Multiscale Coupling Framework for Modeling of Large-Size Biomass Particle Gasification in Fluidized Beds

IMECH-IR > 非线性力学国家重点实验室

	Multiscale Coupling Framework for Modeling of Large-Size Biomass Particle Gasification in Fluidized Beds
	Jin GD(晋国栋); Jin, GD (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2013-08-21
卷号	52 期号:33 页码:11344-11353
ISSN	0888-5885
摘要	This paper is devoted to addressing a multiscale coupling framework for modeling of large-size biomass particle gasification in fluidized beds, where the large diffusions due to the temperature and concentration gradients in large-size particles strongly affect gasification process. Directly incorporating a single particle model (SPM) into a conventional fluidized-bed model tremendously increases the computational cost. In this paper, we propose a loose coupling framework between the SPM and the discrete element method (DEM)-Eulerian continuum model. The SPM is based on detailed reaction mechanisms and has been validated against experimental results. The rationality of the coupling is based on the observations from the SPM that the temperature is the dominating factor and the surrounding gas velocity is a secondary one to the gasification. For this purpose, we use sand particles as thermal carrier to keep the surrounding temperature statistically stable. We then simulated the gasification of beech wood particles mixed with sand particles in a bubbling fluidized bed. The entrainment and mixing of wood particles with sand particles can be observed and the particle distribution and the composition of gas phase can be obtained. The proposed method provides a potential way to account for the gasification process of large-size biomass particles in fluidized beds.
关键词	Multiscale Modeling Biomass Gasification Large-size Particle Fluidized Beds
学科领域	流体力学 ; 多相流 ; 化工流体力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000323536000013
项目资助者	Max-Planck Society; NSFC [11072247]; NSAF [U1230126]
课题组名称	LNM湍流
论文分区	二类/Q2
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47276
专题	非线性力学国家重点实验室
通讯作者	Jin, GD (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Jin GD,Jin, GD . Multiscale Coupling Framework for Modeling of Large-Size Biomass Particle Gasification in Fluidized Beds[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2013,52,33,:11344-11353.
APA	Jin GD,&Jin, GD .(2013).Multiscale Coupling Framework for Modeling of Large-Size Biomass Particle Gasification in Fluidized Beds.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,52(33),11344-11353.
MLA	Jin GD,et al."Multiscale Coupling Framework for Modeling of Large-Size Biomass Particle Gasification in Fluidized Beds".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 52.33(2013):11344-11353.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-J2013-245.pdf（1857KB）			开放获取	使用许可	浏览请求全文