| Main Title |
Tech IV credit model : estimates for emission factors and inspection and maintenance credits for 1981 and later vehicles for MOBILE3 / |
| Author |
Brzezinski, David J. ;
Brzezinski, D. J.
|
| CORP Author |
Environmental Protection Agency, Ann Arbor, MI. Emission Control Technology Div. |
| Publisher |
U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Emission Control Technology Division, Technical Support Staff, |
| Year Published |
1985 |
| Report Number |
EPA AA-IMG-85-6 |
| Stock Number |
PB86-143872 |
| OCLC Number |
701511623 |
| Subjects |
Automobiles--Motors--Exhaust gas ;
Air--Pollution ;
Air quality management ;
Automobiles--Motors--Exhaust gas--Data processing ;
Air--Pollution--Computer programs ;
MOBILE3 (Computer program) ;
Motor vehicles--Pollution control devices
|
| Additional Subjects |
Inspection ;
Maintenance ;
Exhaust emissions ;
Mathematical models ;
Air pollution control ;
Hydrocarbons ;
Carbon monoxide ;
Nitrogen oxides ;
Fortran ;
Concentration(Composition) ;
Motor vehicles ;
Computer programs ;
Emission factors ;
Light duty vehicles ;
MOBILE 3 models
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELBD ARCHIVE |
EPA AA-IMG-85-6 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELCD |
EPA AA-IMG-85-6 |
|
NVFEL Library/Ann Arbor, MI |
02/15/2011 |
| NTIS |
PB86-143872 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
[i], 19 pages, [9] pages, appendices : charts ; 28 cm |
| Abstract |
The report provides the basis for the equations used in MOBILE3 to predict the emission levels of 1981 and newer gasoline powered light-duty passenger vehicles. This was done by characterizing the performance of vehicles in the Emission Factor data base separately for several technology types, such as fuel-injected versus carbureted, and recombining the technologies based on projected mixes to produce estimates of emissions of future model years. The Tech IV Credit Model is the computer software developed to calculate the MOBILE3 emission factor estimates. In addition, the model was used to estimate the emission reductions due to Inspection and Maintenance (I/M) programs for these vehicles. The emission levels of vehicles in the sample identified by various test type and cutpoint combinations were reduced to reflect repairs due to the I/M program. After combining the repaired and unrepaired vehicle emission levels, the overall reduction from the non-I/M base case is expressed as a fraction of the base case. This reduction fraction is scored in MOBILE3 and used to estimate fleetwide reductions due to I/M programs. |
| Notes |
"EPA AA-IMG-85-6." Cover title. "October 1985." Technical Report. Includes bibliographical references (page 19). |
| Place Published |
Ann Arbor, Mich. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Mobile Sources. Emission Control Technology Division. Technical Support Staff. |
| NTIS Title Notes |
Technical rept.. |
| PUB Date Free Form |
1985 |
| Category Codes |
13B; 68A |
| NTIS Prices |
PC A04/MF A01 |
| Primary Description |
200/05 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| Control Number |
607223030 |
| OCLC Time Stamp |
20190621065848 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02315cam 2200493Ka 45010 |
