Main Title |
Phase 2 of the Advanced Collaborative Emissions Study. |
Author |
I. A. Khalek ;
M. G. Blanks ;
P. M. Merritt
|
CORP Author |
Southwest Research Inst., San Antonio, TX.; Coordinating Research Council, Inc., Alpharetta, GA.; Health Effects Inst., Boston, MA.; Environmental Protection Agency, Washington, DC.; California State Air Resources Board, Sacramento. |
Year Published |
2013 |
Report Number |
SWRI-03-17124 |
Stock Number |
PB2014-103456 |
Additional Subjects |
Emission control systems ;
Diesel engines ;
Air pollution control ;
Carbon dioxide ;
Diesel fuels ;
Exhaust gases ;
Nitrogen oxides ;
Test procedures ;
Advanced Collaborative Emissions Study(ACES) ;
Heavy duty diesel engine(HHDDE)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2014-103456 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
94p |
Abstract |
ACES Phase 2 demonstrates another large step in emissions reduction with 2010 EPA-compliant on-highway heavy heavy-duty diesel engines. The 2010-compliant engines showed substantially lower regulated emissions of NOX, CO, NMHC, and PM relative to the 2010 standard. They also showed a substantial reduction in a very wide spectrum of particle and gas phase unregulated emissions species relative to pre-2007 and 2007 technology engines. The observed reductions in PM (total mass, soot, and number) and unregulated emissions from 2007 to 2010 engines are likely due to differences in active DPF regeneration operation. The 2007 engines triggered multiple regeneration events during the 16-hour cycles, while the 2010 engines did not trigger any events. The improvement/reduction in regeneration was achieved through some combination of lower engine-out PM, increased passive regeneration and improved control strategies. PM emissions during regeneration events have been observed to be higher than normal operation for the 2007 engines used in ACES Phase 1. Unregulated emissions are believed to be higher during regeneration events. Thus, the results from the 2007 engines include emissions measured over both normal (no active regeneration) and regeneration operation, while the results from the 2010 engines only include emissions measured over normal operation. |
Supplementary Notes |
See also PB2009-112599, Phase 1. Sponsored by Coordinating Research Council, Inc., Alpharetta, GA., Health Effects Inst., Boston, MA., Environmental Protection Agency, Washington, DC. and California State Air Resources Board, Sacramento. |
Availability Notes |
Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. |
PUB Date Free Form |
Nov 2013 |
Category Codes |
68A; 81J; 97K |
NTIS Prices |
PC A06 |
Document Type |
NT |
Medium |
Final rept |
Cataloging Source |
NTIS/MT |
Control Number |
111201790 |
Origin |
NTIS |
Type |
CAT |