The Influence of Composition and Properties of Diesel Fuel on Particulate Emissions from Heavy-Duty Engines

Cowley, Leonie; Stradling, Richard; Doyon, J.

doi:10.4271/932732

Cited by 47 publications

(21 citation statements)

References 8 publications

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“…Many researchers have concluded that the cetane number influences both gaseous and particulate emissions, with higher cetane numbers giving lower emissions. Cowley et al (10) confirmed these observations and also investigated the influence of cetane number on particulate emissions. They found that an increase in cetane number did not generally lead to a reduction in light-duty vehicle particulate emissions.…”

Section: Resultsmentioning

confidence: 77%

Fuel properties of tallow and soybean oil esters

Ali

Hanna

Cuppett

1995

J Americ Oil Chem Soc

177

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Fuel properties of beef tallow, soybean oil, their esters, and blends with No. 2 diesel fuel and ethanol were determined. Fuel properties tested were viscosity, specific gravity, API gravity, distillation ranges, calculated cetane index, energy content, flash point, water content, sulfur content, carbon residue, particulate matter, acid value, copper-strip corrosion test, ash content, melting point, cloud point, and pour point. Gas-chromatographic analyses of tallow, soybean oil, and their esters were performed to determine their major constituents. Viscosities of soybean oil and tallow were significantly reduced by esterification. Other fuel properties of the esters and their blends with No. 2 diesel fuel and ethanol were similar to the properties of No. 2 diesel fuel. JAOCS 72, 1557JAOCS 72, -1564JAOCS 72, (1995.

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Section: Resultsmentioning

confidence: 77%

Fuel properties of tallow and soybean oil esters

Ali

Hanna

Cuppett

1995

J Americ Oil Chem Soc

177

View full text Add to dashboard Cite

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“…The PM mass in primary and secondary emissions from diesel was higher than B20 by an order of magnitude. Numerous studies in the literature have indicated similar trends Cowley et al, 1993;Den Ouden et al, 1994;Kalligeros et al, 2003;Lange, 1991). Oxygen content of B20 favors efficient fuel combustion resulting in the lower PM mass (Akasaka et al, 1997;American Biofuels Association, 1995;Owen & Coley, 1995).…”

Section: Physical Characterization Of Particulatesmentioning

confidence: 81%

Assessment of toxic potential of primary and secondary particulates/aerosols from biodiesel vis-à-vis mineral diesel fuelled engine

Agarwal

Gupta

Dixit

et al. 2013

Inhalation Toxicology

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Toxicity of engine out emissions from primary and secondary aerosols has been a major cause of concern for human health and environmental impact. This study aims to evaluate comparative toxicity of nanoparticles emitted from a modern common rail direct injection engine (CRDI) fuelled with biodiesel blend (B20) vis-à-vis mineral diesel. The toxicity and potential health hazards of exhaust particles were assessed using various parameters such as nanoparticle size and number distribution, surface area distribution, elemental and organic carbon content and polycyclic aromatic hydrocarbons adsorbed onto the particle surfaces, followed by toxic equivalent factor assessment. It was found that biodiesel particulate toxicity was considerably lower in comparison to mineral diesel.

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“…Furthermore, the sulfur to sulfate conversion rates of the blend and low sulfur diesel comprised the low end of the range (0.22% to 0.43%) while the ultra-low sulfur diesel made up the high end (0.52% to 1.94%). These values are suspect as previous studies have shown that the amount of fuel sulfur converted to PM is at least 1-2% of the fuel sulfur content irrespective of the total fuel sulfur level or engine type [39]. Despite this discrepancy, the relative trends observed in the data still hold considerable merit.…”

Section: Pm Constituent Distributionmentioning

confidence: 45%

“…of the fuel sulfur content irrespective of the total fuel sulfur level or engine type [39]. In addition to contributing to particulate emissions, fuel sulfur has also been linked to catalyst poisoning, limiting the use of exhaust aftertreatment systems with diesel engines.…”

Section: Sulfurmentioning

confidence: 99%

Emissions and In-Cylinder Combustion Characteristics of Fischer-Tropsch and Conventional Diesel Fuels in a Modern CI Engine

Sappok

Llaniguez

Acar

et al. 2005

ASME 2005 Internal Combustion Engine Division Fall Technical Conference (ICEF2005)

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Increasingly stringent emissions regulations, rising oil prices, and an increased focus on environmental awareness are driving the search for clean, alternative fuels. Derived from natural gas, coal, and even biomass Fischer-Tropsch (FT) fuels are one such alternative. The inherently clean nature of FT diesel coupled with the fact that FT diesel exhibits similar physical properties to those of conventional diesel make FT diesel an ideal candidate as both a blending agent with and eventual replacement for conventional petroleum-based diesel fuels.The potential for emissions reduction with FT diesel fuels in laboratory engine tests and on-road vehicle tests is well documented. While a number of chemical and physical characteristics of FT fuels have been attributed to the observed reduction in emissions, the actual effects of both the fuel properties and in-cylinder combustion characteristics in modern diesel engines are still not well understood. In this study a 2002, six-cylinder, 5.9 liter, Cummins ISB 300 diesel engine, outfitted with an in-cylinder pressure transducer, was subjected to a subset of the Euro III 13-mode test cycle under steadystate operating conditions. Emissions and in-cylinder pressure measurements were conducted for neat FT diesel, low sulfur diesel (LSD), ultra-low sulfur diesel (ULSD), and a blend of FT/LSD. The experimental results show a significant reduction in regulated emissions with the neat FT fuel and a more than proportional reduction in particulate emissions for the blend. In order to provide further insight into the emissions behavior of the fuels, combustion characteristics were determined from a heat release analysis based on the in-cylinder pressure measurements. In addition, a detailed chemical analysis of the fuels and particulate emissions was carried out. The differences in the measured combustion characteristics and fuel properties were compared to the emissions variations between the fuels studied, and an explanation for the observed emissions behavior of the fuels was developed.

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The Influence of Composition and Properties of Diesel Fuel on Particulate Emissions from Heavy-Duty Engines

Cited by 47 publications

References 8 publications

Fuel properties of tallow and soybean oil esters

Fuel properties of tallow and soybean oil esters

Assessment of toxic potential of primary and secondary particulates/aerosols from biodiesel vis-à-vis mineral diesel fuelled engine

Emissions and In-Cylinder Combustion Characteristics of Fischer-Tropsch and Conventional Diesel Fuels in a Modern CI Engine

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