Assessment of performance gap in embodied carbonanalysis of buildings – a case study
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- Tez No: 757438
- Danışmanlar: DR. YAİR SCHWARTZ, DR. SİMON HATHERLEY
- Tez Türü: Yüksek Lisans
- Konular: Mühendislik Bilimleri, Çevre Mühendisliği, Engineering Sciences, Environmental Engineering
- Anahtar Kelimeler: Embodied carbon, Carbon counting tools, Environmental performance gap, Life cycle assessment (LCA), Whole life cycle carbon footprint, Environmental impacts of buildings
- Yıl: 2021
- Dil: İngilizce
- Üniversite: University of London - University College London
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 33
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Özet (Çeviri)
Background: The CO2 emissions of buildings can be principally considered in two separate but interrelated components: operational carbon (OC) and embodied carbon (EC). Recent decades have seen a considerable focus on reducing the former whilst the latter has been mostly ignored. Despite the certain progress in OC mitigation, it was found that there is still a significant difference between the designed and measured performance of buildings, which refers to a performance gap. This suggests that EC may have a similar performance gap, or it perhaps has a much more significant contribution to the whole-life impacts of buildings than initially estimated. Therefore, the attention in the industry and academia has been recently shifted to EC assessment and mitigation strategies. However, there is no standardized methods or tools available for EC assessment and relevant research is still relatively new and rather limited. As a result, the extent of potential performance gaps if any is still unknown. This dissertation aims to address this gap using case study methodology. Method: This study analysed a mixed-use building as a case study. A comparative analysis was conducted between the EC figures of the following calculation approaches: a generic but widelyused EC data source the Inventory of Carbon and Energy (ICE) and detailed but less common Environmental Product Declarations (EPDs). The results of EC calculations were widely compared and interpreted to identify a range of sources for potential performance gaps in the EC of buildings. Main Findings: According to the EC data source used, the CO2 contribution of selected building materials and components to the overall EC of the building has made a significant difference, with a value up to 203%. The overall EC of the building were calculated in a range of 231-141 kgCO2e/m², with an average value of 175.1 kgCO2e/m² across the selected EC calculation approaches.
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