Energy analysis of impulse technology: Research-scale experimental papermaking trials and simulations of industrial applications

Andrew R. Martin (Corresponding Author), Mattias Drotz, Risto Talja, Sakari Kaijaluoto, Timo Puumalainen

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

The impact of impulse technology on a system-wide level has been investigated in this study for non-integrated fine paper and linerboard mills. Impulse unit data were obtained from STFI's EuroFEX research paper machine and correlations were developed in order to predict performance (dewatering, electricity consumption) under commercial operating conditions. Mill analyses were conducted for different configurations (i.e. one or two impulse units with and without web preheating) operating with roll temperatures of 200–320 °C. Results show that the ingoing dryness to the dryer section can be increased within a wide span, from 7 to 27 percentage points depending upon the grade and operating parameters. Even though electricity consumption rises dramatically from the inductively heated rolls, overall fuel savings of up to 20% can be achieved with either one or two impulse units operating at 200 °C (external power plant efficiency assumed to be 45%). Impulse technology appears to be neutral in terms of production costs since increases in energy costs are expected to be counterbalanced by savings in feedstock materials and enhanced product quality. Estimates show that this technology can lead to substantial reductions in dryer section sizes for new installations or alternatively enhance productivity in existing paper machines.
Original languageEnglish
Pages (from-to)2411 - 2425
Number of pages15
JournalApplied Thermal Engineering
Volume24
Issue number16
DOIs
Publication statusPublished - 2004
MoE publication typeA1 Journal article-refereed

Fingerprint

Papermaking
Industrial applications
Electricity
Preheating
Dewatering
Feedstocks
Costs
Power plants
Productivity
Temperature

Keywords

  • paper drying
  • impulse technology
  • correlations
  • system analysis
  • energy consumption
  • energy saving
  • paper machines
  • paper mills

Cite this

Martin, Andrew R. ; Drotz, Mattias ; Talja, Risto ; Kaijaluoto, Sakari ; Puumalainen, Timo. / Energy analysis of impulse technology : Research-scale experimental papermaking trials and simulations of industrial applications. In: Applied Thermal Engineering. 2004 ; Vol. 24, No. 16. pp. 2411 - 2425.
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title = "Energy analysis of impulse technology: Research-scale experimental papermaking trials and simulations of industrial applications",
abstract = "The impact of impulse technology on a system-wide level has been investigated in this study for non-integrated fine paper and linerboard mills. Impulse unit data were obtained from STFI's EuroFEX research paper machine and correlations were developed in order to predict performance (dewatering, electricity consumption) under commercial operating conditions. Mill analyses were conducted for different configurations (i.e. one or two impulse units with and without web preheating) operating with roll temperatures of 200–320 °C. Results show that the ingoing dryness to the dryer section can be increased within a wide span, from 7 to 27 percentage points depending upon the grade and operating parameters. Even though electricity consumption rises dramatically from the inductively heated rolls, overall fuel savings of up to 20{\%} can be achieved with either one or two impulse units operating at 200 °C (external power plant efficiency assumed to be 45{\%}). Impulse technology appears to be neutral in terms of production costs since increases in energy costs are expected to be counterbalanced by savings in feedstock materials and enhanced product quality. Estimates show that this technology can lead to substantial reductions in dryer section sizes for new installations or alternatively enhance productivity in existing paper machines.",
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Energy analysis of impulse technology : Research-scale experimental papermaking trials and simulations of industrial applications. / Martin, Andrew R. (Corresponding Author); Drotz, Mattias; Talja, Risto; Kaijaluoto, Sakari; Puumalainen, Timo.

In: Applied Thermal Engineering, Vol. 24, No. 16, 2004, p. 2411 - 2425.

Research output: Contribution to journalArticleScientificpeer-review

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T2 - Research-scale experimental papermaking trials and simulations of industrial applications

AU - Martin, Andrew R.

AU - Drotz, Mattias

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AU - Puumalainen, Timo

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AB - The impact of impulse technology on a system-wide level has been investigated in this study for non-integrated fine paper and linerboard mills. Impulse unit data were obtained from STFI's EuroFEX research paper machine and correlations were developed in order to predict performance (dewatering, electricity consumption) under commercial operating conditions. Mill analyses were conducted for different configurations (i.e. one or two impulse units with and without web preheating) operating with roll temperatures of 200–320 °C. Results show that the ingoing dryness to the dryer section can be increased within a wide span, from 7 to 27 percentage points depending upon the grade and operating parameters. Even though electricity consumption rises dramatically from the inductively heated rolls, overall fuel savings of up to 20% can be achieved with either one or two impulse units operating at 200 °C (external power plant efficiency assumed to be 45%). Impulse technology appears to be neutral in terms of production costs since increases in energy costs are expected to be counterbalanced by savings in feedstock materials and enhanced product quality. Estimates show that this technology can lead to substantial reductions in dryer section sizes for new installations or alternatively enhance productivity in existing paper machines.

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KW - energy saving

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