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Numerical Analysis: PROCEEDINGS OF THE COLloquium, Lausanne, October 11-13, 1976 (International Series of Numerical Mathematics): Proceedings of the ... Analysis Lausanne, October 11-13, 1976: 37 - Brossura
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Nowadays aluminium is essentially produced according to the Hall-H~roult process, in other words, by electrolysis of alumina A1 0 desolved in molten cryolite Na A1F at a 2 3 3 6 temperature of about 950 °C. In a reduction plant cells are connected in series. For technical and economical reasons, it is advisable to choose large nominal currents (150 kAle For such intensities, the electromagnetic effects in the cells become important. In particular, these effects bring about movements in the liauid metal, as well as interface variations in level, that are detrimental to efficiencv and energy consumption [l,~ • For an optimal design, it is necessary to predetermine the electromagnetic behaviour of each new typ of cells. It is specially necessary to calculate the repartition of the current density in each point of the cell (electric problem), and the magnetic induction produced in the liquid metal by the currents circulating in the cell itself, in the near cells and in the external conductors (magnetic problem). Electric problem formulation Stationary electric phenomena are described by the equations ~ . . . rotE=O (1) . . . divJ=O (2) t=f1 (3) The first equation can be replaced by t=-g;tdU (4) where U is the electric potential. J. -M. BLANC 131 ~ -+ We can eliminate E and J between the equations above. In an homogeneous material, we obtain a Laplace's equation (5) 4u=0 On surfaces separating material of different resistivities, . . . .
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Numerical Analysis: Proceedings of the Colloquium on Numerical Analysis. Lausanne, October 11 - 13, 1976.
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Basel: Birkhäuser, 1977
ISBN 10: 3764309393
ISBN 13: 9783764309398
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Paperback. Condizione: Very Good. Series: International Series of Numerical Mathematics 248p large format paperback, grey cover with red line, reproduced from typescriprt, light markings from an engineering library, very good Language: English. Codice articolo 185736
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Numerical analysis. Proceedings of the Colloquium on Numerical Analysis Lausanne October 11 - 13 1976.
Editore:
Basel, Birkhäuser, 1977
ISBN 10: 3764309393
ISBN 13: 9783764309398
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Numerical Analysis: Proceedings of the Colloquium on Numerical Analysis Lausanne, October 11?13, 1976 (International Series of Numerical Mathematics) DESCLOUX and MARTI
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Birkhäuser, 1977
ISBN 10: 3764309393
ISBN 13: 9783764309398
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Numerical Analysis : Proceedings of the Colloquium on Numerical Analysis Lausanne, October 11-13, 1976
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Numerical Analysis: Proceedings of the Colloquium on Numerical Analysis Lausanne, October 11-13, 1976 (International Series of Numerical Mathematics, 37)
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Numerical Analysis (Paperback)
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ISBN 10: 3764309393
ISBN 13: 9783764309398
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Paperback. Condizione: new. Paperback. Nowadays aluminium is essentially produced according to the Hall-H~roult process, in other words, by electrolysis of alumina A1 0 desolved in molten cryolite Na A1F at a 2 3 3 6 temperature of about 950 C. In a reduction plant cells are connected in series. For technical and economical reasons, it is advisable to choose large nominal currents (150 kAle For such intensities, the electromagnetic effects in the cells become important. In particular, these effects bring about movements in the liauid metal, as well as interface variations in level, that are detrimental to efficiencv and energy consumption [l,~ * For an optimal design, it is necessary to predetermine the electromagnetic behaviour of each new typ of cells. It is specially necessary to calculate the repartition of the current density in each point of the cell (electric problem), and the magnetic induction produced in the liquid metal by the currents circulating in the cell itself, in the near cells and in the external conductors (magnetic problem). Electric problem formulation Stationary electric phenomena are described by the equations ~ .rotE=O (1) .divJ=O (2) t=f1 (3) The first equation can be replaced by t=-g;tdU (4) where U is the electric potential.J. -M. BLANC 131 ~ -+ We can eliminate E and J between the equations above. In an homogeneous material, we obtain a Laplace's equation (5) 4u=0 On surfaces separating material of different resistivities, . Nowadays aluminium is essentially produced according to the Hall-H~roult process, in other words, by electrolysis of alumina A1 0 desolved in molten cryolite Na A1F at a 2 3 3 6 temperature of about 950 A0C. In a reduction plant cells are connected in series. For technical and economical reasons, it is advisable to choose large nominal currents (150 kAle For such intensities, the electromagnetic effects in the cells become important. In particular, these effects bring about movements in the liauid metal, as well as interface variations in level, that are detrimental to efficiencv and energy consumption [l,~ a For an optimal design, it is necessary to predetermine the electromagnetic behaviour of each new typ of cells. It is specially necessary to calculate the repartition of the current density in each point of the cell (electric problem), and the magnetic induction produced in the liquid metal by the currents circulating in the cell itself, in the near cells and in the external conductors (magnetic problem). Electric problem formulation Stationary electric phenomena are described by the equations ~ . . . rotE=O (1) . . . divJ=O (2) t=f1 (3) The first equation can be replaced by t=-g;tdU (4) where U is the electric potential. J. -M. BLANC 131 ~ -+ We can eliminate E and J between the equations above. In an homogeneous material, we obtain a Laplace's equation (5) 4u=0 On surfaces separating material of different resistivities, . . Shipping may be from multiple locations in the US or from the UK, depending on stock availability. Codice articolo 9783764309398
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Numerical Analysis. Proceedings of the Colloquium on Numerical Analysis. Lausanne, October 11-13, 1976. (= ISNM / International Series of Numerical Mathematics , Volume 37).
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248 S. mmit Abbildungen, 3764309393 Sprache: Englisch Gewicht in Gramm: 420 Groß 8°, Original-Karton (Softcover), Bibliotheks-Exemplar (ordnungsgemäß entwidmet) mit kleinem Rückenschild, Stempel auf Titel, insgesamt gutes und innen sauberes Exemplar, Codice articolo 62218
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Numerical Analysis: Proceedings of the Colloquium on Numerical Analysis Lausanne, October 11-13, 1976 (International Series of Numerical Mathematics, 37)
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Numerical Analysis: Proceedings of the Colloquium on Numerical Analysis Lausanne, October 11 13, 1976
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