The Proceedings of Manufacturing Systems Division Conference
Online ISSN : 2424-3108
[volume title in Japanese]
Session ID : 306
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A comparative LCCO2 emissions analysis of mass-produced ICEV, HEV, BEV and FCV with the use of HVAC system
*Keita ISHIZAKIMasaru NAKANO
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

This study systematically analyzed life cycle CO2 (LCCO2) emissions of a comprehensive set of mass-produced large sedan-type vehicles. ICEV (gasoline and diesel), HEV as well as BEV and FCV were investigated following current market trends. The results show that an annual average increment of CO2 emissions in use phase by HVAC system in Japan (assumed annual average 15 °C) is evenly 8 %. The CO2 emissions in use phase of BEV are higher than those of HEV and FCV (applied hydrogen produced by steam reforming of LPG (on-site)) due to current thermal power dominant electricity generation mix in Japan. As the consequence of high CO2 emissions from power supply and battery pack production, the LCCO2 emissions of BEV equipped with 75 kWh battery pack are equivalent to those of conventional ICEV (gasoline). By reducing the battery pack capacity to 20 kWh, the LCCO2 emissions of BEV become lower than those of ICEVs (gasoline and diesel) and FCV (on-site). In other words, it is difficult that BEV mitigates both LCCO2 emissions and driver's range anxiety. In conclusion, HEV shows the most competitive performance in terms of LCCO2 emissions reduction with sufficient driving range in Japan.

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© 2018 The Japan Society of Mechanical Engineers
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