An integrated environment and cost assessment method based on LCA and LCC for mechanical product manufacturing
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The purpose of this study is to provide an integrated method to identify the resource consumption, environmental emission, and economic cost for mechanical product manufacturing from economic and ecological dimensions and ultimately to provide theoretical and data support of energy conservation and emission reduction for mechanical product manufacturing.
The applied research methods include environmental life cycle assessment (LCA) and life cycle cost (LCC). In life cycle environmental assessment, the inventory data are referred from Chinese Life Cycle Database and midpoint approach and EDIP2003 and CML2001 models of life cycle impact assessment (LCIA) are selected. In life cycle cost assessment, three cost categories are considered. The proposed environment and cost assessment method is based on the theory of social willingness to pay for potential environmental impacts. With the WD615 Steyr engine as a case, life cycle environment and cost are analyzed and evaluated.
Results and discussion
The case study indicates that, in different life cycle phases, the trend of cost result is generally similar to the environmental impacts; the largest proportion of cost and environmental impact happened in the two phases of “material production” and “component manufacturing” and the smallest proportion in “material transport” and “product assembly.” The environmental impact category of Chinese resource depletion potential (CRDP) accounted for the largest proportion, followed by global warming potential (GWP) and photochemical ozone creation potential (POCP), whereas the impacts of eutrophication potential (EP) and acidification potential (AP) are the smallest. The life cycle “conventional cost” accounted for almost all the highest percentage in each phase (except “material transport” phase), which is more than 80% of the total cost. The “environmental cost” and “possible cost” in each phase are relatively close, and the proportion of which is far below the “conventional cost.”
The proposed method enhanced the conventional LCA. The case results indicate that, in a life cycle framework, the environment and cost analysis results could support each other, and focusing on the environment and cost analysis for mechanical product manufacturing will contribute to a more comprehensive eco-efficiency assessment. Further research on the life cycle can be extended to phases of “early design,” “product use,” and “final disposal.” Other LCIA models and endpoint indicators are advocated for this environmental assessment. Environmental cost can also be further investigated, and the relevant social willingness to pay for more environmental emissions is advocated to be increased.
KeywordsEnvironmental impact Life cycle assessment Life cycle cost Mechanical product Social willingness to pay
The authors would like to thank the editor and reviewers for their constructive suggestions of the paper.
Support was from Jinan Fuqiang power Co., LTD and the 2017 Liaoning Province Natural Science Fund Guidance Project (energy efficiency, emissions and environmental impact model research of equipment remanufacturing system, Grant No. 20170540080).
- BASF (2015) Homepage “eco-efficiency analysis”, available at: https://www.basf.com/en/company/sustainability/management-and-instruments/quantifying-sustainability/eco-efficiency-analysis.html
- China nonferrous metal industry yearbook (2006) Available at: http://www.shujuku.org/china-nonferrous-metals-industry-yearbook.html
- ISO 14044 international standard (2006) In: Environmental Management—life cycle assessment—requirements and guidelines. International Organization for Standardization, Geneva, SwitzerlandGoogle Scholar
- ISO 14045 international standard (2012) In: Environmental management—eco-efficiency assessment of product systems—principles, requirements and guidelines. International Organization for Standardization, Geneva, SwitzerlandGoogle Scholar
- Kjær LL, Pagoropoilos A, Hauschild M, Birked M, Schmidt JH, McAloone TC (2015) From LCC to LCA using a hybrid input output model-a maritime case study. Procedia CIRP 29:474–479Google Scholar
- Leng RB (2007) Study on product life cycle 3E+S assessment and methodology of decision analysis. Shanghai Jiaotong University, ShanghaiGoogle Scholar
- Li XD, Wu X, Zhang ZH (2005) Study on social WTP for environmental impacts based on the LCA theory. J Harbin Inst Tech 37(11):1507–1510Google Scholar
- Norris GA (2001) Integrating life cycle cost analysis and LCA. Int J Life Cycle Assess 6(2):118–120Google Scholar
- Uhlman BW, Saling P (2010) Measuring and communicating sustainability through eco-efficiency analysis. CEP December 2010, special expanded web-only version, American institute of chemical engineers, CEP magazine article, December 2010: 17–26Google Scholar
- UNEP/SETAC (2011) Life cycle initiative. Towards a life cycle sustainability assessment. Making informed choices on products. UNEP, ParisGoogle Scholar
- USGS Minerals Yearbook 2005 (2005) Volume III-China. Available at: https://minerals.usgs.gov/minerals/pubs/commodity/myb/
- Wenzel H, Hauschild MZ, Alting L (1997) Environmental assessment of products. In: COL. 1: Methodology, tools and case studies in product development. Chapman & Hall, LondonGoogle Scholar