Main Title |
Measurements of Polycyclic Aromatic Compounds in the Cylinder of an Operating Diesel Engine. |
Author |
Kittelson, D. B. ;
Du, C. J. ;
Zweidinger, R. B. ;
|
CORP Author |
Minnesota Univ., Minneapolis.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. |
Year Published |
1985 |
Report Number |
EPA-R-810287; EPA/600/D-85/012; |
Stock Number |
PB85-161263 |
Additional Subjects |
Aromatic polycyclic compounds ;
Exhaust emissions ;
Particles ;
Sampling ;
Air pollution ;
Experimental design ;
Design criteria ;
Chemical analysis ;
Concentration(Composition) ;
Diesel engine exhaust ;
Air pollution sampling ;
Air pollution detection ;
Procedures
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB85-161263 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
16p |
Abstract |
A unique system which allows sampling of the entire contents of one of the cylinders of a 5.7-liter V-8 indirect-injection diesel engine has been developed. An explosively actuated cutter ruptures a diaphragm in the combustion chamber and allows the contents of the cylinder to rush out and be subsequently diluted and quenched with cool nitrogen. Particles are collected with a high-volume impactor/filter system. This system has been used to collect a series of particle samples at crankangles ranging from 5 to 40 degrees after top dead center. Particle samples from the exhaust were also obtained. The samples have been extracted to determine the soluble organic fraction. These extracts have been analyzed for five polycyclic aromatic compounds: pyrene, fluoranthene, benz(a)pyrene, benz(k)fluoranthene, and 1-nitropyrene. The results indicate significant removal of the first four between the combustion chamber and the exhaust manifold. The 1-nitropyrene behaves differently, however, with higher concentrations in the exhaust samples than in the cylinder samples. This suggests that 1-nitropyrene is formed during the expansion stroke and/or in the exhaust manifold. |
PUB Date Free Form |
Jan 85 |
Category Codes |
13B; 7D; 68A; 99A |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
511622335 |
Origin |
NTIS |
Type |
CAT |