Life cycle emissions analysis of two nZEB concepts

Georges, Laurent; Haase, Matthias; Wiberg, Aoife Anne Marie Houlihan; Kristjansdottir, Torhildur; Risholt, Birgit Dagrun

doi:10.1080/09613218.2015.955755

Cited by 75 publications

(52 citation statements)

References 8 publications

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“…Although similar typology cases were assessed, dissimilarities in embodied and operational emissions were detected. For example, the ratio obtained for single-family houses in Iddon et al [65] was greater for Operational than for Embodied CO2, in contrast to Georges et al [66] and Houlihan et al [67], whose ratio was greater for Embodied than Operational CO2.…”

Section: Output Data and Communication Of Resultsmentioning

confidence: 78%

“…The use of generic databases has been verified in Georges et al [66] and Houlihan et al [67]. However, Shafiq et al [70] developed the LCI based on the applications of an extra regional database.…”

Section: Bim Model Inputmentioning

confidence: 99%

“…According to the reviewed papers, the detected methods for BIM-LCA in terms of data and software exchange are the following: the development of a template including environmental data about building materials [59], the development of a plug-in added to the BIM software and linked to LCA software [57], the integration of environmental data in Energy Demand calculation software linked to BIM [64], the combination of different tools using BIM tools for the quantification of building materials, environmental databases, and LCA tools (from basic to complete) [33,49,58,[65][66][67][68]70]. This review shows that the LCA calculation has been developed in half of the case studies by complete LCA tools.…”

Section: Interoperability and Data Exchangementioning

confidence: 99%

“…Cho[68] did not specify the level of development of the model, although Georges et al[66] and Houlihan et al[67] organized the data about building elements and components according to the Norwegian Standard NS 3451[69].Reviewed papers have assumed the complete building as the functional unit to develop the LCA, except Georges et al[51] and Houlihan et al[52] that considered 1m 2 of heated area. Concerning the building characteristics, most cases were based on building projects[33,[57][58][59]65,66] while just one case centered on an existing building[64]. Moreover, the building typologies assessed were office[57,66,68,70], residential[49,59,[65][66][67], school[33] and university[64].The lifespan was described in few cases.…”

mentioning

confidence: 99%

“…Concerning the building characteristics, most cases were based on building projects[33,[57][58][59]65,66] while just one case centered on an existing building[64]. Moreover, the building typologies assessed were office[57,66,68,70], residential[49,59,[65][66][67], school[33] and university[64].The lifespan was described in few cases. Only four cases have specified the lifespan considered to develop the LCA.…”

mentioning

confidence: 99%

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Critical review of bim-based LCA method to buildings

Soust-Verdaguer

Llatas

García-Martínez

2017

Energy and Buildings

370

164

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Current environmental problems arising from the building sector require tools to help reduce resource consumption and environmental impact. Life cycle assessment (LCA) is a widely used tool to quantify the environmental impacts of the building sector. The literature recognizes the need to simplify the method application, especially to reduce and optimize data acquisition. Building Information Modeling (BIM) is defined as a virtual 3D building model which integrates with a database of their building elements. Several studies recognize that the integration of BIM and LCA can simplify data acquisition of the building as well as provide both tools with feedback. This paper reviews recent studies centered on BIM-based LCA, and also carries out a methodological analysis of their integration, focusing on the way that BIM can contribute to simplifying data input, and optimize output data and results during the LCA application in buildings.The results show the viability to develop methods based on BIM models for organizing building information used to estimate environmental and energy consumption impacts based on LCA, including:templates and plug-ins for BIM software, and the integration of automated processes combining different data and software. Reviewed papers are simplified LCA applications, mostly focused on CO2 emission calculation during the early stages of design. Finally, methodological challenges and recommendations for BIM and LCA tools are proposed.

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Section: Output Data and Communication Of Resultsmentioning

confidence: 78%

Section: Bim Model Inputmentioning

confidence: 99%

Section: Interoperability and Data Exchangementioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Critical review of bim-based LCA method to buildings

Soust-Verdaguer

Llatas

García-Martínez

2017

Energy and Buildings

370

164

View full text Add to dashboard Cite

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Definition and Frameworks on a Life-Cycle Negative Growth Rate for Energy and Carbon in an Academic Campus

Tabatabaee

Weil

2017

Handbook of Theory and Practice of Sustainable Development in Higher Education

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Influence of technical and electrical equipment in life cycle assessments of buildings: case of a laboratory and research building

Hoxha

Maierhofer

Saade

et al. 2021

Int J Life Cycle Assess

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Purpose A detailed assessment of the environmental impacts of the building requires a substantial amount of data that is time- and effort-consuming. However, limitation of the system boundary to certain materials and components can provide misleading impact calculation. In order to calculate the error gap between detailed and simplified assessments, the purpose of this article is to present a detailed calculation of the environmental impacts of the building by including in the system boundary, the technical, and electrical equipment. Method To that end, the environmental impacts of a laboratory and research building situated in Graz-Austria are assessed following the EN-15978 norm. Within the system boundaries of the study, the material and components of building fabric, technical, and electronic equipment for the building lifecycle stages of production, construction, replacement, operational energy and water, and end-of-life are considered. The input data regarding the quantity of materials is collected from the design and tendering documents, invoices, and from discussion with the head of the building’s construction site. Primary energy and global warming potential indicators are calculated on the basis of a functional unit of 1 m2 of energy reference area (ERA) per year, considering a reference building service life of 50 years. Results and discussion The primary energy indicator of the building is equal to 1698 MJ/m2ERA/year. The embodied impacts are found to be responsible for 28% of which 6.4% is due to technical and electronic equipment. Furthermore, the embodied impacts for the global warming potential, equal to 28.3 kg CO2e/m2ERA/year, are responsible for 73%. Together, technical and electrical equipment are the largest responsible aspects, accounting for 38% of the total impacts. Simplified and detailed result comparisons show a gap of 29% and 7.7% for global warming and primary energy indicators. These differences were from the embodied impacts and largely from the exclusion of electrical equipment from the study’s system boundary. Conclusions Technical and electrical equipment present a significant contribution to the overall environmental impacts of the building. Worthy of inclusion in the system boundary of the study, the environmental impacts of technical and electrical equipment must be calculated in detail or considered with a reliable ratio in the early design phase of the project. Further research is necessary to address the detailed impact calculation of the equipment and notably the minimization of their impacts.

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Life cycle emissions analysis of two nZEB concepts

Cited by 75 publications

References 8 publications

Critical review of bim-based LCA method to buildings

Critical review of bim-based LCA method to buildings

Definition and Frameworks on a Life-Cycle Negative Growth Rate for Energy and Carbon in an Academic Campus

Influence of technical and electrical equipment in life cycle assessments of buildings: case of a laboratory and research building

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