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Solar heated residential area Anneberg
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2000 (English)In: Proceedings Third ISES Europe Solar Congress: Eurosun 2000 / [ed] A.G. Elvang; S. Iversen, International Solar Energy Society, 2000Conference paper, Published paper (Refereed)
Abstract [en]

A solar heated area comprising 50 residential units is under construction. The system includes low-temperature space heating with seasonal ground storage of solar heat. Heating is supplied by 2 400 m{sup 2} of solar collectors and individual electrical heaters for supplementary heating. During the summer part of collected heat is stored in a borehole store with 100 boreholes drilled to 65 m depth. The groundwater-filled boreholes are fitted with double U-tubes. The average temperature of the seasonal store, about 60,000 m{sup 3} of crystalline rock, varies between 30 and 45 deg. C over the year. A floor heating system designed for a supply temperature of 32 deg. C provides space heating. The system is also equipped with buffer tanks for pre-heating of domestic hot water. The collectors will have favourable working conditions but the store is rather small and the estimated heat loss from the heat store is about 40% of collected solar heat. The average solar fraction is estimated to 70% and the resulting total heating cost is estimated to about 1 000 SEK/MWh ({approx}120{open_square}/MWh).

Place, publisher, year, edition, pages
International Solar Energy Society, 2000.
National Category
Water Engineering
Research subject
Water Resources Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-35879Local ID: a96e2aa0-b93b-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-35879DiVA, id: diva2:1009133
Conference
ISES Europe Solar Congress : 19/06/2000 - 22/06/2000
Note
Godkänd; 2000; 20070210 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Hellström, GöranNordell, Bo

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