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Case Study: Method for Systematic Analysis of Paper Machine Multicylinder Drying Section

Authors :
B. Lebeau
J. Veyre
A. Lemaitre
C. Foulard
Source :
IFAC Proceedings Volumes. 13:261-270
Publication Year :
1980
Publisher :
Elsevier BV, 1980.

Abstract

Drying is a very important phase of papermaking. Both the energy consumption and investment costs required by this process are high. This paper describes a method giving systematic analysis of industrial drying sections during their run and based on a mathematical model of paper cylinder drying. Working on measurements data, it is possible to compute the heat and mass transfer coefficient values to get the complete identification of the considered drying section. Then, it is possible to test by simulation, the effect of new investments (increasing the number of cylinders, moving the size-press location, etc) or of operating point changes (increase of steam-pressure or moisture content at the entrance... etc) on the machine production and on the steam consumption. This method has been used for an industrial printing paper machine. Computer simulations have allowed to get the optimal size-press location in the drying section and the machine speed variations obtained after the increase of the number of cylinders and this for three different basis weights.

Details

ISSN :
14746670
Volume :
13
Database :
OpenAIRE
Journal :
IFAC Proceedings Volumes
Accession number :
edsair.doi.dedup.....26032654a1abb5c5df7923dc4e52714e
Full Text :
https://doi.org/10.1016/s1474-6670(17)64939-5