High-Efficiency NOx and PM Exhaust Emission Control for Heavy-Duty On-Highway Diesel Engines - Part Two

2001 ◽  
Author(s):  
Charles Schenk ◽  
Joseph Mcdonald ◽  
Chris Laroo
Keyword(s):  
Diesel Engines ◽  
High Efficiency ◽  
Emission Control ◽  
Exhaust Emission ◽  
Heavy Duty

Development of Emission Control Systems to Enable High NOx Conversion on Heavy Duty Diesel Engines

2015 ◽  
Vol 8 (3) ◽  
pp. 1144-1151 ◽  
Author(s):  
Mojghan Naseri ◽  
Ceren Aydin ◽  
Shadab Mulla ◽  
Raymond Conway ◽  
Sougato Chatterjee
Keyword(s):  
Control Systems ◽  
Diesel Engines ◽  
Emission Control ◽  
Heavy Duty ◽  
Nox Conversion ◽  
Heavy Duty Diesel

Progress on Denitration and Desulfuration Technologies for Marine Diesel Engines

2015 ◽  
Vol 713-715 ◽  
pp. 51-56
Author(s):  
Ya Qiong Liu ◽  
Jia Zhen Du ◽  
Pi Qiang Tan ◽  
Ai Min Du
Keyword(s):  
Diesel Engines ◽  
Emission Control ◽  
Pollutant Emissions ◽  
Exhaust Emission ◽  
Formation Mechanisms ◽  
Emission Regulations ◽  
Marine Diesel ◽  
Practical Performance ◽  
Control Technologies ◽  
Future Technologies

Exhaust emission regulations issued by International Maritime Organization (IMO) for marine diesel engines are given and formation mechanisms for several pollutant emissions are introduced. Main denitration and desulfuration technologies for reducing NOx and SOx emissions are seperately summarized. In addition, working mechanism of different emission control technologies and their applications on marine diesel engines are introduced. These different emission control technologies are analyzed by evaluating conversion efficiency, economy and practical performance, and existed problems and future technologies are given. A Combination of different denitration and desulfuration technologies is a inevitable trend for emission reduction of marine diesel engines.

scholarly journals Computational study of the effect of different injection angle on heavy duty diesel engine combustion

2009 ◽  
Vol 13 (3) ◽  
pp. 9-21 ◽  
Author(s):  
Ali Ranjbar ◽  
Kurosh Sedighi ◽  
Mousa Farhadi ◽  
Mohsen Pourfallah
Keyword(s):  
Diesel Engine ◽  
Diesel Engines ◽  
Computational Study ◽  
Exhaust Emission ◽  
Cylinder Pressure ◽  
Heavy Duty ◽  
Injection Angle ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel ◽  
Injection Strategies

Diesel engines exhausting gaseous emission and particulate matter have long been regarded as one of the major air pollution sources, particularly in metropolitan areas, and have been a source of serious public concern for a long time. The choosing various injection strategies is not only motivated by cost reduction but is also one of the potentially effective techniques to reduce exhaust emission from diesel engines. The purpose of this study is to investigate the effect of different injection angles on a heavy duty diesel engine and emission characteristics. The varieties of injection angle were simulated and the emissions like soot and NO is calculated. The comparison between the different injection strategies was also investigated. A combustion chamber for three injection strategies (injection direction with angles of ?=67.5, 70, and 72.5 degree) was simulated. The comparative study involving rate of heat release, in-cylinder temperature, in-cylinder pressure, NO and soot emissions were also reported for different injection strategies. The case of ?=70 is optimum because in this manner the emissions are lower in almost most of crank angle than two other cases and the in-cylinder pressure, which is a representation of engine power, is higher than in the case of ?=67.5 and just a little lower than in the case of ?=72.5.

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