Influence of Diesel Fuel Cetane Number And Aromatic Content On Engine Exhaust Emissions

1998 ◽  
Vol 37 (11) ◽  
Author(s):  
X. Li ◽  
O.L. Gulder
Keyword(s):  
Diesel Fuel ◽  
Cetane Number ◽  
Exhaust Emissions ◽  
Engine Exhaust ◽  
Aromatic Content

Exhaust Emissions From a 1,500 kW EMD 16-645-E Locomotive Diesel Engine Using Several Ultra-Low Sulfur Diesel Fuels

2005 ◽  
Author(s):  
Steven G. Fritz ◽  
John C. Hedrick ◽  
Brian E. Smith
Keyword(s):  
Diesel Fuel ◽  
Motor Vehicle ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Oxides Of Nitrogen ◽  
Test Procedures ◽  
Diesel Fuels ◽  
Ultra Low Sulfur Diesel ◽  
Aromatic Content ◽  
Low Sulfur

This paper documents results from an experimental study performed to determine the effects of several ultra-low sulfur diesel (ULSD) fuels (< 15 ppm S) on exhaust emissions from a 1,500 kW EMD 16-645-E, roots-blown, diesel locomotive engine. U.S. EPA-regulated emission levels of hydrocarbons (HC), carbon monoxide (CO), oxides of nitrogen (NOx), and particulate (PM) were measured using U.S. EPA locomotive test procedures while operating on four ULSD fuels, plus a fifth baseline fuel which was a commercially-available Federal on-highway diesel fuel (< 500 ppm). The four ULSD fuels were (1) a ULSD California motor vehicle diesel fuel (CARB fuel) with an aromatic content of less than 10 percent, (2) a ULSD “equivalent” California motor vehicle diesel fuel with an aromatic content of 24 percent, (3 and 4) two custom blended “2006 ULSD Federal” diesel fuels with relatively low Cetane Numbers and higher aromatic levels. This paper reports the changes observed in the regulated exhaust emission levels between the ULSD CARB diesel fuels and the ULSD Federal diesel fuels.

Exhaust Emission Characteristics of a Three-Wheeler Auto Diesel Engine Fueled with Pongamia, Mahua and Jatropha Biodiesels

2019 ◽  
Vol 13 ◽  
Author(s):  
Bobbili Prasadarao ◽  
Aditya Kolakoti ◽  
Pudi Sekhar
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Diesel Fuel ◽  
Edible Oils ◽  
Cetane Number ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
International Standards ◽  
Exhaust Emission ◽  
Emission Characteristics

: This paper presents the production of biodiesel from three different non edible oils of Pongamia, Mahua and Jatropha as an alternative fuel for diesel engine. Biodiesel is produced by followed transesterification process, using catalyst sodium hydroxide (NaOH) and methyl alcohol (CH3OH). A single cylinder four stroke three-wheeler auto diesel engine is used to evaluate the exhaust emission characteristics at a constant speed of 1500rpm with varying loads. Diesel as a reference fuel and cent percent of Pongamia Methyl Ester (PME), Mahua Methyl Ester (MME) and Jatropha Methyl Ester (JME) are used as an alternative fuel. The physicochemical properties of biodiesels are within the limits of international standards (ASTM D6751) noticeably. The results of tested biodiesels offer low exhaust emissions compared to diesel fuel, owing to presence of molecular oxygen and high cetane number. At maximum load the NOx emission reduced by 18.41% for JME, 17.46% for MME and 7.61% for PME. Low levels of CO emissions are recorded for JME (66%) followed by MME (33%) and PME (22%). Unburnt hydrocarbon emissions were reduced by 85.75% for JME and MME, for PME 14.28% reduction is observed. Exhaust smoke emissions are also reduced for PME and MME by 18.84%, for JME 14.49%. As a conclusion, it is observed that all the methyl esters exhibit significant reduction in harmful exhaust emissions compared to diesel fuel and JME is noted as a better choice.

scholarly journals Exhaust Emissions and Physicochemical Properties of Hydrotreated Used Cooking Oils in Blends with Diesel Fuel

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Iraklis Zahos-Siagos ◽  
Dimitrios Karonis
Keyword(s):  
Diesel Fuel ◽  
Cetane Number ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Engine Operation ◽  
Diesel Fuels ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
Cooking Oils ◽  
Conventional Diesel Fuel

Hydroprocessing of liquid biomass is a promising technology for the production of “second generation” renewable fuels to be used in transportation. Its products, normal paraffins, can be further hydrotreated for isomerization in order to improve their cold flow properties. The final product, usually referred to as “paraffinic diesel,” is a high cetane number, clean burning biofuel which is rapidly gaining popularity among researchers and the industry. Nevertheless, the costly isomerization step can be omitted if normal paraffins are to be directly mixed with conventional diesel in low concentrations. In this work, nonisomerized paraffinic diesel produced through hydrotreating of used cooking oil (hydrotreated used cooking oil (HUCO)) has been used in 4 blends (up to 40% v/v) with conventional diesel fuel. The blends’ properties have been assessed comparatively to European EN 590 and EN 15940 standards (concerning conventional automotive diesel fuels and paraffinic diesel fuels from synthesis or hydrotreatment, resp.). Furthermore, the HUCO blends have been used in a standard stationary diesel engine-generator set. The blends have been considered as “drop-in replacements” for standard diesel fuel. As such, no engine modifications took place whatsoever. The engine performance and exhaust emissions of steady-state operation have been examined in comparison with engine operation with the baseline conventional diesel fuel.

scholarly journals The effect of fuel properties on exhaust emissions from diesel passenger car

2005 ◽  
Vol 120 (1) ◽  
pp. 19-30
Author(s):  
Miłosław KOZAK ◽  
Jerzy MERKISZ ◽  
Piotr BIELACZYC
Keyword(s):  
Diesel Fuel ◽  
Cetane Number ◽  
Exhaust Emissions ◽  
Fuel Properties ◽  
Experimental Results ◽  
Sulphur Content ◽  
Nox Emissions ◽  
Passenger Car

The effect of diesel fuel sulphur content and cetane number on regulated emissions was investigated in a Euro III diesel passenger car. Experimental results indicated that fuel sulphur level had a significant impact on all regulated emission, especially on PM. Testing fuels of different ignition qualities showed that HC and CO emissions of high cetane number fuels were significantly lower than emissions of a low cetane number fuel. We also observed a little decrease in NOx emissions with an increase in the cetane number.

STUDI PENENTUAN KOMPOSISI OPTIMUM CAMPURAN BAHAN BAKAR BIODIESEL–PETRODIESEL

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Soni S. Wirawan dkk
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Cetane Number ◽  
Price Policy ◽  
Oxides Of Nitrogen ◽  
Fuel Price ◽  
Biodiesel Blend

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

Sign in / Sign up

Export Citation Format

Share Document