miun.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A simulation-based method for evaluation of energy system cooperation between pulp and paper mills and a district heating system: A case study
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. FrontWay AB. (FSCN)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. Sundsvall Energi AB. (FSCN)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.ORCID iD: 0000-0001-6983-3121
2017 (English)In: 19 World academy of science, engineering and technology conference proceedings, 2017, Vol. 19, p. 1158-1164Conference paper, Published paper (Refereed)
Abstract [en]

A step towards reducing greenhouse gases and energy consumption is to collaborate with the energy system between several industries. This work is based on a case study on integration of pulp and paper mills with a district heating system in Sundsvall, Sweden. 

Present research shows that it is possible to make a significant reduction in the electricity demand in the mechanical pulping process. However, the profitability of the efficiency measures could be an issue, as the excess steam recovered from the refiners decreases with the electricity consumption. A consequence will be that the fuel demand for steam production will increase. If the fuel price is similar to the electricity price it would reduce the profit of such a project. If the paper mill can be integrated with a district heating system, it is possible to upgrade excess heat from a nearby kraft pulp mill to process steam via the district heating system in order to avoid the additional fuel need. The concept is investigated by using a simulation model describing both the mass and energy balance as well as the operating margin. Three scenarios were analyzed: reference, electricity reduction and energy substitution. The simulation show that the total input to the system is lowest in the Energy substitution scenario. Additionally, in the Energy substitution scenario the steam from the incineration boiler covers not only the steam shortage but also a part of the steam produced using the biofuel boiler, the cooling tower connected to the incineration boiler is no longer needed and the excess heat can cover the whole district heating load during the whole year. 

The study shows a substantial economic advantage if all stakeholders act together as one system. However, costs and benefits are unequally shared between the actors. This means that there is a need for new business models in order to share the system costs and benefits. 

Place, publisher, year, edition, pages
2017. Vol. 19, p. 1158-1164
Keyword [en]
energy system, cooperation, simulation method, excess heat, district heating
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:miun:diva-31561OAI: oai:DiVA.org:miun-31561DiVA: diva2:1140422
Conference
ICESM 2017: 19th International Conference on Energy Systems and Management, Copenhagen, June 11-12, 2017
Note

Founding’s from KK-stiftelsen, FrontWay AB and Sundsvall Energi AB are acknowledged by the authors.

Available from: 2017-09-12 Created: 2017-09-12 Last updated: 2018-01-11Bibliographically approved

Open Access in DiVA

No full text in DiVA

Authority records BETA

Hedlund, AlexanderStengard, Anna-KarinBjörkqvist, Olof

Search in DiVA

By author/editor
Hedlund, AlexanderStengard, Anna-KarinBjörkqvist, Olof
By organisation
Department of Chemical Engineering
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 117 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf