Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases
Determining the optimal insulation thickness is useful for designing zero-emission buildings (ZEB) to minimize the environmental impacts. The energy required to heat buildings in cold climates is relatively high. Substantial reductions in the total energy usage of a building can be achieved by reduc...
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Online Access: | https://orbit.dtu.dk/en/publications/a7fdad89-267e-4683-813b-9431d5ebe1d0 https://doi.org/10.1016/j.buildenv.2023.110187 https://backend.orbit.dtu.dk/ws/files/325913059/1_s2.0_S0360132323002147_main.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/a7fdad89-267e-4683-813b-9431d5ebe1d0 2024-09-15T18:09:59+00:00 Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases Gaarder, Jørn Emil Friis, Naja Kastrup Larsen, Ingrid Sølverud Time, Berit Møller, Eva B. Kvande, Tore 2023 application/pdf https://orbit.dtu.dk/en/publications/a7fdad89-267e-4683-813b-9431d5ebe1d0 https://doi.org/10.1016/j.buildenv.2023.110187 https://backend.orbit.dtu.dk/ws/files/325913059/1_s2.0_S0360132323002147_main.pdf eng eng https://orbit.dtu.dk/en/publications/a7fdad89-267e-4683-813b-9431d5ebe1d0 info:eu-repo/semantics/openAccess Gaarder , J E , Friis , N K , Larsen , I S , Time , B , Møller , E B & Kvande , T 2023 , ' Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases ' , Building and Environment , vol. 234 , 110187 . https://doi.org/10.1016/j.buildenv.2023.110187 Building Climate change Embodied emissions Energy emission factor Energy use Operational emissions /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2023 ftdtupubl https://doi.org/10.1016/j.buildenv.2023.110187 2024-08-13T00:03:06Z Determining the optimal insulation thickness is useful for designing zero-emission buildings (ZEB) to minimize the environmental impacts. The energy required to heat buildings in cold climates is relatively high. Substantial reductions in the total energy usage of a building can be achieved by reducing the U-value of the external surfaces. Increasing the insulation thickness reduces the operational CO 2 emissions, although simultaneously increases the embodied CO 2 emissions from materials. To mitigate climate change, Norway and Denmark are trending towards stricter regulations to limit energy use in buildings. However, these countries have no current regulations in the building codes for limit embodied CO 2 emissions from materials. This study analyzes the influence of the energy emission factor and future climate change (scenarios?) on the optimal insulation thickness. We used three independent models for case studies in Greenland and Norway. The differences between the case studies highlight the influence of model parameter choices, such as indoor climate, energy emission factor and material emissions, whereas the similarities may be used to analyze the problem from a broader perspective. The results show that optimal insulation thickness calculations are most valuable for case studies in which the energy emission factor is low. Considering energy emission factors above 25–30 g CO 2 eq/kWh, operational emissions dominated the calculation results in all case studies. Article in Journal/Newspaper Greenland Technical University of Denmark: DTU Orbit Building and Environment 234 110187 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Building Climate change Embodied emissions Energy emission factor Energy use Operational emissions /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
Building Climate change Embodied emissions Energy emission factor Energy use Operational emissions /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Gaarder, Jørn Emil Friis, Naja Kastrup Larsen, Ingrid Sølverud Time, Berit Møller, Eva B. Kvande, Tore Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases |
topic_facet |
Building Climate change Embodied emissions Energy emission factor Energy use Operational emissions /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
Determining the optimal insulation thickness is useful for designing zero-emission buildings (ZEB) to minimize the environmental impacts. The energy required to heat buildings in cold climates is relatively high. Substantial reductions in the total energy usage of a building can be achieved by reducing the U-value of the external surfaces. Increasing the insulation thickness reduces the operational CO 2 emissions, although simultaneously increases the embodied CO 2 emissions from materials. To mitigate climate change, Norway and Denmark are trending towards stricter regulations to limit energy use in buildings. However, these countries have no current regulations in the building codes for limit embodied CO 2 emissions from materials. This study analyzes the influence of the energy emission factor and future climate change (scenarios?) on the optimal insulation thickness. We used three independent models for case studies in Greenland and Norway. The differences between the case studies highlight the influence of model parameter choices, such as indoor climate, energy emission factor and material emissions, whereas the similarities may be used to analyze the problem from a broader perspective. The results show that optimal insulation thickness calculations are most valuable for case studies in which the energy emission factor is low. Considering energy emission factors above 25–30 g CO 2 eq/kWh, operational emissions dominated the calculation results in all case studies. |
format |
Article in Journal/Newspaper |
author |
Gaarder, Jørn Emil Friis, Naja Kastrup Larsen, Ingrid Sølverud Time, Berit Møller, Eva B. Kvande, Tore |
author_facet |
Gaarder, Jørn Emil Friis, Naja Kastrup Larsen, Ingrid Sølverud Time, Berit Møller, Eva B. Kvande, Tore |
author_sort |
Gaarder, Jørn Emil |
title |
Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases |
title_short |
Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases |
title_full |
Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases |
title_fullStr |
Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases |
title_full_unstemmed |
Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases |
title_sort |
optimization of thermal insulation thickness pertaining to embodied and operational ghg emissions in cold climates – future and present cases |
publishDate |
2023 |
url |
https://orbit.dtu.dk/en/publications/a7fdad89-267e-4683-813b-9431d5ebe1d0 https://doi.org/10.1016/j.buildenv.2023.110187 https://backend.orbit.dtu.dk/ws/files/325913059/1_s2.0_S0360132323002147_main.pdf |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Gaarder , J E , Friis , N K , Larsen , I S , Time , B , Møller , E B & Kvande , T 2023 , ' Optimization of thermal insulation thickness pertaining to embodied and operational GHG emissions in cold climates – Future and present cases ' , Building and Environment , vol. 234 , 110187 . https://doi.org/10.1016/j.buildenv.2023.110187 |
op_relation |
https://orbit.dtu.dk/en/publications/a7fdad89-267e-4683-813b-9431d5ebe1d0 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.buildenv.2023.110187 |
container_title |
Building and Environment |
container_volume |
234 |
container_start_page |
110187 |
_version_ |
1810447583745671168 |