Strategies for Meeting Phase 2 GHG and Ultra-Low NOx Emission Standards for Heavy-Duty Diesel Engines

2018 ◽  
Vol 11 (6) ◽  
pp. 1109-1122 ◽  
Author(s):  
Mufaddel Dahodwala ◽  
Satyum Joshi ◽  
Erik W. Koehler ◽  
Michael Franke ◽  
Dean Tomazic
Keyword(s):  
Diesel Engines ◽  
Nox Emission ◽  
Phase 2 ◽  
Heavy Duty ◽  
Emission Standards ◽  
Heavy Duty Diesel ◽  
Low Nox Emission

Internal EGR Systems for NOx Emission Reduction in Heavy-Duty Diesel Engines

2004 ◽  
Author(s):  
John Schwoerer ◽  
Sotir Dodi ◽  
Marty Fox ◽  
Shengqiang Huang ◽  
Zhou Yang
Keyword(s):  
Diesel Engines ◽  
Emission Reduction ◽  
Nox Emission ◽  
Heavy Duty ◽  
Heavy Duty Diesel

Ultra-Low NOx Emission Prediction for Heavy Duty Diesel Applications Using a Map-Based Approach

2019 ◽  
Author(s):  
Navtej Singh ◽  
Brad Adelman ◽  
Srinivasulu Malagari ◽  
Kyle Hickey
Keyword(s):  
Nox Emission ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Low Nox Emission

Strategies to Meet Worldwide Heavy-Duty Diesel Emission Standards

1992 ◽  
Vol 206 (3) ◽  
pp. 161-171 ◽  
Author(s):  
W Cartellieri ◽  
W Kriegler ◽  
F Schweinzer
Keyword(s):  
United States ◽  
Diesel Engines ◽  
The United States ◽  
Exhaust Emission ◽  
Heavy Duty ◽  
Test Procedures ◽  
Emission Standards ◽  
Diesel Oxidation Catalysts ◽  
Heavy Duty Diesel ◽  
State Cycles

The most severe exhaust emission standards for heavy-duty diesel engines will be introduced in the United States in 1994 and 1998 and standards of similar severence have been announced in Japan and in Europe. While in the United States emissions have to be measured in a transient cycle, in both of the other two geographical areas, Europe and Japan, special steady state cycles have been adopted for certifying heavy-duty diesel engines. In the first part of the paper the main characteristics of the three test procedures are compared and those load-speed operating areas identified which most significantly contribute to cycle emissions. Of these, NOx and particulates are the most challenging components. Strategies to reduce them are outlined in later parts of the paper. Emphasis is placed primarily on technologies for in-cylinder emissions reduction, but exhaust gas aftertreatment by diesel oxidation catalysts is also addressed. The achievements of these technologies will be demonstrated by test results from heavy-duty diesel engines of the 1 to 2 litre/cylinder categories.

scholarly journals Experimental study on the effects of blending PODEn on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuwei Zhao ◽  
Cong Geng ◽  
Weibo E ◽  
Xiaoquan Li ◽  
Peiyuan Cheng ◽  
...  
Keyword(s):  
Heat Release ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Cetane Number ◽  
Emission Characteristics ◽  
Heavy Duty ◽  
High Oxygen Content ◽  
Emission Standards ◽  
Heavy Duty Diesel

AbstractTo study the influence of diesel fuel blended with polyoxymethylene dimethyl ethers (PODEn), a new alternative fuel with a high oxygen content and large cetane number, on the combustion characteristics, fuel economies, and emission characteristics of heavy-duty diesel engines that meet China VI emission standards, relevant tests were conducted on a supercharged intercooled high-pressure common-rail diesel engine. The PODEn were blended with diesel fuel at three different ratios (volume fractions of 10%, 20%, and 30%). The test results showed that the PODEn could optimize the combustion process of diesel engines that met the China VI emission standards, effectively improve the thermal efficiencies of diesel engines, and reduce the emissions of hydrocarbon (HC), carbon monoxide (CO), and soot. With an increase in the PODEn blending ratio, the peak values of the in-cylinder pressure, average in-cylinder temperature, and instantaneous heat release rate gradually decreased, and each peak progressively moved forward. As the start of combustion gradually moved forward, the combustion duration was shortened by 0.7–2.8°CA, the heat release process became more concentrated, and the effective thermal efficiency was increased by up to 2.57%. The effective fuel consumption gradually increased, yet the equivalent effective fuel consumption gradually decreased, with the largest drop being as high as 4.55%. The nitrogen oxides (NOx) emission increased slightly, and the emissions of HC, CO, and soot gradually decreased. The emissions of CO and soot declined significantly under high-speed and high-load conditions, with the highest reductions reaching 66.2% and 76.3%, respectively.

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

Meeting the US 2007 Heavy-Duty Diesel Emission Standards - Designing for the Customer

2007 ◽  
Author(s):  
Thomas A. Dollmeyer ◽  
David A. Vittorio ◽  
Thomas A. Grana ◽  
James R. Katzenmeyer ◽  
Stephen J. Charlton ◽  
...  
Keyword(s):  
Heavy Duty ◽  
Emission Standards ◽  
The Us ◽  
Diesel Emission ◽  
Heavy Duty Diesel

Can Euro V heavy-duty diesel engines, diesel hybrid and alternative fuel technologies mitigate NO X emissions? New evidence from on-road tests of buses in China

2014 ◽  
Vol 132 ◽  
pp. 118-126 ◽  
Author(s):  
Shaojun Zhang ◽  
Ye Wu ◽  
Jingnan Hu ◽  
Ruikun Huang ◽  
Yu Zhou ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Alternative Fuel ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
New Evidence
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