Effects of fuel properties on exhaust emissions from diesel engines

Tan, Piqiang; Zhao, Jiwen; Hu, Zhiyuan; Lou, Diming; Du, Aimin; Du, D. X.

doi:10.1016/s1872-5813(13)60021-3

Cited by 35 publications

(21 citation statements)

References 8 publications

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“…The results of NOx and BaP were similar in agreement with the type of fuel used, resulting in 54 and 61% the diesel contribution, respectively. The values obtained of SO 2 are significantly lower than the 2005 results, due mainly to the reduction of the sulfur content in the fuels (Tan et al, 2013), being a positive measure for the improvement of the air quality for these areas. On the other hand, the emission of PM 10 and PM 2.5 decreased in 15 and 16%, respectively, despite the fact that the number of miles traveled annually increased by 47% from one period to the next.…”

Section: Resultsmentioning

confidence: 58%

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Sensitivity analysis of biodiesel blends on Benzo[a]pyrene and main emissions using MOVES: A case study in Temuco, Chile

Pino-Cortés

Díaz-Robles

Cubillos

et al. 2015

Science of The Total Environment

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Section: Resultsmentioning

confidence: 58%

“…On the other hand, the emission of PM 10 and PM 2.5 decreased in 15 and 16%, respectively, despite the fact that the number of miles traveled annually increased by 47% from one period to the next. An improvement in the age of the vehicle fleet and lower sulfur content (Tan et al, 2013) influenced the obtained results.…”

Section: Resultsmentioning

confidence: 89%

Sensitivity analysis of biodiesel blends on Benzo[a]pyrene and main emissions using MOVES: A case study in Temuco, Chile

Pino-Cortés

Díaz-Robles

Cubillos

et al. 2015

Science of The Total Environment

View full text Add to dashboard Cite

“…Emissions also depend on fuel type [17,25,26,27], and recently, renewable diesel fuels have been introduced on large scales to replace fossil diesel [28,29,30]. There is incomplete knowledge on the potential adverse health effects of emissions from these new types of renewable diesel fuels, especially regarding gentoxicity and carcinogenicity [23].…”

Section: Introductionmentioning

confidence: 99%

Particle characterization and toxicity in C57BL/6 mice following instillation of five different diesel exhaust particles designed to differ in physicochemical properties

Bendtsen

Gren²,

Malmborg³

et al. 2020

Preprint

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Background Diesel exhaust is carcinogenic and exposure to diesel particles cause health effects. We investigated the toxicity of diesel exhaust particles designed to have varying physicochemical properties in order to attribute health effects to specific particle characteristics. Particles from three fuel types were compared at 13% engine intake O 2 concentration: MK1 ultra low sulfur diesel (DEP13) and the two renewable diesel fuels hydrotreated vegetable oil (HVO13) and rapeseed methyl ester (RME13). Additionally, diesel particles from MK1 ultra low sulfur diesel were generated at 9.7% (DEP9.7) and 17% (DEP17) intake O 2 concentration. We evaluated physicochemical properties and histopathological, inflammatory and genotoxic responses on day 1, 28, and 90 after single intratracheal instillation in mice compared to reference diesel particles and carbon black. Results Moderate variations were seen in physical properties for the five particles: primary particle diameter: 15-22 nm, specific surface area: 152-222 m 2 /g, and count median mobility diameter: 55-103 nm. Larger differences were found in chemical composition: organic carbon/total carbon ratio (0.12-0.60), polycyclic aromatic hydrocarbon content (1-27 mg/mg) and acid-extractable metal content (0.9-16 mg/mg). Intratracheal exposure to all five particles induced similar toxicological responses, with different potency. Lung particle retention was observed in DEP13 and HVO13 exposed mice on day 28 post-exposure, with less retention for the other fuel types. RME exposure induced limited response whereas the remaining particles induced dose-dependent inflammation and acute phase response on day 1. DEP13 induced acute phase response on day 28 and inflammation on day 90. DNA strand break levels were not increased as compared to vehicle, but were increased in lung and liver compared to blank filter extraction control. Neutrophil influx on day 1 correlated best with estimated deposited surface area, but also with elemental carbon, organic carbon and PAHs. DNA strand break levels in lung on day 28 and in liver on day 90 correlated with acellular particle-induced ROS. Conclusions We studied diesel exhaust particles designed to differ in physicochemical properties. Our study highlights specific surface area, elemental carbon content, PAHs and ROS-generating potential as physicochemical predictors of diesel particle toxicity.

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“…A serviceable and tuned engine has normalized and predictable parameters of exhaust gases [11], and in the course of normal operation of the serviceable engine, the composition of the exhaust gas mixture does not significantly change [12], [13]. A significant increase of harmful impurities appears in the process of change of fuel characteristics [14], wear of engine parts, contamination of fuel equipment, as well as improper maintenance and operation. This significantly worsens the efficiency of fuel combustion that leads to the appearance of a large number of harmful substances in the exhaust gases as well as reduces the overall efficiency of the engine [15].…”

Section: Introductionmentioning

confidence: 99%

Method for measuring locomotive diesels characteristics for environmental monitoring tasks

2019

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A method for measuring diesel engines characteristics based on recording the irregularities of time parameters of the crankshaft rotation is proposed. We demonstrate that the change of diesel engines characteristics significantly affects the established norms and limit values of engine emissions of pollutants and harmful substances. The ways of improving the environmental characteristics of diesel engines, including change of fuel composition by adding mixtures are considered. A method of control of the diesel engine parameters consisting in measuring the instantaneous values of the speed of the crankshaft rotation and assessing the deviations of these parameters from normal values has been proposed. The method is implemented in the form of procedures including data collection from sensors installed on the engine, data filtering, and their characteristic analysis. An autonomous measuring device based on the microcontroller has been developed with the help of which data has been collected from the sensors of the 16-cylinder turbocharged engine. We have carried out experiments on process data that determine possibly faulty engine elements that worsen its environmental parameters.

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Effects of fuel properties on exhaust emissions from diesel engines

Cited by 35 publications

References 8 publications

Sensitivity analysis of biodiesel blends on Benzo[a]pyrene and main emissions using MOVES: A case study in Temuco, Chile

Sensitivity analysis of biodiesel blends on Benzo[a]pyrene and main emissions using MOVES: A case study in Temuco, Chile

Particle characterization and toxicity in C57BL/6 mice following instillation of five different diesel exhaust particles designed to differ in physicochemical properties

Method for measuring locomotive diesels characteristics for environmental monitoring tasks

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