一种带夹层釜式微波反应器加热效果模拟分析

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摘要针对微波反应器加热均匀性的问题设计了一种带夹层的釜式微波反应器，运用多物理场仿真的方法，探究波导位置和夹层厚度对其加热效率和加热均匀性的影响规律。结果表明：波导位置在物料液面之下普遍可以取得较高的加热效率，但加热均匀性较差；夹层可以有效改善反应器的加热均匀性，并在部分情况下提高加热效率。通过运用响应面分析法对反应器结构进行优化：最高加热效率可以达到99.19%；加热均匀性最适宜的波导高度为389.74 mm，夹层厚度为30.09 mm。

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	聂国宇
	金光远
	吴雁泽
	崔政伟

关键词：微波反应器；加热效率；加热均匀性；响应面分析法；多物理场仿真

Abstract： A microwave oven with interlayer was designed for the problem of heating heterogeneity in microwave reactor. The multi-physics simulation method was used to explore the influence of waveguide position and interlayer thickness on heating efficiency and heating uniformity. The results show that the waveguide position can generally achieve higher heating efficiency under the liquid level of the material, but the heating uniformity is poor; and the interlayer can effectively improve the heating uniformity of the reactor and, in some cases, increase the heating efficiency. The response surface methodology (RSM) was used and the maximum heating efficiency of the optimized up to 99.19%, the waveguide height with the best heating uniformity is 389.74 mm, and the interlayer thickness is 30.09 mm.

Keywords： microwave reactor； heating efficiency； heating uniformity； response surface methodology； multiphysics simulation

Received 2019-07-12;

Fund:国家自然科学基金项目（21606109）；中央高校基本科研业务费专项资金（JUSRP51634B）。

Corresponding Authors: 金光远,E-mail:gyuanjin@jiangnan.edu.cn。 Email: gyuanjin@jiangnan.edu.cn

About author: 聂国宇(1994-),男,硕士研究生,现从事微波反应器方面的研究。

引用本文:

聂国宇, 金光远, 吴雁泽, 崔政伟.一种带夹层釜式微波反应器加热效果模拟分析[J]. 化学工业与工程, 2020,37(4): 49-57

Nie Guoyu, Jin Guangyuan, Wu Yanze, Cui Zhengwei.Simulation Analysis of Heating Effect of a Microwave Reactor with Interlayer Tank[J]. Chemcial Industry and Engineering, 2020,37(4): 49-57

[1] Danks T N. Microwave assisted synthesis of pyrroles[J]. Tetrahedron Letters, 1999, 40(20):3957-3960
[2] Orsat V, Raghavan G S V, Krishnaswamy K. Microwave technology for food processing[M]. USA:Elsevier, 2017
[3] Barham J P, Koyama E, Norikane Y, et al. Microwave flow:A perspective on reactor and microwave configurations and the emergence of tunable single-mode heating toward large-scale applications[J]. The Chemical Record, 2019, 19(1):188-203
[4] 钟汝能, 姚斌, 向泰, 等. 腔体内壁脊形凹槽对微波反应器加热效率及均匀性的影响[J]. 食品与机械, 2017, 33(4):81-85 Zhong Runeng, Yao Bin, Xiang Tai, et al. Influence of ridge groove structure of the inner walls on heating efficiency and uniformity of microwave reactor[J]. Food & Machinery, 2017, 33(4):81-85(in Chinese)
[5] 钟汝能, 姚斌, 向泰, 等. 圆柱形凸槽结构对微波反应器加热效率及均匀性的影响[J]. 云南大学学报:自然科学版, 2017, 39(6):981-987 Zhong Runeng, Yao Bin, Xiang Tai, et al. Influence of cylindrical convex groove structure on heating efficiency and uniformity of microwave reactor[J]. Journal of Yunnan University:Natural Sciences Edition, 2017, 39(6):981-987(in Chinese)
[6] Liu S, Fukuoka M, Sakai N. A finite element model for simulating temperature distributions in rotating food during microwave heating[J]. Journal of Food Engineering, 2013, 115(1):49-62
[7] Geedipalli S S R, Rakesh V, Datta A K. Modeling the heating uniformity contributed by a rotating turntable in microwave ovens[J]. Journal of Food Engineering, 2007, 82(3):359-368
[8] Meng Q, Lan J, Hong T, et al. Effect of the rotating metal patch on microwave heating uniformity[J]. Journal of Microwave Power and Electromagnetic Energy, 2018, 52(2):94-108
[9] Pitchai K, Chen J, Birla S, et al. Multiphysics modeling of microwave heating of a frozen heterogeneous meal rotating on a turntable[J]. Journal of Food Science, 2015, 80(12):E2803-E2814
[10] Sebera V, Nasswettrová A, Nikl K. Finite element analysis of mode stirrer impact on electric field uniformity in a microwave applicator[J]. Drying Technology, 2012, 30(13):1388-1396
[11] Romano V R, Marra F, Tammaro U. Modelling of microwave heating of foodstuff:Study on the influence of sample dimensions with a FEM approach[J]. Journal of Food Engineering, 2005, 71(3):233-241
[12] 李涛, 张伟, 陈海龙, 等. 频率和功率对轮胎微波加热的影响[J]. 橡胶工业, 2016, 63(6):365-368 Li Tao, Zhang Wei, Chen Hailong, et al. Influence of frequency and power on microwave heating for tire[J]. China Rubber Industry, 2016, 63(6):365-368(in Chinese)
[13] Tortajada E D, Gonzalez P P, Morcillo A D, et al. Optimisation of electric field uniformity in microwave heating systems by means of multi-feeding and genetic algorithms[J]. International Journal of Materials and Product Technology, 2007, 29(1):149-162
[14] 戴辉明, 郭雯, 程裕东, 等. 不同形状包装食品在微波加热过程中的三维温度分布[J]. 食品工业科技, 2015, 36(13):82-86, 102 Dai Huiming, Guo Wen, Cheng Yudong, et al. Three-Dimensional temperature distribution of the packaged foods with different shapes during microwave heating[J]. Science and Technology of Food Industry, 2015, 36(13):82-86, 102(in Chinese)
[15] Meredith R. Engineers' handbook of industrial microwave heating[M]. UK:The Institution of Engineering and Technology, Michael Faraday House, 1998
[16] Curcio S, Aversa M, Calabrò V, et al. Simulation of food drying:FEM analysis and experimental validation[J]. Journal of Food Engineering, 2008, 87(4):541-553
[17] Pitchai K, Birla S L, Subbiah J, et al. Coupled electromagnetic and heat transfer model for microwave heating in domestic ovens[J]. Journal of Food Engineering, 2012, 112(1/2):100-111
[18] Yeong S P, Law M C, You K, et al. A coupled electromagnetic-thermal-fluid-kinetic model for microwave-assisted production of palm fatty acid distillate biodiesel[J]. Applied Energy, 2019, 237:457-475