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Received September 13, 2010
Accepted February 21, 2011
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Dynamic modeling of paper drying processes
Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea
Korean Journal of Chemical Engineering, August 2011, 28(8), 1651-1657(7), 10.1007/s11814-011-0046-0
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Abstract
A dynamic model describing the behavior of a multi-cylinder drying section in paper production plants was developed based on the mass and heat balances around drying cylinders. The balance equations consist of sets of differential equations describing heat and mass transfer around the canvas, the web and the drying cylinders. Values of cylinder temperatures and moisture contents were estimated and compared with operation data. To obtain further information for energy consumption, the generation of entropy at each drying cylinder was investigated based on the model developed.
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Berrada M, Tarasiewicz S, Elkadiri ME, Radziszewsk PH, IEEE Trans. Ind. Electron., 44, 579 (1997)
Nilsson L, Chem. Eng. Process., 43(12), 1555 (2004)
Grander M, Computer simulation of the dryer section, Albany internationa, Paper Technology (2000)
Magnus K, Nordic Pulp and Paper Research Journal., 17 (2002)
Sivill L, Ahtila P, Thermal Engineering., 29, 3663 (2009)
Lu T, Shen SQ, Thermal Engineering., 27, 1248 (2007)
Yeo YK, Hwang KS, Yi SC, Kang H, Korean J. Chem. Eng., 21(4), 761 (2004)
Karlsson M, Papermaking Science and Technology Book 9, Fapet Oy., 55 (2002)
Schmidt E, Properties of water and steam in SI-units, Springer Verlag, Berlin, Germany (1969)
Persson H, Dynamic modeling and simulation of multi-cylinder paper dryers, Licentiate Thesis, Department of Chemical Engineering, Lund Institute of Technology (1998)
Heikkila P, A study on the drying process of pigment coated paper webs, PhD Thesis, Department of Chemical Engineering, Abo Akademi, Abo, Finland (1993)
