Analysing the life cycle carbon performance of a Passivhaus-standard retrofitted suburban dwelling in Hunan, China

Liu, Chenfei, Sharples, Stephen and Mohammadpourkarbasi, Haniyeh 2022. Analysing the life cycle carbon performance of a Passivhaus-standard retrofitted suburban dwelling in Hunan, China. Presented at: 36th PLEA International Conference on Passive and Low Energy Architecture, Santiago de Chile, 22-25 November 2022. Books of Proceedings PLEA International Conference on Passive and Low Energy Architecture. , vol.1 pp. 600-605.

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Abstract

Against the background of climate change and resource exhaustion, sustainable retrofitting of existing residential buildings has been widely accepted as a vital way to lower global energy consumption and greenhouse gas emissions in the building sector. The Passivhaus EnerPHit retrofit is considered to have the potential to achieve a large percentage of energy saving compared to most existing buildings. However, research that focused on the environmental impact of the Passivhaus is still considered a small amount. This study aimed to carry out a deep life cycle carbon assessment based on a case building under the hot summer and cold winter climate region in China. The embodied carbon and transport carbon of each retrofitting measure was gathered using the carbon source from the One Click LCA database. The operational carbon of both the pre-retrofit case and retrofitted case for 30 years lifespan was simulated by DesignBuilder with current and future weather files. For the result, the life cycle carbon footprint of pre-retrofit and retrofitted cases showed a significant difference in the changing trend over the lifespan, and at the end, a carbon reduction of 83.4% was achieved in the retrofitted case which equalled to 4 tonnes of carbon saving per square meter of the floor area.

Item Type:	Conference or Workshop Item (Paper)
Status:	Published
Schools:	Architecture
ISBN:	978-956-14-3068-6
Related URLs:	Publisher
Last Modified:	20 Dec 2024 11:45
URI:	https://orca.cardiff.ac.uk/id/eprint/174423

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