| 超临界水流化床反应器加料方式优化的数值模拟 |
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| 引用本文： | 魏利平,吕友军,魏进家.超临界水流化床反应器加料方式优化的数值模拟[J].工程热物理学报,2012(7):1173-1176. |
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| 作者姓名： | 魏利平 吕友军 魏进家 |
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| 作者单位： | 西安交通大学动力工程多相流国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(No.50906069;No.50823002);国家973计划资助项目(No.2009CB220000) |
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| 摘 要： | 超临界水流化床反应器是应用于生物质气化制氢工程中的一种新型反应器,它避免了以往管式反应器容易出现结渣、堵管的不足,而且还具有床内升温迅速、生物质气化充分以及产氢率高等优点。由于采用超临界水作为流化工质,传统流化床的设计方法已经不能满足设计要求。本文基于欧拉双流体模型对超临界水流化床加料方式进行了数值模拟研究,建立了最优加料口结构评价方法,分析了加料口结构、加料速度比以及初始床层高度对超临界水流化床颗粒分布的影响。本文研究进一步完善了超临界水流化床的设计理论。
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| 关 键 词： | 超临界水 流化床 加料管 优化设计 |
Numerical Study of Optimizing Feeding Methods of Supercritical Water Fluidized Bed Reactor |
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| WEI Li-Ping LU You-Jun WEI Jin-Jia.Numerical Study of Optimizing Feeding Methods of Supercritical Water Fluidized Bed Reactor[J].Journal of Engineering Thermophysics,2012(7):1173-1176. |
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| Authors: | WEI Li-Ping LU You-Jun WEI Jin-Jia |
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| Institution: | WEI Li-Ping LU You-Jun WEI Jin-Jia (State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | SCWFBR(Supercritical Water Fluidized Bed Reactor)is a new concept for hydrogen production by biomass gasification,which can effectively prevent the reactor plugging and improve the biomass gasification efficiency.Feeding pipe,which is a necessary component for biomass continuous gasification,has great effect upon solid particles distribution and gasification process in SCWFBR.A reasonable evaluation criterion was determined for optimization design of feeding pipe mouth structures in the paper.Influences of feeding mode and operating methods on solid particles distribution were studied by numerical simulation.The purpose was to provide reference for the development of SCWFBR design theory. |
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| Keywords: | supercritical water fluidized bed feeding pipe optimization design |
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