Characterisation of particulate matter and gaseous emissions from a large ship diesel engine

2009 ◽  
Vol 43 (16) ◽  
pp. 2632-2641 ◽  
Author(s):  
Jana Moldanová ◽  
Erik Fridell ◽  
Olga Popovicheva ◽  
Benjamin Demirdjian ◽  
Victoria Tishkova ◽  
...  
Author(s):  
David F. Merrion

Exhaust emissions from heavy-duty diesel engines have been legislated since the 1960’s and continue until 2010. Smoke emissions continue to be controlled but exhaust odor regulations were never promulgated. Gaseous emissions (oxides of nitrogen, carbon monoxide, hydrocarbons) were not regulated until 1973 and particulate matter first regulated in 1988. Emission regulations have been through several periods of cooperation between regulators and manufacturers but there have also been periods of conflict and lawsuits. The most recent issues are with the October 2002 requirements of the Consent Decrees signed by seven diesel engine manufacturers and USEPA/US DOJ/CARB. Also the 2007/2010 regulations are under review.


Fuel ◽  
2018 ◽  
Vol 232 ◽  
pp. 279-289 ◽  
Author(s):  
Zilong Li ◽  
Guibin Liu ◽  
Xianfeng Cui ◽  
Xingyu Sun ◽  
Shuai Li ◽  
...  

2000 ◽  
Vol 1 (1) ◽  
pp. 57-70 ◽  
Author(s):  
T Litzinger ◽  
M Stoner ◽  
H Hess ◽  
A Boehman

An experimental investigation was conducted to evaluate the effect of three different oxygenated compounds, diglyme, diethyl maleate and dibutyl maleate, on emissions from a Volkswagen 1.9 litre, turbocharged, direct injection diesel engine. Sampling was performed using a mini-dilution tunnel technique to obtain particulate matter and a Fourier transform infrared (FTIR) spectrometer for gaseous emissions. The particulate samples were analysed using thermal analysis and Soxhlet extraction to determine the fraction of volatile and soluble organic material respectively. All three oxygenated compounds were found to be effective at reducing particulate emissions, with the maleate compounds being more effective overall than the diglyme. Analysis of the relative contributions of changes in the soot and soluble organic fraction (SOF) to the reduction of particulate matter indicated that, for diethyl maleate and diglyme, reductions in soot were the dominant effect. No consistent trends in NOx emissions were observed, although the diethyl maleate, which was most effective at reducing the particulate matter, increased the NOx slightly at most of the test conditions. Differences in the combustion chemistry of the additives are discussed as a possible explanation of the greater effectiveness of the maleate compounds in reducing soot, as well as for the difference in the effectiveness of diethyl and dibutyl maleate.


ACS Omega ◽  
2021 ◽  
Author(s):  
Thawatchai Wongchang ◽  
Sak Sittichompoo ◽  
Kampanart Theinnoi ◽  
Boonlue Sawatmongkhon ◽  
Sumrerng Jugjai

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Soni S. Wirawan dkk

Biodiesel is a viable substitute for petroleum-based diesel fuel. Its advantages are improved lubricity, higher cetane number and cleaner emission. Biodiesel and its blends with petroleum-based diesel fuel can be used in diesel engines without any signifi cant modifi cations to the engines. Data from the numerous research reports and test programs showed that as the percent of biodiesel in blends increases, emission of hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM) all decrease, but the amount of oxides of nitrogen (NOx) and fuel consumption is tend to increase. The most signifi cant hurdle for broader commercialization of biodiesel is its cost. In current fuel price policy in Indonesia (especially fuel for transportation), the higher percent of biodiesel in blend will increase the price of blends fuel. The objective of this study is to assess the optimum blends of biodiesel with petroleum-based diesel fuel from the technically and economically consideration. The study result recommends that 20% biodiesel blend with 80% petroleum-based diesel fuel (B20) is the optimum blend for unmodifi ed diesel engine uses.Keywords: biodiesel, emission, optimum, blend


2020 ◽  
Vol 4 (1) ◽  
pp. 18
Author(s):  
Richard Viskup ◽  
Yana Vereshchaga ◽  
Anna Theresia Stadler ◽  
Theresa Roland ◽  
Christoph Wolf ◽  
...  

Pollutant emissions from vehicles form major sources of metallic nanoparticles entering the environment and surrounding atmosphere. In this research, we spectrochemically analyse the chemical composition of particle matter emissions from in-use diesel engine passenger vehicles. We extracted diesel particulate matter from the end part of the tail pipes of more than 70 different vehicles. In the laboratory, we used the high-resolution laser-induced breakdown spectroscopy (LIBS) spectrochemical analytical technique to sensitively analyse chemical elements in different DPM samples. We found that PM is composed of major, minor and trace chemical elements. The major compound in PM is not strictly carbon but also other adsorbed metallic nanoparticles such as iron, chromium, magnesium, zinc and calcium. Besides the major elements in DPM, there are also minor elements: silicon, nickel, titan, potassium, strontium, molybdenum and others. Additionally, in DPM are adsorbed atomic trace elements like barium, boron, cobalt, copper, phosphorus, manganese and platinum. All these chemical elements form the significant atomic composition of real PM from in-use diesel engine vehicles.


2007 ◽  
Author(s):  
Yuebin Wu ◽  
Nigel Clark ◽  
Daniel Carder ◽  
Gregory J. Thompson ◽  
Mridul Gautam ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document