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Simulation of an energy efficient single-family house in the area of Smedjebacken to meet Miljöbyggnad’s Gold House energy category requirements
Dalarna University, School of Technology and Business Studies, Energy Technology.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Since the building construction area is accounted for high share of energy usage (36 %) in

Europe, there is high demand to pay attention to this area accurately. Sweden which is one

of the pioneer countries in terms of building energy efficiency plans to reduce this value to

50 % by 2050. To reduce this value there is a need to define a mandatory guideline for

builders by the government. So national board of housing, building and planning (Boverket)

were given responsibility to define these regulations for builders and house owners. Parallel

with that Swedish green building council developed a certification considering the buildin

g’s

energy demand, indoor air climate and environmental impact of building called

Miljöbyggnad. While all the existing and new buildings following Boverket’s regulations

meet this certification’s lowest limitations, some ambitious

builders tend to fulfil its highest

level of limitations called Gold level.

This study aimed to design a house in the area of Smedjebacken to meet Miljö

byggnad’s

gold house’s energy category requirements. To meet the mentioned requirements several

parametric studies regarding insulation thickness, windows assembly, heating and ventilation

system are done via simulation software called TRNSYS. The result of testing several

models show that although windows assembly does not affect this building

’s energy demand

very much, other parameters such as insulation

’s thickness and type of heating system have

a key role.

In addition, a parametric study regarding the impact of thermal mass on the building energy

demand is performed. The result shows that the effect of removed massive wood is

compensated by replaced additional mineral wool insulation.

In conclusion it is concluded that a single family house located in a cold climate like

Smedjebacken using

district heating cannot meet Miljöbyggnad’s gold level criteria without

help of heat recovery ventilation. Furthermore, building with ground source heat pump as

its

heating system can meet Miljöbyggnad’s principals easier than those having district

heating. In this case building with 200 mm insulation thickness even with exhaust air

ventilation meets certification principals easily.

Place, publisher, year, edition, pages
2018.
Keywords [en]
TRNSYS, insulation thickness, ground source heat pump, district heating, heat recovery ventilation, Miljöbyggnad
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:du-28670OAI: oai:DiVA.org:du-28670DiVA, id: diva2:1254322
Available from: 2018-10-09 Created: 2018-10-09

Open Access in DiVA

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf