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| Keywords: | circulating fluidized bed reactor venturi gas distributor numerical simulation velocity nonuniformity dead zone percentage |
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