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Energikartläggning av avfallsförbränningen i Uppsala
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
2010 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesisAlternative title
Energy mapping of the waste incineration plant in Uppsala (English)
Abstract [en]

Vattenfall Heat Uppsala runs the waste incineration plant in Uppsala, which produces district heating, process steam, district cooling and electricity. Vattenfall Heat Uppsala has decided to introduce an energy management system with the aim to increase the energy efficiency of the plant. The basis in such a system is to make an energy mapping.

In this thesis an energy mapping has been performed at the waste incineration plant with the aim to identify and determine the size of energy flows. The investigated energy flows are used fuel, produced and used steam, produced district heating and cooling. Also the use of electricity to run the processes has been investigated. The results have also been used to look at the energy flows in the perspective of exergy to investigate how the quality of different energy forms are used in the processes.With the results of the energy mapping, potential for energy efficiency measures has been identified.

The results from the mapping shows that the use of electricity is low compared to similar plants and therefore any major actions to lower the use of electricity have not been found. Many internal processes use steam for different types of heating. The pressure of the used steam is often reduced by reducing valves, which causes a loss of exergy. Calculations show that theoretically about 30 GWh of electricity could be produced if the steam instead expands in turbines to reduce its pressure.

Place, publisher, year, edition, pages
2010. , p. 71
Series
UPTEC ES, ISSN 1650-8300 ; 10016
Keywords [sv]
energikartläggning, energieffektivisering, avfallsförbränning, exergi
Identifiers
URN: urn:nbn:se:uu:diva-126233OAI: oai:DiVA.org:uu-126233DiVA, id: diva2:322499
Uppsok
Technology
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Examiners
Available from: 2010-06-07 Created: 2010-06-07 Last updated: 2010-06-07Bibliographically approved

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CiteExportLink to record
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  • apa
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