Main Title |
Prevention of Air Pollution from Ships: Diesel Engine Particulate Emission Reduction via Lube-Oil-Consumption Control. |
Author |
Miller, T. C. ;
Jackson, M. A. ;
Brown, A. J. ;
Wong, V. W. ;
|
CORP Author |
Coast Guard, Washington, DC. ;Department of the Navy, Washington, DC. ;Environmental Protection Agency, Washington, DC. |
Publisher |
2001 |
Year Published |
2001 |
Stock Number |
PB2002-101413 |
Additional Subjects |
Lubricating oils ;
Oil consumption ;
Diesel engine exhaust emissions ;
Air pollution ;
Marine engines ;
Single cyclinder engines ;
Particle air pollutants ;
Piston rings ;
Oil rings ;
Intake manifold pressure ;
Shapes ;
Tension ;
Ships ;
Boats ;
Coastal waters ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2002-101413 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
14p |
Abstract |
Strategies to alleviate particulate emissions from diesel engines on board vessels operating in coastal waters are being investigated. The approach is to determine the effectiveness of reducing engine lube-oil consumption as a means to reduce particulate pollutants. In this study, simultaneous lube-oil consumption and particulate emission data were collected on a single cylinder diesel engine for various speeds and loads using three piston-ring and intake-air pressure configurations. A sulfur dioxide-based measurement system was used to measure lube-oil consumption by tracking the sulfur from the lube-oil in the exhaust while using ultra-low sulfur diesel fuel. A scaled down version of a Constant Volume Sampling (CVS) system with a dilution tunnel was used to measure total particulate emission rate. Lube-oil contribution to particulate was determined using chromatography. The aggregate data show that an average of approximately 64% of the consumed lube-oil ends up as a significant portion of the total particulate. This percentage is lowest at the medium-load conditions at which moderately high exhaust temperatures and lean air-fuel ratios provide an environment suitable for the partial or complete oxidation of the consumed lube-oil. Significant reductions in particulate emission rate could be obtained by controlling engine lube-oil consumption. This can be effected by changes in piston-ring designs (tension and shape, for example) or by manipulating engine operating conditions, such as intake air-pressure, and possibly via other lubrication-system related variables. Replacement of piston rings with low-lube-oil-consumption designs, for example, could be an option with existing engines. |
Supplementary Notes |
Prepared in cooperation with Department of the Navy, Washington, DC. and Environmental Protection Agency, Washington, DC. |
Availability Notes |
Product reproduced from digital image. 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 5285 Port Royal Road, Springfield, VA, 22161, USA. |
Category Codes |
68A; 85A; 81J |
NTIS Prices |
PC A03/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
028400920 |
Origin |
NTIS |
Type |
CAT |