【作者】

Eric Dillen

【摘要】

该论文已在赫尔辛基举行的第28届CIMAC大会上发表，论文的版权归CIMAC所有。ABSTRACT The abundance of natural gas in North America has driven natural gas prices to a relatively low price with respect to diesel fuel. The expectation is that diesel fuel prices will continue to fluctuate and rise in the future while natural gas prices will remain stable. Due to the expected long term price differential between diesel fuel and natural gas, there is an interest by the North American railroads in being able to burn natural gas in their existing diesel locomotive fleets. This paper will detail the technical hurdles and development of two dual fuel locomotives that were used for demonstration purposes on a class 1 North American railroad. The development started in early 2012 with Single Cylinder Engine (SCE) testing at the GE research facility in Niskayuna, NY. The SCE testing included feasibility studies, in-cylinder studies to maximize gas substitution rates, and an initial knock detection investigation. The development then progressed to Multi-Cylinder Engine (MCE) testing where the demonstrator engine control system was developed, detailed engine performance mapping was performed, knock detection and mitigation strategy was developed, and various engine hardware configurations were tested. The SCE and MCE optimization techniques and results will be discussed. The two demonstrator locomotives were built in 2013 and went through validation testing at the GE Transportation locomotive production facility in Erie, PA before being shipped to a Class 1 North American railroad for in-use testing in the spring of 2014. The in-use testing included performance testing at TTCI in Pueblo, CO to validate that overall locomotive performance was not impacted by dual fuel operation. After that, high elevation testing was performed in southern Colorado to identify any altitude impact on performance and then cold weather testing was performed in Minnesota and Wisconsin in early 2015. Mainline testing was then carried out on the southern trans-con between Barstow, CA and Kansas City, MO for the remainder of 2015. Results and lessons learned will be presented.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

2

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