Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics
There is currently an increasing trend in Europe to build passive houses. In order to reduce the cost of installation, an air-heating system may be an interesting alternative. Heat supplied through ventilation ducts located at the ceiling was studied with computational fluid dynamics technique. The...
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crsagepubl:10.1177/1420326x17753707 2024-09-09T19:23:16+00:00 Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics Risberg, Daniel Risberg, Mikael Westerlund, Lars 2018 http://dx.doi.org/10.1177/1420326x17753707 http://journals.sagepub.com/doi/pdf/10.1177/1420326X17753707 http://journals.sagepub.com/doi/full-xml/10.1177/1420326X17753707 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Indoor and Built Environment volume 28, issue 5, page 677-692 ISSN 1420-326X 1423-0070 journal-article 2018 crsagepubl https://doi.org/10.1177/1420326x17753707 2024-06-17T04:24:26Z There is currently an increasing trend in Europe to build passive houses. In order to reduce the cost of installation, an air-heating system may be an interesting alternative. Heat supplied through ventilation ducts located at the ceiling was studied with computational fluid dynamics technique. The purpose was to illustrate the thermal indoor climate of the building. To validate the performed simulations, measurements were carried out in several rooms of the building. Furthermore, this study investigated if a designed passive house located above the Arctic Circle could fulfil heat requirements for a Swedish passive house standard. Our results show a heat loss factor of 18.8 W/m 2 floor area and an annual specific energy use of 67.9 kWh/m 2 floor area, would fulfils the criteria. Validation of simulations through measurements shows good agreement with simulations if the thermal inertia of the building was considered. Calculation of heat losses from a building with a backward weighted moving average outdoor temperature produced correct prediction of the heat losses. To describe the indoor thermal climate correctly, the entire volume needs to be considered, not only one point, which normally is obtained with building simulation software. The supply airflow must carefully be considered to fulfil a good indoor climate. Article in Journal/Newspaper Arctic SAGE Publications Arctic Indoor and Built Environment 28 5 677 692 |
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SAGE Publications |
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English |
description |
There is currently an increasing trend in Europe to build passive houses. In order to reduce the cost of installation, an air-heating system may be an interesting alternative. Heat supplied through ventilation ducts located at the ceiling was studied with computational fluid dynamics technique. The purpose was to illustrate the thermal indoor climate of the building. To validate the performed simulations, measurements were carried out in several rooms of the building. Furthermore, this study investigated if a designed passive house located above the Arctic Circle could fulfil heat requirements for a Swedish passive house standard. Our results show a heat loss factor of 18.8 W/m 2 floor area and an annual specific energy use of 67.9 kWh/m 2 floor area, would fulfils the criteria. Validation of simulations through measurements shows good agreement with simulations if the thermal inertia of the building was considered. Calculation of heat losses from a building with a backward weighted moving average outdoor temperature produced correct prediction of the heat losses. To describe the indoor thermal climate correctly, the entire volume needs to be considered, not only one point, which normally is obtained with building simulation software. The supply airflow must carefully be considered to fulfil a good indoor climate. |
format |
Article in Journal/Newspaper |
author |
Risberg, Daniel Risberg, Mikael Westerlund, Lars |
spellingShingle |
Risberg, Daniel Risberg, Mikael Westerlund, Lars Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics |
author_facet |
Risberg, Daniel Risberg, Mikael Westerlund, Lars |
author_sort |
Risberg, Daniel |
title |
Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics |
title_short |
Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics |
title_full |
Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics |
title_fullStr |
Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics |
title_full_unstemmed |
Investigation of thermal indoor climate for a passive house in a sub-Arctic region using computational fluid dynamics |
title_sort |
investigation of thermal indoor climate for a passive house in a sub-arctic region using computational fluid dynamics |
publisher |
SAGE Publications |
publishDate |
2018 |
url |
http://dx.doi.org/10.1177/1420326x17753707 http://journals.sagepub.com/doi/pdf/10.1177/1420326X17753707 http://journals.sagepub.com/doi/full-xml/10.1177/1420326X17753707 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Indoor and Built Environment volume 28, issue 5, page 677-692 ISSN 1420-326X 1423-0070 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/1420326x17753707 |
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Indoor and Built Environment |
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28 |
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5 |
container_start_page |
677 |
op_container_end_page |
692 |
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1809763676541943808 |