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Heavy-Duty Vehicle Chassis Dynamometer Testing for Emissions Inventory, Air Quality Modeling, Source Apportionment and Air Toxics Emissions Inventory. Final rept.
| 题名： | Heavy-Duty Vehicle Chassis Dynamometer Testing for Emissions Inventory, Air Quality Modeling, Source Apportionment and Air Toxics Emissions Inventory. Final rept. |
| 作者： | Gautam-M.; Clark-N.N. |
| 关键词： | *Exhaust-emissions; *Trucks-; *Dynamometers-; *Air-pollution; *Buses-.;Power-measurement; Engines-; Fuels-; Oils-; Vehicle-test-procedures; Quality-assurance; Carbon-dioxide-emissions; Carbonyls-; Polar-compounds; Absorption-; Speed-. |
| 摘要： | The primary objective of the E-55/E-59 Phase 1 program was to quantify regulated emissions and certain unregulated species from heavy heavy-duty diesel trucks, HHDDT, in the State of California. Heavy-duty diesel vehicles are known to be substantial contributors to the inventory of oxides of nitrogen (NOX) and particulate matter (PM), but the quantification of their real world emissions may be inaccurate if they are simply based on engine certification data. West Virginia University (WVU), with the Desert Research Institute (DRI) and the California Trucking Association as subcontractors, characterized the emissions from a total of 25 vehicles, all HHDDT. Vehicles were procured in the Los Angeles area, based on model years specified by the sponsors and by engine types determined from a survey. Emissions measurement was conducted using one of the WVU Transportable Heavy-Duty Vehicle Emissions Testing Laboratories. The laboratory employed a chassis dynamometer, with flywheels and eddy-current power absorbers, a full-scale dilution tunnel, heated probes and sample lines and research grade gas analyzers. PM was measured gravimetrically. Additional sampling ports on the dilution tunnel supplied dilute exhaust for capturing unregulated species and PM size fractions. This report presents the regulated and chemical emissions data from all 25 test vehicles. |
| 报告类型： | 科技报告 |
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