A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example
Increased insulation reduces the energy needed during operations, but this may be less than the energy required for the extra insulation material. If so, there must be an optimal insulation thickness. This paper describes the development of a tool to determine the optimal insulation thickness, inclu...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/11250/3042154 |
id |
ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3042154 |
---|---|
record_format |
openpolar |
spelling |
ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3042154 2023-05-15T16:29:29+02:00 A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example Friis, Naja Kastrup Gaarder, Jørn Emil Møller, Eva Birgit 2022 application/pdf https://hdl.handle.net/11250/3042154 eng eng MDPI Norges forskningsråd: 237859 urn:issn:2075-5309 https://hdl.handle.net/11250/3042154 cristin:2045318 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY Buildings 12 Peer reviewed Journal article 2022 ftntnutrondheimi 2023-01-11T23:42:57Z Increased insulation reduces the energy needed during operations, but this may be less than the energy required for the extra insulation material. If so, there must be an optimal insulation thickness. This paper describes the development of a tool to determine the optimal insulation thickness, including what parameters are decisive, and presents some results along with a discussion of the success criteria and limitations. To make these considerations manageable for regular practitioners, only the transmission heat loss through walls is calculated. Although the tool is universal, Greenland is used as an example, because of its extreme climatic conditions. The tool includes climate change, 10 locations and 8 insulation materials. It focuses on greenhouse gas emissions, considers oil and district heating as heating sources, and evaluates four different climate change scenarios expressed in terms of heating degree days. The system is sensitive to insulation materials with high CO2 emissions and heating sources with high emission factors. This is also the case where climate change has the highest impact on the insulation thickness. Using the basic criterion, emitting a minimum of CO2-eq, the Insulation Thickness Optimizer (ITO), generally identifies higher insulation thicknesses as optimal than are currently seen in practice and in most building regulations. publishedVersion Article in Journal/Newspaper Greenland greenlandic NTNU Open Archive (Norwegian University of Science and Technology) Greenland |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Increased insulation reduces the energy needed during operations, but this may be less than the energy required for the extra insulation material. If so, there must be an optimal insulation thickness. This paper describes the development of a tool to determine the optimal insulation thickness, including what parameters are decisive, and presents some results along with a discussion of the success criteria and limitations. To make these considerations manageable for regular practitioners, only the transmission heat loss through walls is calculated. Although the tool is universal, Greenland is used as an example, because of its extreme climatic conditions. The tool includes climate change, 10 locations and 8 insulation materials. It focuses on greenhouse gas emissions, considers oil and district heating as heating sources, and evaluates four different climate change scenarios expressed in terms of heating degree days. The system is sensitive to insulation materials with high CO2 emissions and heating sources with high emission factors. This is also the case where climate change has the highest impact on the insulation thickness. Using the basic criterion, emitting a minimum of CO2-eq, the Insulation Thickness Optimizer (ITO), generally identifies higher insulation thicknesses as optimal than are currently seen in practice and in most building regulations. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Friis, Naja Kastrup Gaarder, Jørn Emil Møller, Eva Birgit |
spellingShingle |
Friis, Naja Kastrup Gaarder, Jørn Emil Møller, Eva Birgit A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example |
author_facet |
Friis, Naja Kastrup Gaarder, Jørn Emil Møller, Eva Birgit |
author_sort |
Friis, Naja Kastrup |
title |
A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example |
title_short |
A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example |
title_full |
A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example |
title_fullStr |
A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example |
title_full_unstemmed |
A Tool for Calculating the Building Insulation Thickness for Lowest CO2 Emissions—A Greenlandic Example |
title_sort |
tool for calculating the building insulation thickness for lowest co2 emissions—a greenlandic example |
publisher |
MDPI |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3042154 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland greenlandic |
genre_facet |
Greenland greenlandic |
op_source |
Buildings 12 |
op_relation |
Norges forskningsråd: 237859 urn:issn:2075-5309 https://hdl.handle.net/11250/3042154 cristin:2045318 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
_version_ |
1766019186909249536 |