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Ventilation och energiutredning för villa i Makedonien
2000 (Swedish)Independent thesis Basic level (professional degree)Student thesis
Abstract [en]

This report describes the profitability by installing a system of mechanical supply and exhaust ventilation with heat exchanger versus a system without heat exchanger, in a private house where only natural ventilation is present also designing a ventilation system for a private house in Macedonia. In a private house there is small air changes where the air change rate criterion Is 0,35 l/s, m2, that is about 0,5 air changes per hour. In my opinion that is to low in summertime. But to create a good indoor climate 0,5 air change rate per hour probably is a compromise to passably manage both summer and winter conditions without getting expensive energy-costs. This lead to that 0,5-air change rate per hour is an air change rate that fits best in spring and fall. By running a heat recovery unit in a private house with a well working heat system you have great possibilities to a good indoor climate throughout the year with low energy-costs. The advantage with a recovery unit is that with help from a fan you have controlled supply- and exhaust air where you can utilise the heat from the exhaust air for preheating the supply air. This is not possible in a unit without heat recovery. The summertime in Macedonia can get very hot and increase chances that the air can get stationary in houses with only natural ventilation. Therefore one must open windows to get an air circulation. You do not have to do that if you have controlled supply- and exhaust air and you will get good indoor climate as well. Before you attend to do any changes to the ventilation-system in a private house you have to inspect how the ventilation works. Foremost you have to observe the connection between sealing and ventilation. According to The National Housing Board you shall proceed step by step with simple and cheap measures. In a private house with supply- and exhaust air ventilation the first step is to get hold of a service- and maintenance instructions. The prise of a heat exchanger is in this case about 1500 SEK. These expenses will be recovered within a one and a half years. This shows that it is worth installing controlled supply- and exhaust air unit with heat exchanger. The energy-saving costs for heating air will grow in time of perspective.

Place, publisher, year, edition, pages
2000. , 60 p.
Identifiers
URN: urn:nbn:se:kau:diva-54368Local ID: EMI-3OAI: oai:DiVA.org:kau-54368DiVA: diva2:1103083
Subject / course
Energy and Environmental Engineering, Bachelor of Science
Available from: 2017-05-30 Created: 2017-05-30

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Citation style
  • apa
  • harvard1
  • 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