Multivariate analysis of performance and emission parameters in a diesel engine using biodiesel and oxygenated additive

Jafari, Mohammad; Verma, Puneet; Bodisco, Timothy A.; Zare, Ali; Surawski, Nicholas C.; Borghesani, Pietro; Stevanović, Svetlana; Guo, Yi; Alroe, Joel; Osuagwu, Chiemeriwo Godday; Milić, Anđelija; Miljevic, Branka; Ristovski, Zoran; Brown, Richard J.

doi:10.1016/j.enconman.2019.112183

Cited by 36 publications

(16 citation statements)

References 91 publications

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“…Horibe et al [59] and Jafari et al [58] studied the correlation between NOx and maximum incylinder pressure and maximum rate of pressure rise in a diesel engine and reported that these parameters correlated with NOx formation. This is owing to NOx formation being significantly influenced by combustion temperature and maximum in-cylinder temperature during combustion.…”

Section: Fuel Effectmentioning

confidence: 99%

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Cold-start NOx emissions: Diesel and waste lubricating oil as a fuel additive

Zare

Bodisco

Jafari

et al. 2021

Fuel

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NOx emissions from diesel engines are a concern from both environmental and health perspectives.Recently this attention has targeted cold-start emissions highlighting that emission after-treatment systems are not effective in this period. Using a 6-cylinder, turbocharged, common-rail diesel engine, the current research investigates NOx emissions during cold-start using different engine performance parameters. In addition, it studies the influence of waste lubricating oil on NOx emissions introducing it as a fuel additive (1 and 5% by volume). To interpret the NOx formation, this study evaluates different parameters: exhaust gas temperature, engine oil temperature, engine coolant temperature, start of injection/combustion, in-cylinder pressure, heat release rate, maximum in-cylinder pressure and maximum rate of pressure rise. This study clarified how cold-start NOx increases as the engine is warming up while in general cold-start NOx is higher than hot-start. Results showed that in comparison with warmed up condition, during cold-start NOx, maximum in-cylinder pressure and maximum rate of pressure rise were higher; while start of injection, start of combustion and ignition delay were lower.During cold-start increased engine temperature was associated with decreasing maximum rate of pressure rise and peak apparent heat release rate. During cold-start NOx increased with temperature and it dropped sharply due to the delayed start of injection. This study also showed that using waste lubricating oil decreased NOx and maximum rate of pressure rise; and increased maximum in-cylinder pressure. NOx had a direct correlation with the maximum rate of pressure rise; and an inverse correlation with the maximum in-cylinder pressure.

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Section: Fuel Effectmentioning

confidence: 99%

“…This is owing to NOx formation being significantly influenced by combustion temperature and maximum in-cylinder temperature during combustion. The maximum in-cylinder pressure and maximum rate of pressure rise correlate to the temperature [58]. Therefore, this study uses these in-cylinder parameters to better explain the observed trend.…”

Section: Fuel Effectmentioning

confidence: 99%

Cold-start NOx emissions: Diesel and waste lubricating oil as a fuel additive

Zare

Bodisco

Jafari

et al. 2021

Fuel

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“…The reason can be better explained by looking at the size of the particles. Smaller particles typically have a greater contribution to the total PN and particles with bigger median diameter contributes more to larger particles [75]. Figure 6 shows that the median diameter of particles with D95W5 in Stages #6 and 7 is less than 50 nm while for the other two fuels it is above 80 nm.…”

Section: Fuel Effectmentioning

confidence: 95%

Emissions and performance with diesel and waste lubricating oil: A fundamental study into cold start operation with a special focus on particle number size distribution

Zare

Bodisco

Verma

et al. 2020

Energy Conversion and Management

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“…Asimismo, se ha reportado que la adición de triacetina hasta 10 % en peso aumenta ligeramente la densidad y disminuye el punto de congelación y la viscosidad cinemática del biodiésel. La triacetina (C 9 H 14 O 6 ) es un buen aditivo antidetonante y es fácilmente soluble en biodiésel, además tiene el beneficio de suprimir los golpes del motor, mejorar el rendimiento y reducir las emisiones por el tubo de escape [61].…”

Section: áCido Lácticounclassified

Producción de acetinas (aditivos para combustibles) a partir de glicerol

et al. 2021

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La elevada producción de glicerol, un subproducto de bajo costo proveniente de la industria del biodiésel, ha supuesto una amenaza tanto para el medio ambiente como para la economía. La transformación de glicerol en productos de valor agregado contribuiría positivamente a la economía del biodiésel. En este artículo de revisión se describen las rutas de valorización del glicerol y se presenta la esterificación como una de las más prometedoras para la transformación de glicerol en aditivos para combustibles; igualmente, se describen los resultados más relevantes entre 2010 y 2020 relacionados con las condiciones experimentales (temperatura, relación molar y tiempo de reacción), los catalizadores heterogéneos y la actividad catalítica (en términos de la conversión del glicerol y la selectividad) para la transformación de glicerol en acetinas (monoacetina, diacetina y triacetina). Se espera que esta revisión permita abordar esta técnica de valorización de manera rentable y ambientalmente sostenible.

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Multivariate analysis of performance and emission parameters in a diesel engine using biodiesel and oxygenated additive

Cited by 36 publications

References 91 publications

Cold-start NOx emissions: Diesel and waste lubricating oil as a fuel additive

Cold-start NOx emissions: Diesel and waste lubricating oil as a fuel additive

Emissions and performance with diesel and waste lubricating oil: A fundamental study into cold start operation with a special focus on particle number size distribution

Producción de acetinas (aditivos para combustibles) a partir de glicerol

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