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Passive solar options for reducing heating demand and maintain indoor climate in a multifamily house in Sweden
Högskolan Dalarna, Akademin Industri och samhälle, Energi och miljöteknik.
2014 (Engelska)Självständigt arbete på avancerad nivå (magisterexamen), 12 poäng / 18 hpStudentuppsats (Examensarbete)
Abstract [en]

This research was carried out by studying possible renovation of a two-storey detached multifamily building by using passive solar design options in a cold climate in Borlänge, Sweden where the heating Degree Days are 4451 (base 20°C). Borlänge`s housing company, Tunabyggen, plans to renovate the project house located inthe multicultural district, Jakobsgårdarna. The goal of the thesis was to suggest a redesign of the current building, decrease the heating energy use, by applying passive solar design and control strategies, in a most reasonable way. In addition ensure a better thermal comfort for the tenants in the dwellings. Literatures have been studied, from which can be inferred that passive design should be abasic design consideration for all housing constructions, because it has advantages to ensure thermal comfort, and reduce the energy use. In addition further savings can be achieved applying different types of control strategies, from which the house will be more personalized, and better adapted to the user’s needs.The proposed method is based on simulations by using TRNSYS software. First a proper building model was set up, which represents the current state of the project building. Then the thermal insulation and the windows were upgraded, based on today's building regulations. The developments of the passive solar options were accomplished in two steps. First of all the relevant basic passive design elements were considered, then those advantages were compared to the advantages of applying new conventional thermostat, and shading control strategies.The results show that there is significant potential with the different types of passive solar design; their usage depends primarily on the location of the site as well as the orientation of the project building. Applying the control strategies, such as thermostat, and shading control, along the thermal insulation upgrade, may lead to significant energy savings (around 40 %), by comparison to the reference building without any upgrade.

Ort, förlag, år, upplaga, sidor
2014. , s. 52
Nyckelord [en]
passive solar options, heating demand, indoor climate
Nationell ämneskategori
Annan naturresursteknik
Identifikatorer
URN: urn:nbn:se:du-13617OAI: oai:DiVA.org:du-13617DiVA, id: diva2:688124
Handledare
Examinatorer
Tillgänglig från: 2014-01-28 Skapad: 2014-01-15 Senast uppdaterad: 2014-01-28Bibliografiskt granskad

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