ABSTRACT
With the lack of energy and the aggravation of environmental hardship, road traffic as a major source of pollution emissions in the transport sector has attracted extensive attention from scholars, and new energy vehicles have been studied extensively as an effective means of addressing emissions. As heavy-duty vehicles are less used in daily life, there are not many studies on the new energy emissions of heavy-duty vehicles. This paper compares the carbon emission data of new energy heavy-duty vehicles based on different energy sources in the Greet model at different stages of their complete life cycle and finds that gaseous hydrogen and liquid natural gas energy sources have lower emissions overall, traditional fuel oil, and natural gas heavy-duty vehicles. New energy heavy-duty vehicles have little difference in pollution emissions and can continue to be used in daily life, while biomass fuels have higher emissions in the fuel transportation stage. Further research is needed on their origin and extraction methods.
