Parameters affecting disturbance propagation through the wet-end of a paper machine

J. Balderud, D. Wilson

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Historically, piping networks in the wet end of paper machines are assumed to add little to the dynamics outside pure transport delay. Consequently large vessels are included simply to dampen incoming stock concentration variations. This paper challenges this assumption by showing that including mixing and inertia terms in the piping equations, the pipe layout has a large effect in the important region of 10[-3] to 10[-1] Hz where stock concentration variations are present, but are outside the influence of the regulatory control systems.
Original languageEnglish
Pages (from-to)35-52
Number of pages17
JournalAppita Journal
Volume58
Issue number1
Publication statusPublished - 2005

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Pipe
Control systems

Keywords

  • pressure effect
  • damping
  • dynamic model
  • piping
  • paper machine

Cite this

Balderud, J. ; Wilson, D. / Parameters affecting disturbance propagation through the wet-end of a paper machine. In: Appita Journal. 2005 ; Vol. 58, No. 1. pp. 35-52.
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Balderud, J & Wilson, D 2005, 'Parameters affecting disturbance propagation through the wet-end of a paper machine', Appita Journal, vol. 58, no. 1, pp. 35-52.

Parameters affecting disturbance propagation through the wet-end of a paper machine. / Balderud, J.; Wilson, D.

In: Appita Journal, Vol. 58, No. 1, 2005, p. 35-52.

Research output: Contribution to journal › Article

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T1 - Parameters affecting disturbance propagation through the wet-end of a paper machine

AU - Balderud, J.

AU - Wilson, D.

PY - 2005

Y1 - 2005

N2 - Historically, piping networks in the wet end of paper machines are assumed to add little to the dynamics outside pure transport delay. Consequently large vessels are included simply to dampen incoming stock concentration variations. This paper challenges this assumption by showing that including mixing and inertia terms in the piping equations, the pipe layout has a large effect in the important region of 10[-3] to 10[-1] Hz where stock concentration variations are present, but are outside the influence of the regulatory control systems.

AB - Historically, piping networks in the wet end of paper machines are assumed to add little to the dynamics outside pure transport delay. Consequently large vessels are included simply to dampen incoming stock concentration variations. This paper challenges this assumption by showing that including mixing and inertia terms in the piping equations, the pipe layout has a large effect in the important region of 10[-3] to 10[-1] Hz where stock concentration variations are present, but are outside the influence of the regulatory control systems.

KW - pressure effect

KW - damping

KW - dynamic model

KW - piping

KW - paper machine

UR - http://www.appita.com.au/Publications.htm

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JO - Appita Journal

JF - Appita Journal

SN - 1038-6807

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ER -

Balderud J, Wilson D. Parameters affecting disturbance propagation through the wet-end of a paper machine. Appita Journal. 2005;58(1):35-52.

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