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A systems approach to the reduction of oil demand in a Swedish board mill
Linköping University, Department of Mechanical Engineering, Energy Systems. Linköping University, The Institute of Technology.
2004 (English)In: Energy, ISSN 0360-5442, Vol. 29, no 1, 103-124 p.Article in journal (Refereed) Published
Abstract [en]

The possibility of reducing oil demand in the board mill at Skoghall, operated by Stora Enso, is analysed from a systems perspective. Identification of different key factors influencing the potential for reducing oil demand includes measures within the mill, e.g. steam reduction measures, and boundary conditions, such as electricity prices. Different key factors influence each other to different extents, indicating that an analysis concerning interactions between the different factors is also vital. A survey of these factors influencing oil demand has been carried out and a sensitivity analysis, including a factorial design method, has been applied to the subject.

Place, publisher, year, edition, pages
2004. Vol. 29, no 1, 103-124 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-22917DOI: 10.1016/ ID: 2272OAI: diva2:243230
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2013-02-11
In thesis
1. Analysing strategic energy-related investments in process industries: applied studies at a pulp and board mill
Open this publication in new window or tab >>Analysing strategic energy-related investments in process industries: applied studies at a pulp and board mill
2002 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The potential to reduce energy demand in industrial applications is often substantiaL Since energy cost represents a considerable share of the value added in several categories of process industries, a great potential exists for cutting costs through investment, for instance in energy efficiency improvements. However, industrial energy systems form complex relations not only within the industrial unit, but also in the interaction with their surroundings. Consequently, issues such as energy prices and governmental regulations influence the systems to varying extents. At the moment environmental issues, as manifested in the Kyoto agreement, and the new common European electricity market are in focus and are likely to influence the different boundary conditions that face European industries. Therefore, when major investments are to take place, changes in such boundary conditions need to be considered.

Analysing potential investments in industrial energy systems require advanced methods that manage these complex relations and interactions and concurrently consider technical, economic and environmental issues. The purpose of the thesis is to develop and co-ordinate such methods and apply them to investments in an existing process industry. A method based on optimisation is used as the main tool for analysis. Other methods are applied as complements, for example to manage different aggregation levels and to facilitate sensitivity analyses.

A pulp and board mill in central Sweden is used as a case study, where investments and changes in the utility systems and the main processes are analysed. These investments are subject to changes in boundary conditions and other mill-specific changes, showing both potentially interesting investments, and also the extensive influence of different boundary conditions. It is also shown that the methods used are appropriate for the purpose at hand.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2002. 96 p.
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 791
MIND, Industrial energy systems, Investment, pulp and paper
National Category
Engineering and Technology
urn:nbn:se:liu:diva-39957 (URN)51863 (Local ID)91-7373-476-4 (ISBN)51863 (Archive number)51863 (OAI)
Public defence
2002-12-11, Planck's hörsal, Fysikhuset, Linköpings Universitet, Linköping, 10:15 (Swedish)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2013-02-11

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