垃圾衍生燃料流化床掺混流动过程数值研究  

Numerical analysis on the RDF mixing process with bed material in fluidized bed

作　　者：王力军[1] 谢欣[1] 李延吉[1] 

机构地区：[1]沈阳航空航天大学能源与环境学院,辽宁沈阳110136

出　　处：《再生资源与循环经济》2015年第6期28-31,共4页Recyclable Resources and Circular Economy

基　　金：国家重点基础研究发展计划项目(973)(2011CB201506)

摘　　要：基于计算流体力学方法,采用欧拉双流体模型对垃圾衍生燃料(RDF)流化床内的颗粒掺混流动过程进行三维数值研究。由于燃料颗粒与床料颗粒的密度与直径均有一定差异,因此分别考虑各组分颗粒性质,各组分间相互作用以及气固两相间作用来建立计算模型。研究发现,通过改变表观气体速度,入口流态化速度对颗粒掺混有显著影响。Numerical study on the mixing process of Refuse Derived Fuel （RDF） and bed material in the fluidized bed was carried out based on computational fluid dynamics （CFD） by EuleriaI-Eulerian two-fluid model. The particles＂ characteristics and the interactions between two components and two phases were considered for a certain distinctions exist between the fuel and bed material particles to build the calculating model. The effect of the superficial gas velocity on the mixing extent was researched.

关 键 词：流化床 垃圾衍生燃料 计算流体力学 掺混 双组分颗粒 

分 类 号：TQ517[化学工程] TQ019