Hydrodynamics of double-dipleg circulating fluidized beds for waste incineration
文献类型：会议论文
| 作者 | Yun, Xiaoyin1,2; Lin, Weigang2; Wu, Shaohua1 |
| 出版日期 | 1905-06-25 |
| 会议日期 | May 18, 2003 - May 21, 2003 |
| 会议地点 | Jacksonville, FL, United states |
| 关键词 | Fluidization - Fluidized bed combustors - Hydrodynamics - Land fill - Particle size analysis - Problem solving - Pyrolysis - Solid wastes - Waste incineration |
| DOI | 10.1115/FBC2003-120 |
| 页码 | 473-480 |
| 英文摘要 | In order to solve the problems of high temperature chlorine induced corrosion and the emission of dioxins, a new type of double-dipleg circulating fluidized bed incinerator is under development at the Institute of Process Engineering, Chinese Academy of Sciences. Understanding the hydrodynamics of such new type of CFB incinerator are of crucial importance for successful design and operation of the system. Experiments have been carried out in a lab-scale double-dipleg circulating fluidized bed to study the hydrodynamics of such system. The investigation is focused on the pressure profile in the loop and residence time distribution of particles with different sizes and densities in the secondary dipleg. The results show that the pressure profile in such system is similar to that in the conventional CFB. The residence time distribution (RTD) function of particles in the second dipleg varies with particle re-circulating rate, superficial gas velocity and the characteristics of the particles, such as density and size. The mean residence time of particles decreases sharply with an increase of the particle re-circulating rate and slightly decreases as the superficial gas velocity increases. It appears that the density of particle has a stronger influence on the residence time than the particle size. The lighter particles have a shorter residence time. The residence time distribution function of the particles is described by a tank-in-series model. The implication of the results to the design and operation of the double-dipleg circulating fluidized bed incinerator are discussed. |
| 资助机构 | American Society of Mechanical Engineers |
| 会议录 | 17th International Conference on Fluidized Bed Combustion
 |
| 学科主题 | Fluidized Beds |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59606]  |
| 作者单位 | 1.Sch. of Ener. Sci. and Engineering, Harbin Institute of Technology, Harbin 150001, China 2.Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China |
| 推荐引用方式 GB/T 7714 | Yun, Xiaoyin,Lin, Weigang,Wu, Shaohua. Hydrodynamics of double-dipleg circulating fluidized beds for waste incineration[C]. 见:. Jacksonville, FL, United states. May 18, 2003 - May 21, 2003. |
入库方式： OAI收割
来源：过程工程研究所
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