Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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
Simulation of FtX ventilation technique in a typical Swedish house
University of Gävle, Faculty of Engineering and Sustainable Development.
2010 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This project discusses the effect of reducing the amount of fresh air supplied mechanically to a typical Swedish house, remaining constant the amount of air removed from the building. The new ventilation technique studied through this project is used by the so-called FtX ventilation systems, whose main difference comparing to FTX ones is that the supply airflow rate is reduced.

This reduction of the supply airflow rate is simulated by means of commercial software called IDA Indoor Climate and Energy, which provides the energy consumption in the dwelling so as the temperature in the building and the different airflows. Firstly, the model of the house is built in IDA taking into account the regulations established by the Swedish Building Code and the materials and size of a typical construction in Scandinavian region. The building is located in Bromma, near Stockholm. The reason to situate the building in this place is that IDA ́s database contains the meteorological data registered in this location during a whole year, so yearly simulations can be carried out using real meteorological data.

After simulating every model, results are gathered and compared. On the one hand, an energy study is carried out for a whole year in order to determine the optimal quotient between the supply airflow rate and the exhaust airflow rate which minimizes the energy consumption. This study indicates that when the supply airflow rate is 0.95 times the exhaust airflow rate, the energy consumed by the building is minimal. On the other hand, an economical study is done. To calculate the economical cost of the energy purchased by the building, the tariffs of a company which sells district heating and electricity in Stockholm are used. Considering these data and the energy consumption for the whole year, it is calculated the economical cost in each case. The optimal ventilation rate, in monetary terms, is (Qs/Qe) ≅0.9. In this case, the energy cost amounts to 13,880 SEK.

Place, publisher, year, edition, pages
2010. , p. 81
Keywords [en]
Ventilation, FtX
Identifiers
URN: urn:nbn:se:hig:diva-6936Archive number: TEX 100731OAI: oai:DiVA.org:hig-6936DiVA, id: diva2:325011
Presentation
2010-06-15, 11:320, 13:00 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2010-06-24 Created: 2010-06-17 Last updated: 2010-06-24Bibliographically approved

Open Access in DiVA

fulltext(1067 kB)286 downloads
File information
File name FULLTEXT01.pdfFile size 1067 kBChecksum SHA-512
279f07dc4703c30a75497e8e1a5c348af26f60ebf127d95fa1de162b77ee48a421621e5e3514684bd9634163429e06105b3050c951501247f3cf7d69631931d1
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Ferreras Pascual, Adrián
By organisation
Faculty of Engineering and Sustainable Development

Search outside of DiVA

GoogleGoogle Scholar
Total: 286 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 659 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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