摘要: |
Simulations of U.S. trains on a number of different fuels have been limited
in specificity of route characteristics, in breadth of fuels analyzed, in general
transparency, and in comprehensiveness of the emissions analysis. Using
actual domestic train route characteristics combined with an advanced
single train simulator tool and a bottom-up approach, this study will
examine how effective a given fueling technology or technologies-for railmay be in reducing life cycle (i.e. both fuel cycle and fuel-related vehicle
cycle) GHG and pollutant emissions. A cost analysis will then examine the
likely costs of ownership to the equipment owners, based on key targets set
by government agencies, past cost trends, supply/demand impacts,
economies of scale, and incorporation of physical limits on fuel or
equipment production. Mid-term and longer term technology options will
be considered, general challenges to specific fuels will be discussed, and
fuel infrastructure requirements of the various options will be explored.
Results will be presented by region and other route characteristics, noting
any significant geographical variations in cost/emissions. Expected results
may lead to the recommendation of more than one fuel technology, taking
into account that the technology choices should be minimal and the
recommended technologies able to work in synergy and with minimal time
and cost impacts to the rail industry and to government. Analyzed fuels
include: diesel-electric with after treatment, natural gas (internal
combustion engine) with after treatment, hydrogen fuel cell, electricity via
catenary, biofuel (i.e. liquid FT), ammonia (internal combustion engine), and
hybridized diesel-electric and hydrogen powertrains. |