The Chemical Engineering Journal and the Biochemical Engineering Journal最新文献_第8页

Hydrodynamics and mass transfer in a cocurrent packed column: A theoretical study 共流填料柱的流体力学与传质:理论研究

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-08-01 DOI: 10.1016/0923-0467(96)03080-1

S.A. Beg, M.M. Hassan, M.S.M. Naqvi

引用次数: 9

Development of adaptive neural networks for flexible control of batch processes 批量过程柔性控制的自适应神经网络研究

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-08-01 DOI: 10.1016/0923-0467(96)03078-3

J.-L. Dirion, M. Cabassud, M.V. Le Lann, G. Casamatta

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引用次数: 8

A new solution technique of moving boundary problems for gas-solid reactions; application to half-order volume reaction model 气固反应移动边界问题的一种新的求解方法半阶体积反应模型的应用

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-08-01 DOI: 10.1016/0923-0467(96)03079-5

E. Jamshidi, H. Ale Ebrahim

引用次数: 10

Measurement of the rate of energy dissipation around an oscillating grid by an energy balance approach 用能量平衡法测量振荡网格周围的能量耗散率

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-08-01 DOI: 10.1016/0923-0467(96)03077-1

D.H. Bache, E. Rasool

{"title":"Measurement of the rate of energy dissipation around an oscillating grid by an energy balance approach","authors":"D.H. Bache, E. Rasool","doi":"10.1016/0923-0467(96)03077-1","DOIUrl":"10.1016/0923-0467(96)03077-1","url":null,"abstract":"<div>An experimental study was carried out to evaluate ϵ around an oscillating grid producing zero-mean shear flow. The spatial average <math><mtext>ϵ</mtext></math> throughout the mixing vessel was determined by the mesurement of the net power input of the grid, this complying with a relationship of the form <math><mtext>ϵ</mtext></math>αf3DS3 Re−<math><mtext>1</mtext><mtext>2</mtext></math> h−1, in which fD is the driving frequency, S is the stroke length, Re the grid Reynolds number and h the depth of the mixing column. From mesurements of the power spectrum using laser Doppler anemometry, spectral collapse of the power spectra in the domain of the energy containing eddies at different distances from the grid was demonstrated using u2 (u as the turbulence r.m.s. velocity) and τE (Eulerian time integral scale) as the scaling parameters. From a balance of the power input and the energy losses, together with the feature of spectral collapse, it was shown that ϵ could be estimated by ϵ = γ1u2/τE in this domain of the power spectrum with γ1 as a multiplying coefficient independent of distance from the grid.From the spatial dependence of the turbulence parameters it was evident that within about 1.5 mesh lengths of the grid there was a transition region beyond which it was found that spatial variations were consistent with the dependences uαz−1, τEαz2, and ϵαz−4, where z is the distance from the grid.</div>","PeriodicalId":101226,"journal":{"name":"The Chemical Engineering Journal and the Biochemical Engineering Journal","volume":"63 2","pages":"Pages 105-115"},"PeriodicalIF":0.0,"publicationDate":"1996-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0923-0467(96)03077-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84114726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Abrasion and breakage phenomena in mechanically stirred crystallizers 机械搅拌结晶器中的磨损和断裂现象

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-08-01 DOI: 10.1016/0923-0467(96)03082-5

B. Biscans , P. Guiraud , C. Laguérie , A. Massarelli , B. Mazzarotta

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引用次数: 19

Abrasion and breakage phenomena in mechanically stirred crystallizers 机械搅拌结晶器中的磨损和断裂现象

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-08-01 DOI: 10.1016/0923-0467(96)03082-5

B. Biscans, P. Guiraud, C. Laguerie, A. Massarelli, B. Mazzarotta

引用次数: 19

Modeling of liquid emulsion membranes facilitated by two carriers 两种载体促进乳化液膜的建模

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-08-01 DOI: 10.1016/0923-0467(96)03097-7

Young Sun Mok , Won Kook Lee , Yong Kuk Lee

引用次数: 0

Study of anthraquinone reaction with sodium sulphide 蒽醌与硫化钠反应的研究

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-07-01 DOI: 10.1016/0923-0467(95)03071-9

F. Rodríguez, J. Revenga, J. Tijero

引用次数: 2

Transitional mixing in multiple-turbine agitated tanks 多涡轮搅拌槽内的过渡混合

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-07-01 DOI: 10.1016/0923-0467(95)03072-7

Jorge M.T. Vasconcelos, Jorge M. Barata, S.S. Alves

引用次数: 12

Liquid—solid mass transfer in packed beds of variously shaped particles at low Reynolds numbers: experiments and model 低雷诺数下不同形状颗粒填充床的液固传质:实验与模型

The Chemical Engineering Journal and the Biochemical Engineering Journal Pub Date : 1996-07-01 DOI: 10.1016/0923-0467(96)03073-4

Dominique Seguin, Agnès Montillet, Danielle Brunjail, Jacques Comiti

引用次数: 38