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dc.contributor.authorLundblad, Jonathan
dc.contributor.authorAndreassen, Nora
dc.contributor.authorOlsen, Johanna
dc.contributor.authorChaudhuri, Arnab
dc.date.accessioned2022-03-28T07:43:10Z
dc.date.available2022-03-28T07:43:10Z
dc.date.created2022-01-25T09:00:49Z
dc.date.issued2021
dc.identifier.isbn978-82-536-1728-2
dc.identifier.issn2387-4295
dc.identifier.urihttps://hdl.handle.net/11250/2987813
dc.description.abstractThe energy efficiency of new buildings in Norway has been steadily improved over the last decades, but with less heating, hydronic heating systems have adversely increased in price. Lessening electric power consumption in new buildings is an important part of the government’s plan to de-carbonize, in which hydronic heating is a suitable alternative for direct electric heating. In this regard, a developer claimed to have found a potential cost-efficient hydronic solution in terms of investment cost. This solution is based on two measures, using the Domestic Hot Water (DHW) circulation loop to cover both DHW demand as well as space heating demand in the building, and significantly reducing the number of heat emitters. In this work, we studied the possible benefits and the issues associated with this solution and performed an analysis based on the following accounts, i) the distribution system, ii) indoor climate, iii) energy demand/consumption, iv) hygienic security. A newly finished apartment complex located in central Oslo is chosen for this purpose. Two apartments and the central heating are examined by inspection, experimental measurements, and Computational Fluid Dynamics (CFD) simulations. The distribution system is examined to confirm the alleged cost efficiency with a simplified cost calculation based on the BIM-model and the documentation provided by the developers. We estimated an additional cost of 67 NOK per square meter in comparison to direct electrical heating. The end user could also financially benefit from using less expensive district heating. Using fan-coils as main heat emitter in each apartment was found to produce satisfactory indoor climate, however, in one apartment it was found that poor planning sabotaged its intended function which negatively affected indoor climate. Additionally, we found a lack of measures to protect the DHW from Legionella-growth, which is a violation of Norwegian building code TEK17.en_US
dc.language.isoengen_US
dc.publisherSINTEF Akademisk Forlagen_US
dc.relation.ispartofHealthy Buildings 2021 – Europe Proceedings of the 17th International Healthy Buildings Conference 21-23 June 2021
dc.relation.ispartofseriesSINTEF Proceedings;9
dc.relation.urihttps://hdl.handle.net/11250/2839073
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectPipe solutionsen_US
dc.subjectHeat distributionen_US
dc.subjectIndoor climateen_US
dc.subjectEnergy demanden_US
dc.subjectEnergy productionen_US
dc.subjectDomestic hot water circulationen_US
dc.titleEvaluation of a novel 3-pipe solution for hydronic heat distribution in passive-house standard apartment buildingsen_US
dc.typeConference objecten_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2021 The Authorsen_US
cristin.ispublishedtrue
cristin.fulltextoriginal
dc.identifier.cristin1989100
dc.source.issue9en_US
dc.source.pagenumber41-50en_US


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal