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Insulated Window Shutters in a Swedish Office Building
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

As a consequence of the increasing energy demand, the European Commission is making stricter regulations concerning energy use. In Sweden, a third of the energy is used by buildings and 60 % of that is used for heating, meaning that there is potential for saving energy in buildings by using it more efficiently. In this report, insulated window shutters are examined in order to see if they have any positive effect on the energy performance in a Swedish office building. The shutters are compared to a baseline scenario and a scenario where low-energy windows are used. Simulations of the different scenarios are carried out in IDA Indoor Climate and Energy where space heating, space cooling and electricity are studied. The simulations serve as a basis for an economic and environmental comparison.The results show the largest reduction in energy use and CO2 emissions by using insulated window shutters in the building, however, they are also the most expensive solution due to investment, installation and maintenance costs. The baseline scenario has the highest energy use but it is also the cheapest one. The shutters are the most cost effective solution to lower the energy use and the CO2 emissions compared to the levels in the baseline scenario.A recommendation for future work is to investigate how to manufacture, operate and implement the shutters in order to make a commercially available product, which includes experiments and case studies.

Abstract [sv]

På grund av det ökande energibehovet har den Europeiska kommissionen gjort striktare regleringar angående energianvändning. I Sverige går en tredjedel av energianvändningen till byggnader, varav 60 % går till uppvärmning. Detta gör att det finns potential för energibesparingar i byggnader genom att öka energieffektiviteten.I denna rapport undersöks isolerade fönsterluckor för att se om de kan öka energiprestandan på ett svenskt kontorshus. Luckorna jämförs med ett referensscenario och ett scenario där lågenergifönster används. Simuleringar utförs i programmet IDA Indoor Climate and Energy där värme, kyla och fastighetsel studeras. Dessa simuleringar utgör även en grund för en ekonomi- och miljöanalys.Resultatet visar att den största minskningen i energianvändning och koldioxidutsläpp fås av scenariot med isolerade fönsterluckor men det är också den dyraste lösningen på grund av investerings, drift och underhållskostnader. Referensscenariot har störst energianvändning men är också det billigaste. För att minska energianvändningen och koldioxidutsläppen från nivåerna i referensscenariot är fönsterluckorna det mest kostnadseffektiva alternativet.För framtida arbete rekommenderas att undersöka hur man ska tillverka, driva och implementera luckorna för att kunna göra en tillgänglig kommersiell produkt vilket inkluderar experiment och fältstudier.

Place, publisher, year, edition, pages
2016. , 45 p.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-189522OAI: oai:DiVA.org:kth-189522DiVA: diva2:946482
Supervisors
Examiners
Available from: 2016-07-05 Created: 2016-07-05 Last updated: 2016-07-05Bibliographically approved

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CiteExportLink to record
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Citation style
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