Du är här

Reducing Moisture Transients in the Paper-Machine Drying Section with the Mid-ranging Control Technique

Författare:
Publiceringsår: 2005
Språk: Engelska
Sidor: 150-155
Publikation/Tidskrift/Serie: Nordic Pulp and Paper Research Journal
Volym: 20
Nummer: 2
Dokumenttyp: Artikel
Förlag: Swedish association of pulp and paper engineers

Sammanfattning

A new control strategy using feedback control has been developed for the multi-cylinder paper dryer configuration to reduce moisture transients in the drying section. The air system in the blow boxes was used to control the fast moisture transients in the paper machine. The new control system was combined with a previously developed physical model and was then compared with a conventional moisture control system. The comparison concerned the ability to restore the moisture ratio for two different dynamic changes, a moisture disturbance and a paper grade change. By combining the conventional steam control loop with an air loop, it was possible to significantly decrease the transient of the moisture disturbance.

Disputation

Nyckelord

  • Technology and Engineering

Övrigt

Published
Yes
  • ISSN: 0283-2631

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen

LERU logo U21 logo