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New Methodology of Life Cycle Assessment for Clean Energy Vehicle and New Car Model
Technical Paper
2011-01-0851
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Mazda announced that all customers who purchase Mazda cars are provided with the joy of driving and excellent environmental and safety performance under slogan of "Sustainable Zoom-Zoom" long-term vision for technology development.
The purpose of this study is to develop a new approach of Life Cycle Assessment (abbreviated to LCA) to be applied to clean energy vehicles and new car models. The improvement of both environmental performance, e.g., fuel consumption, exhaust emissions, vehicle weight reduction, and LCA that is a useful methodology to assess the environmental load of automobiles for their lifecycles has become more important.
LCA by inventory analysis, for RX-8 Hydrogen RE as a rotary engine vehicle used hydrogen as clean energy, was carried out and disclosed the world for the first time. LCA for new Mazda 5 was carried out as the portfolio of all models, previously only the specific model equipped with fuel efficiency device based on ISO14040. The majority of data on production of materials were taken from GaBi4 database. The data on production of parts and these assemblies were taken from in-house.
As a result, lifecycle environmental load of the RX-8 Hydrogen RE depends on production methods of hydrogen fuel. The RX-8 Hydrogen RE using by-product hydrogen of caustic soda with least environmental load was verified to reduce 57% of carbon dioxide (abbreviated to CO₂) compared with the one using gasoline fuel. The lifecycle environmental load of the new Mazda 5 depends on fuel efficiency and emission gas purification. The new Mazda 5 was verified to reduce 14% of CO₂ compared with the predecessor.
In this study, LCA of the RX-8 Hydrogen RE in the Japanese market and of the new Mazda 5 in the European market were carried out. Further studies for other markets are necessary as expansion of these delivered markets.
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Citation
Nitta, S. and Moriguchi, Y., "New Methodology of Life Cycle Assessment for Clean Energy Vehicle and New Car Model," SAE Technical Paper 2011-01-0851, 2011, https://doi.org/10.4271/2011-01-0851.Also In
References
- Life Cycle Assessment of Mazda 2010 Shigeki, Nitta Yoshihisa, Moriguchi Mazda technology review 2010 28 July 2010
- International Organization for Standard 2006 ISO14040&ISO14044
- The University of Stuttgart and PE International 2000 Gabi4: software and database for life cycle engineering
- Ministry of Economy, Trade and Industry, branch office of Chugoku area 2008 Report on manner of utilization of hydrogen infrastructure and functional materials by petroleum complex in Chugoku area 37
- New Energy and Industrial Technology Development Organization 2005 Research report on lifecycle impact assessment for the technology related with diffusion of fuel cell vehicle October 2005