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Termisk energilagring
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap.
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap.
2018 (svensk)Independent thesis Basic level (university diploma), 10 poäng / 15 hpOppgave
Abstract [en]

Sweden is only utilizing half of the available excess heat. To utilize more of the excess heat a seasonal thermal energy storage could be implemented to store excessed heat from the summer when the demand is lower to the winter when the demand is higher. This can be achieved by an integration of a seasonal thermal energy storage to the district heating system. A seasonal thermal energy storage may also reduce the need of the system’s peak load, which often is economically costly and adversely affect the environment. The purpose of the paper is to investigate the possibility for Skövde Värmeverk to implement a seasonal thermal storage. The paper is performed by a literature collection and calculations are made by software programs. The result shows that it is technically possible to implement a pit thermal energy storage and a borhole thermal energy storage, but no outcome shows a profitability within 20 years. A pit thermal energy storage can replace the system’s peak load up to 79 percent and a borhole thermal energy storage up to 2,8 percent. The most suitable case for Skövde Värmeverk is to install a pit thermal energy storage with a storage capacity of 4 GWh.

sted, utgiver, år, opplag, sider
2018.
Emneord [en]
Seasonal thermal energy storage, pit thermal energy storage, borhole thermal energy storage, excess heat, peak load
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-36899OAI: oai:DiVA.org:hh-36899DiVA, id: diva2:1212771
Eksternt samarbeid
Skövde Värmeverk
Fag / kurs
Energy Technology
Utdanningsprogram
Energy Engineer - Renewable Energy, 180 credits
Tilgjengelig fra: 2018-06-07 Laget: 2018-06-03 Sist oppdatert: 2018-06-07bibliografisk kontrollert

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