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Co-ordination of pinch technology and the MIND method: applied to a Swedish board mill
Department of Heat and Power Technology, Chalmers University of Technology, Göteborg, Sweden.
Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
Department of Heat and Power Technology, Chalmers University of Technology, Göteborg, Sweden.
Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
2002 (English)In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 22, no 2, 133-144 p.Article in journal (Refereed) Published
Abstract [en]

By combining the pinch technology and the MIND method, it is possible to identify beneficial and energy-efficient measures in a complex industrial energy system. By tackling a problem on the two different aggregation levels, the result is thoroughly evaluated and durable measures are achieved. The strength of the combination of methods is elucidated in a case study where a Scandinavian pulp and paper mill is analysed. The studied problem concerns pre-evaporation of effluents in a board mill using excess heat. Different alternatives are evaluated, taking into account economic, technical and practicable constraints. The results show that it is cost-effective to pre-evaporate the effluent using excess heat in the studied mill.

Place, publisher, year, edition, pages
2002. Vol. 22, no 2, 133-144 p.
Keyword [en]
Effluent, Energy, Energy efficiency, Evaporation, Excess heat, Industrial energy system, MIND, Optimisation, Pinch technology, Process integration, Pulp and paper
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-46976DOI: 10.1016/S1359-4311(01)00080-1OAI: oai:DiVA.org:liu-46976DiVA: diva2:267872
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13
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.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 791
Keyword
MIND, Industrial energy systems, Investment, pulp and paper
National Category
Engineering and Technology
Identifiers
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)
Opponent
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2013-02-11

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Karlsson, MagnusSöderström, Mats

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