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Heat Supply Comparison in a Single-Family House with Radiator and Floor Heating Systems
Mälardalen University, Sweden.ORCID iD: 0000-0001-9426-4792
Linnaeus University, Faculty of Technology, Department of Building Technology.ORCID iD: 0000-0002-5220-3454
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
2020 (English)In: Buildings, ISSN 2075-5309, E-ISSN 2075-5309, Vol. 10, no 1, p. 1-22, article id 5Article in journal (Refereed) Published
Abstract [en]

Floor heating and radiators are two of the most common types of hydronic heating systemsused for space heating in single-family houses in cold climate regions. Notwithstanding, there are fewcomparative studies on indoor temperature distribution and system cost evaluations for radiatorsand floor heating. Furthermore, there are no aligned outcomes in terms of total heat supply fora single-family house with radiators or floor heating. In this study, the eect of building energyeciency level and construction type, including flooring material, on the supply heating demand andtransmission heat losses were studied for both radiator and floor heating systems. For this purpose,a single-family house located in Växjö, Sweden, was modeled as a case study. The heating demandwas supplied with a district heating system with a similar supply temperature at 45 C for both theradiator and floor heating system. A sensitivity analysis was also performed to assess the eect offlooring configurations on the annual supply heating demand for both conventional and passiveversions of the case-study building. The results showed that the radiator-integrated building had alower supply heating demand in comparison with the floor heating-integrated buildings. Based onthe sensitivity studies, the flooring material did not have a significant influence on the supply heatingdemand and on the transmission heat losses in the case of the radiators. The supply heating demandwas only reduced up to 3% if the flooring U-value was improved by 60%. The results also showedthat refurbishment in a standard conventional building with a radiator heating system based on thepassive criteria led to a 58% annual energy savings, while this amount for a building with a floorheating system was approximately 49%.

Place, publisher, year, edition, pages
MDPI, 2020. Vol. 10, no 1, p. 1-22, article id 5
Keywords [en]
floor heating; radiator; built environment; energy efficiency; cold climate region
National Category
Other Civil Engineering
Research subject
Technology (byts ev till Engineering), Bioenergy Technology
Identifiers
URN: urn:nbn:se:lnu:diva-90708DOI: 10.3390/buildings10010005ISI: 000514573400008OAI: oai:DiVA.org:lnu-90708DiVA, id: diva2:1382804
Available from: 2020-01-06 Created: 2020-01-06 Last updated: 2020-03-12Bibliographically approved

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Vadiee, AmirDodoo, AmbroseJalilzadehazhari, Elaheh
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