Evaluation of life cycle energy saving and emission reduction effects of hydrogen fuel cell heavy-duty vehicles
The life cycle energy consumption,greenhouse gas(GHG)and atmospheric pollutant emissions of five commonly used hydrogen production pathways were analyzed and compared in this study.On the above basis,combined with the current hydrogen supply structure and energy structure,the life cycle energy consumption,atmospheric pollutant emissions,and GHG emissions of hydrogen fuel cell heavy-duty vehicles(HHDV)in China were calculated.In addition,compared with those of diesel heavy-duty vehicles(DHDV),the effect of promoting HHDV to achieve energy saving and emission reduction was analyzed.The results showed that among five hydrogen production pathways,the total primary energy consumption and GHG emissions of grid electricity electrolysis were the highest,CO2 and CH4 emissions of renewable power electrolysis were the lowest,and the energy consumption and N2 O emission of methane catalytic reforming was the lowest.The life cycle energy consumption and GHG emissions of HHDV were 20.4 MJ/km and 1 492.7 g/km,respectively,which were 20.0％and 41.5％higher than those of DHDV,respectively.It indicated that HHDV could not achieve emission reduction and energy saving effects currently.The atmospheric pollutant emissions of HHDV were not always higher or lower than those of DHDV,depending on the types of pollutants.
万方数据
维普
