Extending EMMS-based models to CFB boiler applications

作     者：Bona Lu Nan Zhang Wei Wang Jinghai Li 

作者机构：State Key Laboratory of Multi-phase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2012年第10卷第6期

页      面：663-671页

核心收录：

学科分类：080703[工学-动力机械及工程] 081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 081701[工学-化学工程] 

基　　金：supported by the Natural Science Foundation of China under Grant Nos. 21106157,21176240 and 51106168 Ministry of Science & Technology (MOST) under Grant No. 2007AA050302-03 the "Strategic Priority Research Program" of Chinese Academy of Sciences under Grant Nos. KGCX2-YW-222 and XDA07080202 

主　　题：EMMS Cluster Circulating fluidized bed Boiler CFD Simulation 

摘      要：Recently, EMMS-based models are being widely applied in simulations of high-throughput circulating fluidized beds （CFBs） with fine particles. Its use for low flux systems, such as CFB boiler （CFBB）, still remains unexplored. In this work, it has been found that the original definition of cluster diameter in EMMS model is unsuitable for simulations of the CFB boiler with low solids flux. To remedy this, we propose a new model of cluster diameter. The EMMS-based drag model （EMMS/matrix model） with this revised cluster definition is validated through the computational fluid dynamics （CFD） simulation of a CFB boiler.