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Case Study - Propane School Bus Fleets.
| 题名： | Case Study - Propane School Bus Fleets. |
| 作者： | Laughlin, M.; Burnham, A. |
| 关键词： | Dallas County Schools, Northside Independent School District, Recovery Act, Texas (state), Liquefied petroleum gas (LPG), Virginia (State), Greenhouse gas (GHG), Case study, Ysleta Independent School District, School bus accident, Propane, Petroleum, Environmental issues, Economic issues, Transportation, Heavy-duty vehicles, U.S. Department of Energy (DOE), Alternative Fuel Life-Cycle Environmental and Economic Transportation (AFLEET) |
| 摘要： | As part of the U.S. Department of Energy’s (DOE’s) effort to deploy transportation technologies that reduce U.S. dependence on imported petroleum, this study examines five school districts, one in Virginia and four in Texas, successful use of propane school buses. These school districts used school buses equipped with the newly developed liquid propane injection system that improves vehicle performance. Some of the school districts in this study saved nearly 50% on a cost per mile basis for fuel and maintenance relative to diesel. Using Argonne National Laboratory’s Alternative Fuel Life-Cycle Environmental and Economic Transportation (AFLEET) Tool developed for the DOE’s Clean Cities program to help Clean Cities stakeholders estimate petroleum use, greenhouse gas (GHG) emissions, air pollutant emissions and cost of ownership of light-duty and heavy-duty vehicles, the results showed payback period ranges from 3—8 years, recouping the incremental cost of the vehicles and infrastructure. Overall, fuel economy for these propane vehicles is close to that of displaced diesel vehicles, on an energy-equivalent basis. In addition, the 110 propane buses examined demonstrated petroleum displacement, 212,000 diesel gallon equivalents per year, and GHG benefits of 770 tons per year. |
| 报告类型： | 科技报告 |
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