| Analysis of Mixing Characteristics of Batch Stirred Vessels Using the Networks-of-Zones Model |
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| 作者姓名： | 刘炜 王运东 费维扬 R.Mann |
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| 作者单位： | LIU Wei，WANG Yundong，FEI Weiyang，R. MannDepartment of Chemical Engineering，Tsinghua University，Beijing 100084，China;Department of Chemical Engineering，the University of Manchester Institute of Science and Technology，P.O.Box 88，Manchester M60 1QD，UK |
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| 基金项目： | Supported by the National Natural Science Foundationof China(No. 2 983 613 0 ) and Basic Research Fund ofTsinghua U niversity(No.JZ2 0 0 0 0 0 8) |
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| 摘 要： | IntroductionBatch and semi- batch stirred reactors are morecommon than continuous flow reactors in thechemical manufacturing industries. However,inspite of this practical predominance of batchreactors,the general body of literature to describemixing and reactions is confined almostexclusivelyto continuous flow reactors. There are manytheoretical analyses based on the stimulus- responseof continuous flow reactors,but no reasonablecorresponding theoretical framework for batchvessels withoutthrou…
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Analysis of Mixing Characteristics of Batch Stirred Vessels Using the Networks-of-Zones Model |
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| R.Mann.Analysis of Mixing Characteristics of Batch Stirred Vessels Using the Networks-of-Zones Model[J].Tsinghua Science and Technology,2002,7(6). |
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| Authors: | RMann |
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| Abstract: | Batch stirred vessels, being devoid of through flow, cannot be assessed by the classical response technique. However, visible inert tracers can be readily observed in a batch or semi-batch stirred vessel. Visible images of the mixing and dispersion of the tracer present a picture in both space and time of the mixing process. Axi-symmetric networks of backmixed zones were used in an image reconstruction approach to analytically characterize the mixing. Computer generated images were compared with experimental results. The qualitative agreement between the observed and calculated images suggests that the analysis of batch stirred reactors can be used to guide operational strategies to control internal concentration fields. |
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| Keywords: | mixing networks-of-zones simulation batch stirred reactor |
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