CAS OpenIR
Temperature field simulation of polyolefin-absorber mixture by FDTD-FDM model during microwave heating
Jing, Xiaodong1,2; Wen, Hao1; Xu, Zhihong1
2020-11-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume28Issue:11Pages:2900-2917
AbstractThis 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.
KeywordMicrowave heating Temperature field Finite difference time domain Finite difference method
DOI10.1016/j.cjche.2020.06.004
Language英语
WOS KeywordHIGH-DENSITY POLYETHYLENE ; DIELECTRIC-PROPERTIES ; THERMAL-DEGRADATION ; ASSISTED PYROLYSIS ; MILD CRACKING ; WASTE ; REACTOR ; POLYPROPYLENE ; PLASTICS ; LDPE
Funding ProjectNational 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 Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational 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"
WOS IDWOS:000600417400020
PublisherCHEMICAL INDUSTRY PRESS CO LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42857
Collection中国科学院过程工程研究所
Corresponding AuthorJing, Xiaodong
Affiliation1.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
Recommended Citation
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.
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