Improvement of Exhaust Gas Emission in Marine Diesel Engine by Blending DME

2007 ◽  
Author(s):  
Tomohisa Dan ◽  
Masataka Hashimoto ◽  
Ichiro Asano ◽  
Akira Kunikawa
Keyword(s):  
Diesel Engine ◽  
Marine Diesel Engine ◽  
Exhaust Gas ◽  
Gas Emission ◽  
Exhaust Gas Emission ◽  
Marine Diesel

scholarly journals Optimization design of marine seawater desulfurization technology

2022 ◽  
Vol 355 ◽  
pp. 02062
Author(s):  
Junfu Yuan ◽  
Meizhou Xu
Keyword(s):  
Diesel Engine ◽  
Sulfur Content ◽  
Flue Gas ◽  
Optimization Design ◽  
Flue Gas Desulfurization ◽  
Marine Diesel Engine ◽  
Exhaust Gas ◽  
Gas Emission ◽  
Exhaust Gas Emission ◽  
Marine Diesel

Because ships burn inferior fuel, the emission of ship exhaust gas has a great impact on the environment. In order to effectively deal with the increasingly strict limit of sulfur content and SO2 emission of ship fuel by the International Maritime Organization. On the basis of analyzing the characteristics of SO2 gas soluble in seawater, this paper studies and compares the current industrial seawater desulphurization technology and other flue gas desulfurization technologies, puts forward the feasibility of the application of seawater desulphurization technology in the exhaust gas emission of marine diesel engine, and theoretically designs and calculates seawater desulphurization technology is pointed out.

Maintaining Marine Diesel Emissions Using Performance Monitoring

2010 ◽  
Author(s):  
Herbert Roeser ◽  
Dilip Kalyankar
Keyword(s):  
Diesel Engine ◽  
Performance Monitoring ◽  
Fuel Oil ◽  
Exhaust Gas ◽  
Gas Emission ◽  
Heavy Fuel Oil ◽  
Tier Ii ◽  
Technological Advances ◽  
Exhaust Gas Emission ◽  
Marine Diesel

Ships are an integral part of modern commercial transport, leisure travel, and military system. A diesel engine was used for the first time for the propulsion of a ship sometime in the 1910s and has been the choice for propulsion and power generation, ever since. Since the first model used in ship propulsion, the diesel engine has come a long way with several technological advances. A diesel engine has a particularly high thermal efficiency. Added to it, the higher energy density of the diesel fuel compared to gasoline fuel makes it inherently, the most efficient internal combustion engine. The modern diesel engine also has a very unique ability to work with a variety of fuels like diesel, heavy fuel oil, biodiesel, vegetable oils, and several other crude oil distillates which is very important considering the shortage of petroleum fuels that we face today. In spite of being highly efficient and popular and in spite of all the technological advances, the issue of exhaust gas emissions has plagued a diesel engine. This issue has gained a lot of importance since 1990s when IMO, EU, and the EPA came up with the Tier I exhaust gas emission norms for the existing engine in order to reduce the NOx and SOx. Harsher Tier II and Tier III norms were later announced for newer engines. Diesel fuels commonly used in marine engines are a form of residual fuel, also know as Dregs or Heavy Fuel Oil and are essentially the by products of crude oil distillation process used to produce lighter petroleum fuels like marine distillate fuel and gasoline. They are cheaper than marine distillate fuels but are also high in nitrogen, sulfur and ash content. This greatly increases the NOx and SOx in the exhaust gas emission. Ship owners are trapped between the need to use residual fuels, due to cost of the large volume of fuel consumed, in order to keep the operation of their ships to a competitive level on one hand and on the other hand the need to satisfy the stringent pollution norms as established by the pollution control agencies worldwide. Newer marine diesel engines are being designed to meet the Tier II and Tier III norms wherever applicable but the existing diesel engine owners are still operating their engines with the danger of not meeting the applicable pollution norms worldwide. Here we make an effort to look at some of the measure that the existing marine diesel engine owners can take to reduce emissions and achieve at least levels prescribed in Tier I. Proper maintenance and upkeep of the engine components can be effectively used to reduce the exhaust gas emission. We introduced a pilot program on diesel engine performance monitoring in North America about two years ago and it has yielded quite satisfying results for several shipping companies and more and more ship owners are looking at the option of implementing this program on their ships.

scholarly journals Reduction of NOx and PM in marine diesel engine exhaust gas using microwave plasma

2015 ◽  
Vol 646 ◽  
pp. 012053 ◽  
Author(s):  
W Balachandran ◽  
P FInst ◽  
N Manivannan ◽  
R Beleca ◽  
M Abbod
Keyword(s):  
Diesel Engine ◽  
Microwave Plasma ◽  
Marine Diesel Engine ◽  
Exhaust Gas ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Marine Diesel ◽  
Reduction Of Nox
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