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Characterizing non-box trailer activity and aerodynamic devices for greenhouse gas emissions reductions

机译：用于针对温室气体排放减少的非盒式拖车活动和空气动力学装置

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摘要

Add-on aerodynamic devices (cab-roof fairings, side extenders, side skirts, boat-tails and others) for heavy-duty trailers and tractors provide the potential of fuel savings, cost savings, and the reduction of greenhouse gas (GHG) emissions. The goal of this work was to evaluate potential for aerodynamic devices to provide GHG emission reductions for four trailer types: flatbed, tanker, curtainside, and container chassis. This work included an analysis of a United States (U.S.) national trailer registration database with 253,191 total trailers and a trailer activity survey of 51 fleets. Flatbed, container chassis, and tanker trailers were relatively extensively used, with 48% and 64% of fleets indicating annual vehicle miles traveled (VMT) per trailer of greater than 50,000 and 25,000 miles, respectively. Annual savings based on a 50% and 100% market penetration for the registration database in the U.S. were estimated to be approximately 37.0 to 74.1 million gallons diesel, and $92.6 to $185.1 million in fuel (-U.S.$731 per tractor-trailer), and -0.38 to 0.76 million metric tons (MMT) CO2eq.
机译：用于重型拖车和拖拉机的附加空气动力学器件（驾驶室屋顶公平，侧架，侧裙，船尾等）提供燃料节省，成本节约和温室气体（GHG）排放的减少潜力。这项工作的目标是评估空气动力学设备的潜力，为四种拖车类型提供温室气体排放量：平板，油轮，窗帘和集装箱机箱。这项工作包括对美国（美国国家拖车登记数据库的分析，其中拖车253,191个拖车和51船队的拖车活动调查。平板，集装箱底盘和油轮拖车相对广泛地使用，48％和64％的车队分别表示每拖车的年度车辆数英里（VMT）分别大于50,000和25,000英里。根据美国注册数据库的50％和100％市场渗透的年度储蓄估计约为37.0至7410万加仑柴油，燃料92.6美元至1.851亿美元（ - 每拖拉机拖车731美元），以及 - 0.38至0.76亿公吨（MMT）CO2EQ。

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