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Dynamic simulation and life cycle greenhouse gas impact assessment of CNG, LNG, and diesel-powered transit buses in British Columbia, Canada

机译:加拿大不列颠哥伦比亚省CNG,LNG和柴油动力过境巴士的动态仿真与生命周期温室气体影响评估

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摘要

In this study, a regional life-cycle assessment (LCA) framework is developed to assess compressed natural gas (CNG) and liquefied natural gas (LNG) as fuel alternatives to diesel for a transit bus in Victoria, British Columbia, Canada. The driving pattern and road gradient of a public transit bus route are considered in both directions to capture real-world driving behavior. The real-time fuel consumption and emissions of the transit bus configurations are calculated by dynamic vehicle simulation using Simcenter Amesim software. By considering the effect of road gradient, a 12% difference in computed fuel consumption is shown for bus travel in the two opposing directions of the bus line. The results also reveal that the majority of life cycle greenhouse gas (GHG) emissions are associated with on-board emissions. Overall, switching from diesel to CNG or LNG reduces GHG emissions by 4.8% and 8.1%, respectively.
机译:在本研究中,开发了一个区域生命周期评估(LCA)框架,以评估压缩的天然气(CNG)和液化天然气(LCIED天然气(LC)作为柴油的燃料替代品,在加拿大不列颠哥伦比亚省维多利亚州维多利亚州的过境巴士。 在两个方向上考虑了公共交通总线路线的驾驶模式和道路梯度以捕获现实世界的驾驶行为。 通过SimCenter Amesim软件的动态车辆仿真计算了运输总线配置的实时燃料消耗和排放。 通过考虑道路梯度的效果,在总线的两个相对方向上的总线行驶显示了计算的燃料消耗的12%差异。 结果还表明,大多数生命周期温室气体(GHG)排放与板载排放有关。 总的来说,从柴油切换到CNG或LNG分别减少了4.8%和8.1%的温室气体排放。

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