Temperature field simulation of polyolefin-absorber mixture by FDTD-FDM model during microwave heating

doi:10.1016/j.cjche.2020.06.004

	Temperature field simulation of polyolefin-absorber mixture by FDTD-FDM model during microwave heating
	Jing, Xiaodong 1,2; Wen, Hao 1; Xu, Zhihong 1
刊名	CHINESE JOURNAL OF CHEMICAL ENGINEERING
	2020-11-01
卷号	28 期号:11 页码:2900-2917
关键词	Microwave heating Temperature field Finite difference time domain Finite difference method
ISSN号	1004-9541
DOI	10.1016/j.cjche.2020.06.004
英文摘要	This work has performed a numerical simulation of the temperature field during microwave heating of polyolefin-absorber mixture by means of a combined electric and thermal model. A finite difference time domain was used to model the electric field distribution within the cavity, while the finite difference method was used to calculate the temperature field distribution in different reactors. This study has focused only on the process from room temperature to 500 K for reducing heating time and energy consumption. This temperature range is a process with high energy consumption, difficult to control and great influence on the follow-up reaction. Temperature dependence of dielectric properties and thermal properties of heated materials are fully considered and simulated through an iterative process. The simulation results show that input power, the size and location of the heated materials, the position of the waveguide, and the kinds of microwave absorbers are important factors affecting the heating process. As a result, the uniform temperature distribution (the temperature difference T-d < 10 K) can be achieved by choosing the appropriate input power (500-2000W). the appropriate proportion of microwave absorber (the volume ratio of SIC to HDPE is 30:70). and combining with the moving and rotating of the heated materials. The uniform temperature field obtained without mechanical stirring is very important for reducing energy consumption and subsequent reactions. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[21776288] ; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences[MPCS-2020-A-01] ; National R&D Infrastructure and Facility Development Program of China, Fundamental Science Data Sharing Platform[DKA2017-12-02-05] ; CAS informatization project during the Thirteenth Five-Year Plan "Key Database Construction and Application Services for the Discipline of Chemistry"[XXH1350303-103]
WOS关键词	HIGH-DENSITY POLYETHYLENE ; DIELECTRIC-PROPERTIES ; THERMAL-DEGRADATION ; ASSISTED PYROLYSIS ; MILD CRACKING ; WASTE ; REACTOR ; POLYPROPYLENE ; PLASTICS ; LDPE
WOS研究方向	Engineering
语种	英语
出版者	CHEMICAL INDUSTRY PRESS CO LTD
WOS记录号	WOS:000600417400020
资助机构	National Natural Science Foundation of China ; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences ; National R&D Infrastructure and Facility Development Program of China, Fundamental Science Data Sharing Platform ; CAS informatization project during the Thirteenth Five-Year Plan "Key Database Construction and Application Services for the Discipline of Chemistry"
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42856]
专题	中国科学院过程工程研究所
通讯作者	Jing, Xiaodong
作者单位	1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jing, Xiaodong,Wen, Hao,Xu, Zhihong. Temperature field simulation of polyolefin-absorber mixture by FDTD-FDM model during microwave heating[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2020,28(11):2900-2917.
APA	Jing, Xiaodong,Wen, Hao,&Xu, Zhihong.(2020).Temperature field simulation of polyolefin-absorber mixture by FDTD-FDM model during microwave heating.CHINESE JOURNAL OF CHEMICAL ENGINEERING,28(11),2900-2917.
MLA	Jing, Xiaodong,et al."Temperature field simulation of polyolefin-absorber mixture by FDTD-FDM model during microwave heating".CHINESE JOURNAL OF CHEMICAL ENGINEERING 28.11(2020):2900-2917.