scholarly journals A work-based window method for calculating in-use brake-specific oxides of nitrogen emissions of heavy -duty diesel engines

2006 ◽  
Author(s):  
Benjamin C. Shade
Keyword(s):  
Diesel Engines ◽  
Oxides Of Nitrogen ◽  
Heavy Duty ◽  
Nitrogen Emissions ◽  
Window Method ◽  
Heavy Duty Diesel

Evaluation of the NOx emissions from heavy-duty diesel engines with the addition of cetane improvers

2009 ◽  
Vol 223 (8) ◽  
pp. 1049-1060 ◽  
Author(s):  
J Nuszkowski ◽  
R R Tincher ◽  
G J Thompson
Keyword(s):  
Diesel Engines ◽  
Test Procedure ◽  
Ambient Air ◽  
Oxides Of Nitrogen ◽  
Heavy Duty ◽  
Gas Density ◽  
Early Production ◽  
Heavy Duty Diesel ◽  
Environmental Agencies ◽  
Petroleum Fuels

The exhaust emissions from heavy-duty diesel engines (HDDEs) contribute to the degradation of ambient air quality; therefore, environmental agencies have created stringent emissions standards. Since the implementation of these standards, overall engine and fuel technology improvements have created a significant reduction in emissions. This study was completed in order to evaluate oxides of nitrogen (NO x) emissions from fuels with and without cetane-improving additives in recent and early production electronically controlled HDDEs. Five engines spanning the model years from 1991 to 2004 were tested using the Federal Test Procedure (FTP) dynamometer cycle with both petroleum-based diesel and B20 as the neat fuel. It was found that the additives had the most impact on reducing emissions at low engine powers, but the engine power range with an NO x benefit varied between engines. The cetane improvers were found only to reduce NO x below a cylinder gas density of 35kg/m3 at top dead centre. The lower compression ratio of the 1992 DDC S60 engines reduced the cylinder gas density and provided a larger optimal operating range for the cetane improvers. The cetane improvers reduced NO x at low engine powers and cylinder gas density for the B20 fuel but were less effective than for the neat petroleum fuels.

A Work-Based Window Method for Calculating In-Use Brake-Specific NOx Emissions of Heavy-Duty Diesel Engines

2008 ◽  
Vol 1 (1) ◽  
pp. 778-793 ◽  
Author(s):  
Benjamin C. Shade ◽  
Daniel K. Carder ◽  
Gregory J. Thompson ◽  
Mridul Gautam
Keyword(s):  
Diesel Engines ◽  
Nox Emissions ◽  
Heavy Duty ◽  
Window Method ◽  
Heavy Duty Diesel

scholarly journals Particulate emissions of heavy duty diesel engines measured from the tailpipe and the dilution tunnel

2021 ◽  
pp. 105799
Author(s):  
Sheng Su ◽  
Tao Lv ◽  
Yitu Lai ◽  
Jinsong Mu ◽  
Yunshan Ge ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Particulate Emissions ◽  
Heavy Duty ◽  
Heavy Duty Diesel

Development of Ceramic Coated Exhaust Manifolds for Heavy Duty Diesel Engines

1991 ◽  
Author(s):  
K. Itoh ◽  
K. Ohtsuka ◽  
T. Nagata ◽  
M. Nakamizo ◽  
K. Morikawa ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Heavy Duty ◽  
Heavy Duty Diesel
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