Soy-Biodiesel Impact on NO<sub><i>x</i></sub>Emissions and Fuel Economy for Diffusion-Dominated Combustion in a Turbo−Diesel Engine Incorporating Exhaust Gas Recirculation and Common Rail Fuel Injection

Adi, Gayatri; Hall, Carrie M.; Snyder, David B.; Bunce, Michael; Satkoski, Christopher; Kumar, Shankar; Garimella, Phanindra; Stanton, Donald W.; Shaver, Gregory M.

doi:10.1021/ef9006609

Cited by 37 publications

(26 citation statements)

References 38 publications

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“…The combustion of this premixed DEE contributes to increased NO x emission, and the contribution becomes obvious at high engine loads. The NO x emission result obtained in this study is comparable with the result reported by Adi et al [29]. Eckerle et al [30] demonstrated that the NO x emission was more serious on advanced engines operating on biodiesel.…”

Section: Engine Performancessupporting

confidence: 90%

Combustion and emission characteristics of a turbo-charged common rail diesel engine fuelled with diesel-biodiesel-DEE blends

et al. 2011

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The combustion and emission characteristics of a turbo-charged, common rail diesel engine fuelled with diesel-biodiesel-DEE blends were investigated. The study reports that the brake-specific fuel consumption of dieselbiodiesel-DEE blends increases with increase of oxygenated fuel fractions in the blends. Brake thermal efficiency shows little variation when operating on different dieselbiodiesel-DEE blends. At a low load, the NO x emission of the diesel-biodiesel-DEE blends exhibits little variation in comparison with the biodiesel fraction. The NO x emission slightly increases with increase in the biodiesel fraction in diesel-biodiesel-DEE blends at medium load. However, the NO x emission increases remarkably with increase of the biodiesel fraction at high load. Particle mass concentration decreases significantly with increase of the oxygenated-fuels fraction at all engine speeds and loads; particle number concentration decreases remarkably with increase of the oxygenated-fuels fraction. HC and CO emissions decrease with increasing oxygenated-fuels fraction in these blends.

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Section: Engine Performancessupporting

confidence: 90%

Combustion and emission characteristics of a turbo-charged common rail diesel engine fuelled with diesel-biodiesel-DEE blends

et al. 2011

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“…A similar observation was reported by Adi et al [16], who claimed that the use of oxygen-containing fuels increases the combustible oxygen mass fraction in the diffusion flame front; this in turn would increase the temperature of combustion, favoring the formation of NO.…”

Section: Introductionsupporting

confidence: 84%

Chemical Kinetic Study of Nitrogen Oxides Formation Trends in Biodiesel Combustion

Jiang¹,

Golovitchev²,

Lurbe³

et al. 2012

International Journal of Chemical Engineering

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The use of biodiesel in conventional diesel engines results in increasedNOxemissions; this presents a barrier to the widespread use of biodiesel. The origins of this phenomenon were investigated using the chemical kinetics simulation tool: CHEMKIN-2 and the CFD KIVA3V code, which was modified to account for the physical properties of biodiesel and to incorporate semidetailed mechanisms for its combustion and the formation of emissions. Parametric ϕ-T maps and 3D engine simulations were used to assess the impact of using oxygen-containing fuels on the rate of NO formation. It was found that using oxygen-containing fuels allows more O2molecules to present in the engine cylinder during the combustion of biodiesel, and this may be the cause of the observed increase in NO emissions.

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“…Generally, due to the lower heating values and higher kinematic viscosities, use of renewable biofuels causes reductions in the power output of the engine [4,7,[60][61][62][63]. The current review study revealed that TBC method is a promising solution to prevent the engine power loss when biofuels are used instead of fossil diesel ( [31,32], Table 4, Figure 5).…”

Section: Engine Powermentioning

confidence: 97%

Biofuels and thermal barrier: A review on compression ignition engine performance, combustion and exhaust gas emission

Masera

Hossain

2019

Journal of the Energy Institute

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The performance of an internal combustion engine is affected when renewable biofuels are used instead of fossil fuels in an unmodified engine. Various engine modifications were experimented by the researchers to optimise the biofuels operated engine performance. Thermal barrier coating is one of the techniques used to improve the biofuels operated engine performance and combustion characteristics by reducing the heat loss from the combustion chamber. In this study, engine tests results on performance, combustion and exhaust emission characteristics of the biofuels operated thermal barrier coated engines were collated and reviewed. The results found in the literature were reviewed in three scenarios: (i) uncoated versus coated engine for fossil diesel fuel application, (ii) uncoated versus coated engine for biofuels (and blends) application, and (iii) fossil diesel use on uncoated engine versus biofuel (and blends) use on coated engine. Effects of injection timing, injection pressure and fuel properties on thermal barrier coatings were also discussed. The material type, thickness and properties of the coating materials used by the research community were presented. The effectiveness and durability of the coating layer depends on two key properties: low thermal conductivity and high thermal expansion coefficient. The current study showed that thermal barrier coatings could potentially offset the performance drop due to use of biofuels in the compression ignition engines. Improvements of up to 4.6% in torque, 7.8% in power output, 13.4% in brake specific fuel consumption, 15.4% in brake specific energy consumption and 10.7% in brake thermal efficiency were reported when biofuels or biofuel blends were used in the thermal barrier coated engines as compared to the uncoated engines. In coated engines, peak cylinder pressure and exhaust gas temperature were increased by up to 16.3 bar and 14% respectively as compared to uncoated condition. However, changes in the heat release rates were reported to be between-27% and +13.8% as compared to uncoated standard engine. Reductions of CO, CO2, HC and smoke emissions were reported by up to 3.8%, 11.1%, 90.9% and 63% respectively as compared to uncoated engines. Significant decreases in the PM emissions were also reported due to use of thermal barrier coatings in the combustion chamber. In contrast, at high speed and at high load operation, increase in the CO and CO2 emissions were also reported in coated engines. Coated engines gave higher NOx emissions by about 4-62.9% as compared to uncoated engines. Combined effects of thermal barrier coatings and optimisation of fuel properties and injection parameters produced further performance and emissions advantages compared to only thermal barrier coated engines. Overall, current review study showed that application of thermal barrier coatings in compression ignition engines could be beneficial when biofuels or biofuel blends are used instead of standard fossil diesel. However, more research is needed combining coatings, types of bio...

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Soy-Biodiesel Impact on NO_xEmissions and Fuel Economy for Diffusion-Dominated Combustion in a Turbo−Diesel Engine Incorporating Exhaust Gas Recirculation and Common Rail Fuel Injection

Cited by 37 publications

References 38 publications

Combustion and emission characteristics of a turbo-charged common rail diesel engine fuelled with diesel-biodiesel-DEE blends

Combustion and emission characteristics of a turbo-charged common rail diesel engine fuelled with diesel-biodiesel-DEE blends

Chemical Kinetic Study of Nitrogen Oxides Formation Trends in Biodiesel Combustion

Biofuels and thermal barrier: A review on compression ignition engine performance, combustion and exhaust gas emission

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Soy-Biodiesel Impact on NOxEmissions and Fuel Economy for Diffusion-Dominated Combustion in a Turbo−Diesel Engine Incorporating Exhaust Gas Recirculation and Common Rail Fuel Injection

Cited by 37 publications

References 38 publications

Combustion and emission characteristics of a turbo-charged common rail diesel engine fuelled with diesel-biodiesel-DEE blends

Combustion and emission characteristics of a turbo-charged common rail diesel engine fuelled with diesel-biodiesel-DEE blends

Chemical Kinetic Study of Nitrogen Oxides Formation Trends in Biodiesel Combustion

Biofuels and thermal barrier: A review on compression ignition engine performance, combustion and exhaust gas emission

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Product

Resources

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Soy-Biodiesel Impact on NO_xEmissions and Fuel Economy for Diffusion-Dominated Combustion in a Turbo−Diesel Engine Incorporating Exhaust Gas Recirculation and Common Rail Fuel Injection