1. A Comparison of Carbon Dioxide Emissions between Battery Electric Buses and Conventional Diesel Buses
- Author
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Zhiheng Li, Feng Mao, and Kai Zhang
- Subjects
Battery (electricity) ,Traffic efficiency ,020209 energy ,Geography, Planning and Development ,MathematicsofComputing_GENERAL ,power generation mix ,TJ807-830 ,modal-activity-based method ,02 engineering and technology ,Management, Monitoring, Policy and Law ,TD194-195 ,Renewable energy sources ,Automotive engineering ,Diesel fuel ,Road networks ,0502 economics and business ,0202 electrical engineering, electronic engineering, information engineering ,GE1-350 ,City scale ,050210 logistics & transportation ,the VT-Micro model ,Environmental effects of industries and plants ,Renewable Energy, Sustainability and the Environment ,business.industry ,battery electric buses ,05 social sciences ,Environmental sciences ,Electricity generation ,Low speed ,Environmental science ,Electricity ,business - Abstract
To prove the important role of battery electric buses (BEBs) in reducing carbon dioxide (CO2) emissions, we propose a framework to compare CO2 emissions between BEBs and conventional diesel buses (CDBs) based on low sampling frequency BEBs data at the city scale in Shenzhen. We applied the VT-Micro model to improve the estimation of CDBs’ CO2 emissions. A modal-activity-based method was implemented to reconstruct the second-by-second trajectories from the dataset as the input of the VT-Micro model. We updated the data of the Guangdong power generation mix to improve the estimation of BEBs’ CO2 emissions. The experiments showed that BEBs could reduce CO2 emissions by 18.0–23.9% in comparison with CDBs when the frequency of air-conditioning usage was low. In addition, BEBs tended to achieve more CO2 emission reduction benefits when the transit buses traveled at a low speed. Improving the traffic efficiency of road networks and promoting inter-provincial electricity trading are important to promote the adoption of BEBs.
- Published
- 2021
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