On the new numerical solution of corona‐electrostatic electric field model with inductive electrostatic electrode for the industrial separation of granular mixture

Emerald - Tập 38 Số 5 - Trang 819-836 - 2009
ArmandCaron1
1Département QLIO, IUT de Lorient, Lorient, France and Laboratoire d'Ingénierie des MATériaux de Bretagne‐Sud, Université de Bretagne‐Sud, Lorient, France

Tóm tắt

PurposeThe purpose of this paper is to study the industrial separation of granular mixture by approximation of combined corona‐electrostatic electric field with feeder and inductive electrostatic electrode.Design/methodology/approachThe original numerical method developed in Caron's Kybernetes paper is used and extended to an industrial construction. The method gives a mathematical model of an industrial process and converts the non‐linear partial derivative system into an iterative system of linear equations. Using the well‐known finite difference approximation, a numerical solution is computed very quickly.FindingsIn order to really obtain a computer‐aided numerical solution, it is necessary to define a really manageable approximation method. The new simulation results are detailed and show better results for the steady state in time processing and finally, to imagine improvements of the industrial processes.Originality/valueThe paper shows the fast numerical solution, which leads to confidence in the numerical approximations to imagine improvements of the industrial processes easily.

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Tài liệu tham khảo

Abdel‐Salam, M. and Al‐Hamouz, Z. (1995), “Analysis of monopolar ionized fields as influenced by ion diffusion”, IEEE Transactions on Industrial Applications, Vol. 31, pp. 484‐93.

Adamiak, K. (1997), “Numerical modeling of tribo‐charge powder coating systems”, Journal of Electrostatics, Vol. 40/41, pp. 395‐400.

Bohm, J. (1982), Electrostatic Precipitators, Elsevier, Amsterdam.

Brands, L., Beier, P.M. and Stahl, I. (2001), “Electrostatic separation”, Ullmann's Encyclopedia of Industrial Chemistrys, Wiley‐VCH, Weinheim.

Caron, A. (1989a), “Approximations numériques de problèmes non linéaires. Linéarisation et résolution par un algorithme sous contrainte de régularité”, thesis, University of Pierre and Marie Curie, Paris.

Caron, A. (1989b), “The iterative method with associated constraints to solve numerically non linear problem, in case of finite number of theoretical solutions”, Proceedings of the Fifth International Symposium on Numerical Method in Engineering, Springer, New York, NY, pp. 201‐8.

Caron, A. (2008), “New results on the approximate solution of the non‐linear partial derivative equation system of corona‐electrostatic separation”, Kybernetes, Vol. 38 No. 5, this issue.

Caron, A. and Dascalescu, L. (2004), “Numerical modeling of combined corona‐electrostatic fields”, Journal of Electrostatics, Vol. 61, pp. 43‐55.

Dascalescu, L. (1994), “Mouvements des particules conductrices dans un separateur a haute tension pour materiaux granulaires”, Journal of Electrostatics, Vol. 32, pp. 305‐6.

Dascalescu, L., Tobazeon, R. and Atten, P. (1995), “Behaviour of conductive particles in corona‐dominated electric fields”, Journal of Physics D: Applied Physics, Vol. 28, pp. 1611‐8.

Dascalescu, L., Mihalcioiu, A., Stochita, A. and Notingher, P. (2005), “Charge‐decay characteristics of granular materials forming mono‐layers at the surface of grounded electrodes”, IEEE Transactions on Industrial Applications, Vol. 44, pp. 20‐4.

Dascalescu, L., Iuga, A., Morar, R., Neamtu, V., Suarasan, I., Samuila, A. and Rafiroiu, D. (1993), “Corona and electrostatic electrodes for high‐tension separators”, Journal of Electrostatics, Vol. 29, pp. 211‐25.

Dumitran, L.M., Dascalescu, L., Atten, P. and Notingher, P.V. (2004), “Computational and experimental study of ionic space charge generated by combined corona‐electrostatic electrode systems”, Conference Proceedings of the IEEE/IAS 39th Annual Meeting, Seattle, WA, Vol. 3, pp. 1577‐83.

Elmoursi, A.A. and Castle, G.S.P. (1987), “Modelling of corona characteristics in a wire‐duct precipitator using the charge simulation technique”, IEEE Transactions on Industrial Applications, Vol. 23, pp. 95‐102.

Euvrard, D. (1995), Résolution numérique des équations aux dérivés partielles, différences finies et éléments finis, Masson, Paris.

Hughes, J.F. (1997), Electrostatic Particle Charging, Wiley, New York, NY.

Inculet, I.I. (1986), Electrostatic Mineral Separation, Wiley, New York, NY.

Iuga, A., Morar, R., Samuila, A. and Dascalescu, L. (2001), “Electrostatic separation of metals and plastics from granular industrial wastes”, IEE Proceedings – Science, Measurement and Technology, Vol. 148, pp. 47‐54.

Iuga, A., Dascalescu, L., Morar, R., Csorvassy, I. and Neamtu, V. (1989), “Corona‐electrostatic separators for recovery of waste non‐ferrous metals”, Journal of Electrostatics, Vol. 23, pp. 235‐43.

Janischewsky, W. and Gela, G. (1995), “Finite element solution for electric fields of coronating transmission lines”, IEEE Transactions on Power Apparatus and Systems, Vol. 98, pp. 1000‐12.

Lawver, J.E. and Dyrenforth, W.P. (1973), “Electrostatic separation”, in Moore, A.D. (Ed.), Electrostatics and Its Applications, Wiley, New York, NY, pp. 221‐49.

McAllister, D., Smith, J.R. and Diserens, N.J. (1987), Computer Modelling in Electrostatics, Research Studies Press, Letchworth.

Meroth, A. (1997), Numerical Electrohydrodynamics in Electrostatic Precipitators, Dr. Ing. thesis, University of Karlsruhe, Logos, Berlin.

Miller, J., Riehle, C., Schwab, A.J. and Löffer, F. (1994), “Numerische Feldberechnung in Elektrofiltern im Hinblick auf elektrisch ähnliche Betribszustände”, Journal of Electrostatics, Vol. 33, pp. 213‐28.

Morar, R., Iuga, A., Dascalescu, L. and Samuila, A. (1993), “Factors which influence the insulation‐metal electroseparation”, Journal of Electrostatics, Vol. 30, pp. 403‐12.

Rafinoriu, D., Munteanu, C., Morar, R., Meroth, A., Atten, P. and Dascalescu, L. (2001), “Computation of the electric field in wire electrode arrangements for electrostatic processes applications”, Journal of Electrostatics, Vol. 51‐52, pp. 571‐7.

Rajanikanth, B.S. and Prabhakar, B.R. (1994), “Modeling of prebreakdown VI characteristics of a wire‐plate electrostatic precipitator operating under combined dc‐pulse energization”, IEEE Transactions on Dielectrics & Electrical Insulation, Vol. 1, pp. 1058‐67.

Ralston, O.C. (1961), Electrostatic Separation of Mixed Granular Materials, Elsevier, Amsterdam.

Tilmatine, A., Flazi, S., Medied, K., Ramdani, Y. and Dascalescu, L. (2004), “Séparation électrostatique: compléments des procédés mécaniques de recyclage des déchets industriels”, Journal of Electrostatics, Vol. 61, pp. 21‐30.