Life Cycle Assessment of Nature-Based Design Solutions for Buildings and Building Retrofit
Notice bibliographique
Résumé
In the context of energy efficiency and nature-based design solutions for buildings, this manuscript-based thesis presents a comprehensive Life Cycle Assessment (LCA) framework, applied to practical case studies, that architects, designers, and engineers may consider when conducting the environmental impact assessment of a building or design strategy. \nManuscript #1 presents the LCA framework, relevant software tools, and a methodology to assess the potential carbon offset achievable by integrating tree planting areas around buildings. The net annual carbon sequestration rate of 0.575 kgCO2eq/m2 of tree cover area is considered in this part. Then, two real case study buildings are thoroughly examined and compared: one involving a recently constructed all-electric research laboratory at Concordia University, and the other focusing on a natural gas-heated single-detached house. For the all-electric laboratory, a garden fully covered with representative urban trees could offset around 17% of the life cycle carbon emissions. For the natural gas-heated single-detached house, the offset was around 3% of the total life cycle carbon emission. \nManuscript #2 expands the results from Manuscript #1, specifically focusing on the case study of the research laboratory at Concordia. This part demonstrates how to estimate and report the environmental benefits linked to wood products, biogenic carbon storage, and end-of-life treatment of materials under various scenarios. The results from this part indicate that the set of design solutions adopted on this case study can potentially offset building’s carbon footprint by 37.2% up to 83.9% when included in the LCA estimation, depending on the scenario considered. \nAfter discussing the two manuscripts, an additional chapter explores the application of LCA in the context of building/energy retrofit. This part demonstrates the connection between the local energy profile and the potential carbon offsets achieved through the retrofit process. We analyzed the case study of a Canadian school building to illustrate whether the reduction in GHG emissions from operational energy use savings can counterbalance the environmental impacts associated with manufacturing the new envelope materials and mechanical equipment added during retrofit. The findings underscore the significance of building/energy retrofit in places where the grid-electricity relies on fossil fuel, such as Nova Scotia, but opens a discussion about the extent of the benefits in locations where electricity is currently sourced from renewables. In places like Quebec, if the existent case study building already relied on electricity for space heating, the embodied emissions associated with new components might outweigh the operational emissions savings resulting from the retrofit.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,002 | 0,001 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».