During their life cycle, buildings not only consume a lot of resources and energy, but also produce a large amount of carbon emissions, which have a serious impact on the environment. In the context of global emissions reduction, the trend has been to low carbon buildings. As a major carbon emitting country, it is urgent to promote emission reduction in the construction industry and to establish a model for carbon emissions and calculation in buildings. To this end, this paper collates life cycle carbon emission calculation methods based on life cycle theory and establishes a mixed life cycle carbon emission calculation model for buildings to provide ideas for low carbon buildings in China. A case study of a hospital in Guangming City, Anhui Province is also conducted to verify the feasibility of the model. The results show that the total carbon emission of the hospital is 43283.66 tCO 2 eq, with the production phase, construction phase, use and maintenance phase and end-of-life phase accounting for 9.13%, 0.35%, 90.06% and 0.46% of the total carbon emission respectively. An analysis of the factors influencing carbon emissions at each stage is presented, and recommendations are given for corresponding emission reduction measures. The carbon emission calculation model based on the hybrid LCA proposed in this study enables a more comprehensive consideration of carbon emissions in the life cycle of a building, and has implications for the study of building carbon emission calculation.
Acquaye, A. A., & Duffy, A. P. (2010). Input-Output Analysis of Irish Construction Sector Greenhouse Gas Emissions. Building and Environment, 45, 784-791. https://doi.org/10.1016/j.buildenv.2009.08.022
Atmaca, A., & Atmaca, N. (2015). Life Cycle Energy (LCEA) and Carbon Dioxide Emissions (LCCO2A) Assessment of Two Residential Buildings in Gaziantep, Turkey. Energy and Buildings, 102, 417-431. https://doi.org/10.1016/j.enbuild.2015.06.008
Chang, Y., Huang, Z. Y., Ries, R. J., & Masanet, E. (2016). The Embodied Air Pollutant Emissions and Water Footprints of Buildings in China: A Quantification Using Disaggregated Input-Output Life Cycle Inventory Model. Journal of Cleaner Production, 113, 274-284. https://doi.org/10.1016/j.jclepro.2015.11.014
Crawford, R. H. (2014). Post-Occupancy Life Cycle Energy Assessment of a Residential Building in Australia. Architectural Science Review, 57, 114-124. https://doi.org/10.1080/00038628.2013.819556
Dixit, M. K., Culp, C. H., & Fernández-Solís, J. L. (2013). System Boundary for Embodied Energy in Buildings: A Conceptual Model for Definition. Renewable and Sustainable Energy Reviews, 21, 153-164. https://doi.org/10.1016/j.rser.2012.12.037
Fenner, A. E., Kibert, C. J., Woo, J., Morque, S., Razkenari, M., Hakim, H., & Lu, X. S. (2018). The Carbon Footprint of Buildings: A Review of Methodologies and Applications. Renewable & Sustainable Energy Reviews, 94, 1142-1152. https://doi.org/10.1016/j.rser.2018.07.012
Filimonau, V., Rosa, M. S., Franca, L. S., Creus, A. C., Ribeiro, G. M., Molnarova, J., Safaei, A. (2021). Environmental and Carbon Footprint of Tourist Accommodation: A Comparative Study of Popular Hotel Categories in Brazil and Peru. Journal of Cleaner Production, 328, Article ID: 129561. https://doi.org/10.1016/j.jclepro.2021.129561
Han, Q., Chang, J., Liu, G., & Zhang, H. (2022). The Carbon Emission Assessment of a Building with Different Prefabrication Rates in the Construction Stage. International Journal of Environmental Research and Public Health, 19, Article No. 2366. https://doi.org/10.3390/ijerph19042366
Hong, J., Shen, G. Q., Feng, Y., Lau, W. S.-T., & Mao, C. (2015). Greenhouse Gas Emissions during the Construction Phase of a Building: A Case Study in China. Journal of Cleaner Production, 103, 249-259. https://doi.org/10.1016/j.jclepro.2014.11.023
Huang, L., Krigsvoll, G., Johansen, F., Liu, Y., & Zhang, X. (2018). Carbon Emission of Global Construction Sector. Renewable & Sustainable Energy Reviews, 81, 1906-1916. https://doi.org/10.1016/j.rser.2017.06.001
Islam, H., Jollands, M., & Setunge, S. (2015). Life Cycle Assessment and Life Cycle Cost Implication of Residential Buildings—A Review. Renewable & Sustainable Energy Reviews, 42, 129-140. https://doi.org/10.1016/j.rser.2014.10.006
Lave, L. B., Cobas-Flores, E., Hendrickson, C. T., & McMichael, F. C. (1995). Using Input-Output Analysis to Estimate Economy-Wide Discharges. Environmental Science & Technology, 29, 420A-426A. https://doi.org/10.1021/es00009a748
Li, H., Deng, Q., Zhang, J., Xia, B., & Skitmore, M. (2019). Assessing the Life Cycle CO2 Emissions of Reinforced Concrete Structures: Four Cases from China. Journal of Cleaner Production, 210, 1496-1506. https://doi.org/10.1016/j.jclepro.2018.11.102
Ma, J. J., Du, G., Zhang, Z. K., Wang, P. X., & Xie, B. C. (2017). Life Cycle Analysis of Energy Consumption and CO2 Emissions from a Typical Large Office Building in Tianjin, China. Building and Environment, 117, 36-48. https://doi.org/10.1016/j.buildenv.2017.03.005
Madathil, D., V, R. P., Nair, M. G., Jamasb, T., & Thakur, T. (2021). Consumer-Focused Solar-Grid Net Zero Energy Buildings: A Multi-Objective Weighted Sum Optimization and Application for India. Sustainable Production and Consumption, 27, 2101-2111. https://doi.org/10.1016/j.spc.2021.05.012
Majeau-Bettez, G., Strømman, A. H., & Hertwich, E. G. (2011). Evaluation of Process and Input-Output-Based Life Cycle Inventory Data with Regard to Truncation and Aggregation Issues. Environmental Science & Technology, 45, 10170-10177. https://doi.org/10.1021/es201308x
Nassen, J., Holmberg, J., Wadeskog, A., & Nyman, M. (2007). Direct and Indirect Energy Use and Carbon Emissions in the Production Phase of Buildings: An Input-Output Analysis. Energy, 32, 1593-1602. https://doi.org/10.1016/j.energy.2007.01.002
Onat, N. C., Kucukvar, M., & Tatari, O. (2014). Scope-Based Carbon Footprint Analysis of US Residential and Commercial Buildings: An Input-Output Hybrid Life Cycle Assessment Approach. Building and Environment, 72, 53-62. https://doi.org/10.1016/j.buildenv.2013.10.009
Ouyang, L. (2016). Research on the Management Process of Demolition Construction Waste Based on the Perspective of Carbon Emissions. Master’s Thesis, Shenzhen University.
Praseeda, K. I., Reddy, B. V. V., & Mani, M. (2015). Embodied Energy Assessment of Building Materials in India Using Process and Input-Output Analysis. Energy and Buildings, 86, 677-686. https://doi.org/10.1016/j.enbuild.2014.10.042
Säynäjoki, A., Heinonen, J., Junnila, S., & Horvath, A. (2017). Can Life-Cycle Assessment Produce Reliable Policy Guidelines in the Building Sector? Environmental Research Letters, 12, Article ID: 013001. https://doi.org/10.1088/1748-9326/aa54ee
Seo, S., & Foliente, G. (2021). Carbon Footprint Reduction through Residential Building Stock Retrofit: A Metro Melbourne Suburb Case Study. Energies, 14, Article No. 6550. https://doi.org/10.3390/en14206550
Su, B., Huang, H. C., Ang, B. W., & Zhou, P. (2010). Input-Output Analysis of CO2 Emissions Embodied in Trade: The Effects of Sector Aggregation. Energy Economics, 32, 166-175. https://doi.org/10.1016/j.eneco.2009.07.010
Suh, S., & Huppes, G. (2005). Methods for Life Cycle Inventory of a Product. Journal of Cleaner Production, 13, 687-697. https://doi.org/10.1016/j.jclepro.2003.04.001
Suh, S., Lenzen, M., Treloar, G. J., Hondo, H., Horvath, A., Huppes, G. et al. (2004). System Boundary Selection in Life-Cycle Inventories Using Hybrid Approaches. Environmental Science & Technology, 38, 657-664. https://doi.org/10.1021/es0263745
Tabrizikahou, A., & Nowotarski, P. (2021). Mitigating the Energy Consumption and the Carbon Emission in the Building Structures by Optimization of the Construction Processes. Energies, 14, Article No. 3287. https://doi.org/10.3390/en14113287
Technical Specification for Emission Reduction of Construction Waste (2011). China.
USEIA (U.S. Energy Information Administration) (2010). International Energy Outlook 2010.
Wang, C., & Zhang, Y. (2020). Realization Path and Policy System of Carbon Neutrality Vision. China Environmental Management, 12, 58-64.
Wang, J., Huang, Y., Teng, Y., Yu, B., Wang, J., Zhang, H., & Duan, H. (2021). Can Buildings Sector Achieve the Carbon Mitigation Ambitious Goal: Case Study for a Low-Carbon Demonstration City in China? Environmental Impact Assessment Review, 90, Article ID: 106633. https://doi.org/10.1016/j.eiar.2021.106633
Xi, C., & Cao, S.-J. (2022). Challenges and Future Development Paths of Low Carbon Building Design: A Review. Buildings, 12, Article No. 163. https://doi.org/10.3390/buildings12020163
Zhang, X., Xu, J., Zhang, X., & Li, Y. (2021). Life Cycle Carbon Emission Reduction Potential of a New Steel-Bamboo Composite Frame Structure for Residential Houses. Journal of Building Engineering, 39, Article ID: 102295. https://doi.org/10.1016/j.jobe.2021.102295
Zou, X. (2015). Urban Population Scale and Housing Quantity Growth Research. Modern Urban Research, No. 12, 17-23.