摘要: |
CIMS decided not to replicate past work & attempted life cycle assessment (LCA) research to advance the state of knowledge and modeling rigor. To assess the life cycle cost and economic impacts of differentiating alternative fueled vehicles (hydrogen fuel cell, E85, hybrid-electric, hydrogen internal combustion engine, biodiesel, etc.) the project chose 3 critical life cycle variables: fuel production and distribution, fuel/vehicle use and vehicle production/ disposition. The project researched available models and tools. After a series of trade studies and comparisons of strengths/weaknesses, the project chose Argonne National Lab's Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) (v. 1.7 & 2.7) model for fuel cycle, vehicle cycle and vehicle use. The project also evaluated the Carnegie Mellon's Economic Input/Output Life Cycle Assessment (EIOLCA) model in combination with the GREET and synergy of the two benefited the high-level LCA and enabled analysis of environmental impact of automotive infrastructure. |