An EMMS based mixture model for turbulent fluidization
文献类型：会议论文
| 作者 | Ullah, Atta2,3; Wang, Wei1,3; Li, Jinghai1 |
| 出版日期 | 1905-07-06 |
| 会议日期 | May 14, 2014 - May 17, 2014 |
| 会议地点 | Beijing, China |
| 关键词 | Chemical reactors - Energy utilization - Mixtures - Fluidization - Fluid catalytic cracking - Suspensions (fluids) |
| 页码 | 267-272 |
| 英文摘要 | Turbulent fluidization has only been widely recognized as a distinct flow regime for the past two decades, even though it is commonly utilized in industrial fluidized-bed reactors. Relatively fewer efforts have been made to model these systems as compared to bubbling and circulting fluidized beds. In current work, we have reformulated the original EMMS model in terms of a mixture. This mixture comprises of gas and particles at micro-scale and voids and suspension phase at meso-scale. Subsequently, all properties are calculated in terms of mixture rather than individual phases. With the minimization of the objective function, the system is then solved numerically. The objective function, used to close the system of equations, is made of the energy consumption rates needed to suspend gas-particle suspension and the energy consumed due to interaction between suspension and voids. The model is then applied to simulate gas-solid turbulent fluidized bed. Results of simulations are found in good agreement with experimental data by prediction of a dense bottom and dilute top zone. A comparison of results with homogeneous drag model is also presented. |
| 资助机构 | Materials China |
| 会议录 | 11th International Conference on Fluidized Bed Technology, CFB 2014
 |
| 学科主题 | Fluidized Beds |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59388]  |
| 作者单位 | 1.Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 2.Department of Chemical Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan 3.University of Chinese Academy of Sciences, Beijing 100490, China |
| 推荐引用方式 GB/T 7714 | Ullah, Atta,Wang, Wei,Li, Jinghai. An EMMS based mixture model for turbulent fluidization[C]. 见:. Beijing, China. May 14, 2014 - May 17, 2014. |
入库方式： OAI收割
来源：过程工程研究所
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