【作者】

Steven Fritz，Bernhard Kunz，Werner Sonnleitner

【摘要】

论文已在中国上海举行的2013年CIMAC大会上发表，论文的版权归CIMAC所有。The Bombardier ALP-45DP ® is a single-cab, dual-mode (electric and diesel-electric) locomotive manufactured by Bombardier Transportation for the North American market. It is rated at 4.0 MW continuous power in catenary-electric mode and 3.0 MW in diesel-electric mode. In diesel-electric mode, power is provided by two 1.5 MW Caterpillar 3512C HD diesel engines. This paper describes the challenges and solutions in obtaining U.S. EPA Tier 3 locomotive certification for this new locomotive. There are several unique aspects of the Bombardier ALP45DP locomotive that required dialogue with EPA for the exhaust emissions certification process. These included an infinitely variable throttle in contrast to the North American convention of ’throttle notches,’ where discrete engine speed and load are predefined by the locomotive manufacturer, and hence selection of the exhaust emissions test modes is straightforward. Bombardier performed extensive analysis of the launch customer route (New Jersey Transit) to develop expected locomotive power requirements, and subsequently used this information to help define specific emissions test modes and associated duty-cycle weighting factors to be used for EPA emissions certification testing. The two 1.5 MW Caterpillar 3512C HD engines in the Bombardier ALP-45DP locomotive are each equipped with a diesel oxidation catalyst (DOC). This was relatively new for the North American locomotive market, and considerable effort was required to detail the DOC degreening requirements, and to provide sufficient technical basis for the deterioration factor (DF) required by EPA as part of the certification process. Exhaust emissions test results from U.S. EPA certification testing are included in the paper, including regulated emissions of HC, CO, NOx, and PM, as well results for new EPA requirements for reporting greenhouse gas emissions of CO2 and methane (CH4). Methane measurement and reporting is a new requirement by EPA for new locomotives starting in 2012, and these procedures are detailed in the paper

【会议名称】

第27届CIMAC会议

【会议地点】

上海

【下载次数】

1

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