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Framework for parametric assessment of operational and embodied energy impacts utilising BIM

Alwan, Zaid; Nawarathna, Amalka; Ayman, Rana; Zhu, Mingyu; ElGhazi, Yomna

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Authors

Zaid Alwan

Amalka Nawarathna

Rana Ayman

Mingyu Zhu

Yomna ElGhazi



Abstract

In recent years advances in digital tools have been leading the way in the construction of cleaner, more energy-efficient buildings. Furthermore, improvements in Building Information Modelling (BIM) have resulted in various tools being used to assess building performance and overall Life Cycle Analysis (LCA). This work offers a unique insight into the development of a parametric LCA BIM tool, focusing on both operational and embodied energy perspectives through case study analysis of a commercial and a domestic building in the UK. A mixed research method was employed combining a literature review, qualitative and quantitative LCA case study analysis, and parametric modelling. The results indicate that embodied energy is much more critical in the early stages of the building's life, then is quickly overtaken by operational energy. In addition, many variations exist in energy outputs between domestic and commercial buildings. Operational energy takes a significant share in domestic buildings compared to commercial buildings. These variations are attributed to different design methods, construction materials, occupancy patterns and energy demands. The study proposes an LCA-BIM interactive user-led method of addressing energy hotspots for both operational and embodied elements, which can provide more instant identification of energy critical areas. Such an approach can offer real alternative BIM-based analysis tools during the design stages, compared to those currently being used, which focus mainly on either LCA of operational or embodied energy.

Citation

Alwan, Z., Nawarathna, A., Ayman, R., Zhu, M., & ElGhazi, Y. (2021). Framework for parametric assessment of operational and embodied energy impacts utilising BIM. Journal of Building Engineering, 42, Article 102768. https://doi.org/10.1016/j.jobe.2021.102768

Journal Article Type Article
Acceptance Date May 20, 2021
Online Publication Date May 30, 2021
Publication Date 2021-10
Deposit Date Jan 19, 2022
Publicly Available Date Mar 29, 2024
Journal Journal of Building Engineering
Electronic ISSN 2352-7102
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 42
Article Number 102768
DOI https://doi.org/10.1016/j.jobe.2021.102768
Keywords Mechanics of Materials; Safety, Risk, Reliability and Quality; Building and Construction; Architecture; Civil and Structural Engineering
Public URL https://uwe-repository.worktribe.com/output/8584402
Additional Information This article is maintained by: Elsevier; Article Title: Framework for parametric assessment of operational and embodied energy impacts utilising BIM; Journal Title: Journal of Building Engineering; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.jobe.2021.102768; Content Type: article; Copyright: © 2021 The Author(s). Published by Elsevier Ltd.

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