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Efficient heat distribution in solar district heating systems
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).ORCID-id: 0000-0003-2885-0923
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).ORCID-id: 0000-0001-9069-0807
2018 (engelsk)Inngår i: SDH Solar District Heating: Proceeding, 2018, s. 63-66Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This paper contains a short analysis showing the main benefit for solar district heating when a novel heat distribution concept with low temperatures is applied. The analysis is performed by comparing the annual solar heat output from a solar collector field for current heat distribution temperatures in Sweden with the corresponding output for the novel heat distribution concept. The results show that the new low temperature concept provides 66% more solar heat for a typical solar collector. Hereby, the solar collector field can be reduced with 40%, giving a corresponding cost reduction for solar heat generated. Another result is that the cost gradient for lower costs from lower return temperatures is five times higher for solar district heating compared to current heat supply in Swedish district heating systems. One major conclusion is that high heat distribution temperatures in current European district heating systems are a major barrier for the competitiveness of solar district heating.

sted, utgiver, år, opplag, sider
2018. s. 63-66
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-36730OAI: oai:DiVA.org:hh-36730DiVA, id: diva2:1204231
Konferanse
5th International Solar District Heating Conference, Graz, Austria, April 11-12, 2018
Tilgjengelig fra: 2018-05-07 Laget: 2018-05-07 Sist oppdatert: 2018-06-12bibliografisk kontrollert

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