Combustion and spray breakup characteristics of biodiesel for cold start application

Chaudhari, V.D.; Jagdale, Vishal S.; Chorey, Devashish; Deshmukh, Devendra

doi:10.1016/j.clet.2021.100285

Cited by 8 publications

(2 citation statements)

References 33 publications

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“…In turn, the opposite trend is typical of CO 2 emissions. Diesel fuel combustion in a single-injection engine is characterized by knocking due to rapid heat release, high rate of pressure rise, weak mixing, and increased NO x emissions in the exhaust gases [43]. The combustion of biodiesel and diesel fuels with a separate injection is characterized by the gradual heat release with minimal uctuations, low combustion temperature and NO x emissions due to improved fuel-air mixing.…”

Section: Analyzing Pollutions From Biodiesel Combustionmentioning

confidence: 99%

Operational and Environmental Tests of Nanomembrane-Produced Rapeseed Biodiesel at a Small Biomass-Fuelled Power Plant

Ashikhmin,

Verkhodanov,

Piskunov

et al. 2024

Preprint

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The research tests an environmentally sustainable rapeseed biodiesel produced by transesterification in an electrospinning-manufactured nanomembrane reactor from polyvinylidene fluoride and a copolymer of vinylidene fluoride with tetrafluoroethylene. The Kalman filter analyzed the following hydrodynamic and kinematic characteristics of the atomized flow of diesel fuel, fatty acid methyl esters (FAME) of rapeseed oil and their mixtures B6 and B12: droplet mean diameter and number, their absolute velocity and the distributions of their velocity and trajectories in streamlined and forced swirling gas-liquid flows. Fuel combustion tests took place in a test rig equipped with a swirl burner while maintaining the equivalence ratio equal to 1 and the air/liquid ratio – 14.5. They determine effects of injection pressure, FAME content, and gas-liquid flow swirling on the flame structure and temperature, the fuel ignition delay. The emissions of CO, CO2, and NOx from burning biodiesels B6 and B12, FAME, and diesel fuel are compared. The effect of exhaust gas recirculation on concentrations of the main combustion gases (O2, CO, CO2, NOx) is estimated. The findings treated by the weighted sum method made it possible to suggest the optimal biofuel blend. An affordable green energy technology for small-scale power generation is proposed.

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Section: Analyzing Pollutions From Biodiesel Combustionmentioning

confidence: 99%

Operational and Environmental Tests of Nanomembrane-Produced Rapeseed Biodiesel at a Small Biomass-Fuelled Power Plant

Ashikhmin,

Verkhodanov,

Piskunov

et al. 2024

Preprint

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“…Due to the introduction of increasingly strict emission regulations by the International Maritime Organization and the shortage of traditional fossil fuels, domestic and international research scholars have increased their research efforts on clean alternative fuels for ships as well as new combustion modes for marine diesel engines. Biodiesel, as a kind of renewable energy prepared from traditional oilseed crops, waste oils, and oil-producing microorganisms, whose main components are fatty acid methyl ester or ethyl ester, has the advantages of high cetane number and effective reduction of sulfur oxides and carbon smoke emissions, which can be used without changing the structure of diesel engines [1][2][3][4] . However, the high density, high viscosity, and poor atomization quality of biodiesel easily caused inadequate combustion to make engine power, economy, and emission decrease [5][6] .…”

Section: Introductionmentioning

confidence: 99%

Effect of fuel injection pressure on biodiesel blended combustion of Inland River diesel engine

Pu,

Jiang

2024

J. Phys.: Conf. Ser.

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Compared with ordinary diesel, biodiesel has greater viscosity, density, and flash point, especially under medium and low load, which is easy to cause poor atomization and inadequate combustion. In this paper, an in-line six-cylinder inland river ship diesel engine was used as a model to conduct simulation tests under 50% load of propulsion characteristics to explore the effects of different fuel injection pressures on oil-gas mixing, combustion, and emission of fuel blended with a small percentage of biodiesel. The results show that the increase of fuel injection pressure can enhance the average turbulence intensity in the cylinder as well as increase the relative flow velocity between oil and gas, which is beneficial to the mixture combustion. High fuel injection pressure will promote flame propagation, increasing the maximum burst pressure and the average temperature in the cylinder. Compared to the fuel injection pressure of 24 MPa, NOx emission increases by 5.5% and 15.6% respectively at 27 MPa and 30 MPa, and decreases by 10% and 25% respectively by SOOT.

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Review of physicochemical properties and spray characteristics of biodiesel

Senthil

Vijay

2023

Environ Sci Pollut Res

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Combustion and spray breakup characteristics of biodiesel for cold start application

Cited by 8 publications

References 33 publications

Operational and Environmental Tests of Nanomembrane-Produced Rapeseed Biodiesel at a Small Biomass-Fuelled Power Plant

Operational and Environmental Tests of Nanomembrane-Produced Rapeseed Biodiesel at a Small Biomass-Fuelled Power Plant

Effect of fuel injection pressure on biodiesel blended combustion of Inland River diesel engine

Review of physicochemical properties and spray characteristics of biodiesel

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