The Impact of Decisions Made in Various Architectural Design Stages on Life Cycle Assessment Results

2016 ◽  
Vol 861 ◽  
pp. 593-600 ◽  
Author(s):  
Benedek Kiss ◽  
Zsuzsa Szalay

Life Cycle Assessment (LCA) is an advantageous tool for the analysis of the overall environmental effects of a building. Most of the decisions that influence the final result of an LCA are made during the design process of the building. Therefore, LCA in early design stages is crucial, because the changes in this period of design are cheaper and more effective. However, there are many other aspects that influence the design of a building. During the design process a high number of variables have to be defined, and in each design stage a specific number of variables have to be fixed depending on various engineering considerations. In this paper we investigate the effect of decisions made in each design stage on LCA results. Within this paper the available possibilities are compared with the variant that was actually selected in each stage, and it is evaluated how environmental indicators evolve during the whole design process. The approach is demonstrated on a case study of a realized single family house.

Author(s):  
Rebekah Yang ◽  
Imad L. Al-Qadi ◽  
Hasan Ozer

The use of life-cycle assessment (LCA) to assess the environmental impacts of pavement systems has become more prevalent in recent years. When performing an LCA study, a series of methodological choices must be defined. As these decisions can change from study to study, it is important to understand the significance or insignificance of the methodological choices relevant to pavement LCA. This paper evaluated the sensitivity of five choices commonly made in pavement LCA; cut-off criteria, end-of-life (EOL) allocation, asphalt binder allocation, traffic growth, and type of energy reported. Eight case studies and four environmental indicators, that is, global warming potential, primary energy as fuel, total primary energy, and a unitless single score, were considered in the sensitivity analyses. Varying the cut-off criteria and asphalt binder allocation only had a significant impact on the environmental indicators when the use stage of the life-cycle is excluded and only the materials and construction, maintenance and rehabilitation, and EOL stages are considered. Using different EOL allocations, traffic growths, and types of energy reported had significant effects on the overall life-cycle results. Common methodological choices made in a pavement LCA are expected to have an impact on LCA results and subsequent interpretation, with the magnitude of the impact dependent on the scope of the analysis.


2013 ◽  
Vol 7 (4) ◽  
pp. 429-438 ◽  
Author(s):  
Weiqian Zhang ◽  
Shen Tan ◽  
Yizhong Lei ◽  
Shoubing Wang

2010 ◽  
Vol 34-35 ◽  
pp. 988-994 ◽  
Author(s):  
Sui Ran Yu ◽  
Rui Bin Zhang

This paper presents a life cycle assessment (LCA) method in different design process. This method can help product designers to make more environmental friendly design decisions in the design process. In this method, product’s LCA model is established in product conceptual design phase with the aid of decision matrix. Thereafter, the model is improved in the latter design phases, especially in product detail design phases. In this process, with the help of LCA software, designers can evaluate different design options and get LCA results when necessary to guide the design process. Finally, a case study of designing a coffee pot is provided in this paper to illustrate the efficiency and effectiveness of this method. The case study shows that the method performs very well in the design process. It can be used to help designers to make more environmental friendly design decisions.


2019 ◽  
Vol 667 ◽  
pp. 780-791 ◽  
Author(s):  
Thibaut Maury ◽  
Philippe Loubet ◽  
Mirko Trisolini ◽  
Aurélie Gallice ◽  
Guido Sonnemann ◽  
...  

2016 ◽  
Vol 8 (1) ◽  
pp. 21 ◽  
Author(s):  
Enrica Vesce ◽  
Germana Olivieri ◽  
Maria Beatrice Pairotti ◽  
Annalisa Romani ◽  
Riccardo Beltramo

Procedia CIRP ◽  
2018 ◽  
Vol 69 ◽  
pp. 160-165 ◽  
Author(s):  
Carolina Colli ◽  
Alain Bataille ◽  
Emmanuel Antczak ◽  
François Buyle-Bodin

2019 ◽  
Vol 11 (8) ◽  
pp. 2258 ◽  
Author(s):  
Franz Segovia ◽  
Pierre Blanchet ◽  
Ben Amor ◽  
Costel Barbuta ◽  
Robert Beauregard

The benefits of aluminum lamination in improving the physical and mechanical properties of wood-based composites is now well documented. This paper shows the contribution of life cycle assessment (LCA) as a tool to assess and compare the environmental footprint in the development of laminated panels. SimaPro 9.0 software, using Ecoinvent database was used to analyze the environmental impacts associated with the manufacturing of wood aluminum-laminated (WAL) panels and aluminum honeycomb panel (AHP). The impact 2002+ method was used to estimate environmental impacts. The LCA results show that the WAL panels manufacturing had a lower environmental impact than AHP manufacturing. In term of product, wood-based composites were the best choice as a core in laminated panel manufacturing. Wood-based composite manufacturing showed environmental advantages in all damage categories except in ecosystem quality. Aluminum alloy sheets manufacturing played an important role in the generation of environmental impacts for laminated panel development.


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