Effects of fuel injection parameters on emission characteristics of diesel engines operating on various biodiesel: A review

Shameer, P. Mohamed; Ramesh, K.; Sakthivel, R.; Purnachandran, R.

doi:10.1016/j.rser.2016.09.117

Cited by 119 publications

(44 citation statements)

References 68 publications

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“…Biodiesel can be used for same conventional diesel engines regardless of its origin and feedstocks from which it is derived [21]. Low CO 2 emission without sulfur and aromatic contents are the important features that make it environment-friendly [21,22]. The usage of biodiesel is a sustainable practice to make our environment free from pollution and play a major role in the aspects of climate change as it contributes to no or little CO 2 in building up greenhouse gasses [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Assessment of fuel properties on the basis of fatty acid profiles of oleaginous yeast for potential biodiesel production

Patel

Arora

Mehtani

et al. 2017

Renewable and Sustainable Energy Reviews

188

100

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A B S T R A C TOver the last decade, there has been a huge upsurge of interest in sustainable production of biomass-based biofuels to fulfill the existing energy demand and simultaneously reducing the environmental deterioration. Earlier, vegetable oils and animal fats were utilized for biodiesel production, but due to food crisis and environmental sustainability, renewable sources such as neutral lipid derived from microbes are gaining much attention for budding biodiesel industries. Among various types of microorganisms, oleaginous yeasts are more promising feedstock to accomplish the current demand of biodiesel production and utilize a large number of cost-effective renewable substrates for their growth and lipid accumulation. However, biodiesel obtained from oleaginous yeasts have certain restrictions regarding their commercial utilization due to their unstable fuel properties such as oxidative stability, cetane number, viscosity and low-temperature performance etc. Numerous articles have been published in the public domain describing the fatty acid profiles of oleaginous yeast as feedstock for biodiesel production. However, the evaluation of quality parameters of biodiesel obtained from oleaginous yeasts is still in infancy. Although there is a huge disparity in a number of papers published for biodiesel production yet the reporting performance on diesel engines need to be verified in details. In this review article, attempt has been made to assess the important biofuel properties on the basis of the fatty acid profile of oleaginous yeast. Thus this evaluation would provide a guideline to the biodiesel producer to improve the production plans related to feedstocks for oleaginous yeast, culture conditions and biodiesel blending.

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Section: Introductionmentioning

confidence: 99%

Assessment of fuel properties on the basis of fatty acid profiles of oleaginous yeast for potential biodiesel production

Patel

Arora

Mehtani

et al. 2017

Renewable and Sustainable Energy Reviews

188

100

View full text Add to dashboard Cite

show abstract

“…Bio-diesel is an alternative to conventional diesel due to its desirable attributes such as biodegradability and sustainability. The effects of biodiesel blends on the injection characteristics have been studied by other researchers [1,2]. The atomization characteristics of biodiesel fuel such as spray tip penetration and mean droplet size play an important role in engine performance and emission characteristics.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Effect of Biodiesel Blends on a DI Diesel Engine’s Injection and Combustion

Tziourtzioumis

Stamatelos

2017

Energies

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Differences in the evolution of combustion in a single cylinder, DI (direct injection) diesel engine fuelled by B20 were observed upon processing of the respective indicator diagrams. Aiming to further investigate the effects of biodiesel on the engine injection and combustion process, the injection characteristics of B0, B20, B40, B60, B80 and B100 were measured at low injection pressure and visualized at low and standard injection pressures. The fuel atomization characteristics were investigated in terms of mean droplet velocity, Sauter mean diameter, droplet velocity and diameter distributions by using a spray visualization system and Laser Doppler Velocimetry. The jet break-up characteristics are mainly influenced by the Weber number, which is lower for biodiesel, mainly due to its higher surface tension. Thus, Sauter mean diameter (SMD) of sprays with biodiesel blended-fuel is higher. Volume mean diameter (VMD) and arithmetic mean diameter (AMD) values also increase with blending ratio. Kinematic viscosity and surface tension become higher as the biodiesel blending ratio increases. The SMD, VMD and AMD of diesel and biodiesel blended fuels decreased with an increase in the axial distance from spray tip. Comparison of estimated fuel burning rates for 60,000 droplets' samples points to a decrease in mean fuel burning rate for B20 and higher blends.

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“…It could be viewed that CO emission is higher for all conditions other than the standard CR and standard IT. At standard CR and standard IT, the lowest CO scale of 0.21% was observed; meanwhile, at standard CR and retarded IT, the CO emission amplified to 0.23% due to the incomplete combustion contributed by more amount of injected fuel and deprived subsequent diffusion combustion phase at advanced IT [1]. At CR of 16.5:1 and 21°BTDC, CO emission is at maximum level of about 0.26%.…”

Section: Analysis and Evaluation Of The Modelmentioning

confidence: 92%

“…At standard CR and advanced IT (24°B TDC), the lowest HC emission of 252 ppm was recorded. The fact behind the lower HC emission at advanced IT is the higher in-cylinder temperature and earlier start of combustion relative to top dead centre [1]. The highest scale of HC emission was observed at lower CR of 16.5:1 and IT of 22°BTDC, which is because the higher fuel spray penetration reaching the combustion chamber wall leads to incomplete combustion [38].…”

Section: Analysis and Evaluation Of The Modelmentioning

confidence: 97%

“…Instability in supply/demand of fuels, hiking fuel production cost and harmful impact on environment due to fossil fuel burning intensifies the need for the replacement of fossil fuel. Biodiesel is gaining momentous attention because of these energy concerns and environmental issues [1]. According to BP (British Petroleum) statistical review of world energy (June 2016), the global oil consumption has been increased by 1.9 million barrels per day by the year 2015 than the previous year scale.…”

Section: Introductionmentioning

confidence: 99%

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Influence of antioxidants on fuel stability of Calophyllum inophyllum biodiesel and RSM-based optimization of engine characteristics at varying injection timing and compression ratio

Shameer¹,

Ramesh²

2017

J Braz. Soc. Mech. Sci. Eng.

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Fuel stability' is one of the most significant properties of biodiesel, which insists the biodiesel stability during prolonged storage period. This paper investigates the effects of commercially available and cheap synthetic antioxidants (PY-pyrogallol, PG-propyl gallate, TBHQ-tert-butylhydroxyquinone, BHT-butylated hydroxytoluene, BHA-butylated hydroxyanisole) on the accelerated oxidation stability, storage stability and thermal stability of Calophyllum inophyllum biodiesel. Characterization of biodiesel oxidation variability regarding different antioxidants was evaluated using Fourier Transform Infra-red (FTIR) spectroscopy by analyzing the FTIR spectrum regions of C-H bonds of the respective antioxidants/biodiesel blends. TBHQ dosed with pure biodiesel (B20D3) enhances the thermal stability by 12.05%, storage stability by 8.13% and oxidation stability by 25.27%, when compared to those of biodiesel blend (B20) without any antioxidant. The order of effectiveness of antioxidants at constant 1000 ppm concentration with pure biodiesel is obtained as TBHQ [ PG [ PY [ BHT [ BHA. B20D3 has been evaluated for the combined effects of varying injection timing (IT) (21°-24°BTDC) and compression ratio (CR) (16.5:1-18:1) on engine characteristics through experimental investigation and response surface methodology optimization. CR of 17.5 and IT of 23°BTDC were found to be optimal values for superior performance and lower emissions with composite desirability of 0.785.

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Effects of fuel injection parameters on emission characteristics of diesel engines operating on various biodiesel: A review

Cited by 119 publications

References 68 publications

Assessment of fuel properties on the basis of fatty acid profiles of oleaginous yeast for potential biodiesel production

Assessment of fuel properties on the basis of fatty acid profiles of oleaginous yeast for potential biodiesel production

Experimental Investigation of the Effect of Biodiesel Blends on a DI Diesel Engine’s Injection and Combustion

Influence of antioxidants on fuel stability of Calophyllum inophyllum biodiesel and RSM-based optimization of engine characteristics at varying injection timing and compression ratio

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