| Main Title |
Development of On-Road Emission Factors for Heavy-Duty Vehicles. |
| Author |
Harris, D. B. ;
King, F. G. ;
Brown, E. ;
|
| CORP Author |
Acurex Environmental Corp., Research Triangle Park, NC.;National Risk Management Research Lab., Research Triangle Park, NC. |
| Publisher |
1995 |
| Year Published |
1995 |
| Report Number |
EPA-68-04-0005; EPA/600/A-95/138; |
| Stock Number |
PB96-139019 |
| Additional Subjects |
Heavy duty vehicles ;
Emission factors ;
Diesel engines ;
Trucks ;
Mobile pollutant sources ;
Engine dynamometers ;
Chassis dynamometers ;
Acceleration ;
Velocity measurement ;
Road slope ;
Driving style effect on exhaust emissions ;
Weight ;
Vehicle air pollution ;
Mathematical models ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB96-139019 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
The paper discusses an EPA project the objectives of which are to: (1) define on-road emissions from heavy-duty diesel vehicles (HDDVs); (2) assess agreement between engine and chassis dynamometers and on-road emission factors; (3) evaluate current conversion factors for dynamometer data and develop appropriate ones if needed; and (4) develop a model emissions model. The experimental approach involves on-road tests that develop the model data necessary to model the emissions as a function of speed, load, grade, and acceleration. These data are fitted to routes representing trans-urban interstate travel, terminal entry/exit, and urban delivery. A final test sequence utilizes a certification cycle that has been adapted to suit actual truck operational capability to develop data for direct comparison with the dynamometer data. |
