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Lagring av kyla i bergrum: Undersökning av ett nedlagt oljebergrum
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Global Energy Systems.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Global Energy Systems.
2012 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This thesis considers the use of an oldrock cavern as thermal energy storage.With a large system of differentchillers a model was created to find anappropriate future system. There aremainly two trajectories to take. Eitheran installation of chillers needs to bemade or the rock cavern can be used tomeet the future demand of districtcooling in Solna, Sweden. Additionallythis thesis investigates the possibleuse of different techniques to utilizethe phase change energy of water.Simulation shows that it’s possible toutilize the phase-change energy of afluid; however it’s not economicallyfeasible due to the thermodynamiceffects on the Carnot cycle. Further weconsider the possibility of using anexisting rock cavern, earlier used asstorage for heating oil. This indicatesthat a lot of uncertainty is connectedto the use of the rock cavern, mainlydue to the complications of installingequipment inside the cavern. We concludethat the option to use the rock cavernas district cooling is thermodynamicallysuitable, although a more thoroughinvestigation of different solutions toavoid large alterations to the inside ofthe old heating oil storage should bemade.

Place, publisher, year, edition, pages
2012.
Series
UPTEC ES, ISSN 1650-8300 ; 12025
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:uu:diva-180306OAI: oai:DiVA.org:uu-180306DiVA: diva2:549054
External cooperation
Norrenergi
Educational program
Master Programme in Energy Systems Engineering
Presentation
2012-06-14, 11:46 (Swedish)
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-09-03 Created: 2012-09-03 Last updated: 2012-09-03Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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