Vegetable Oils And Their Derivatives As Fuels For CI Engines: An Overview

Babu, A. K.; Devaradjane, G.

doi:10.4271/2003-01-0767

Cited by 173 publications

(63 citation statements)

References 14 publications

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“…The references for their use as biodiesel far outnumber those shown and are omitted. Vegetable oils present, comparatively to diesel oil, lower LHV (from 10% to 17% lower, leading to lower energy release per mass burned), higher viscosity (leading to poor atomization), higher boiling temperatures (delaying evaporation and formation of a combustible mixture), higher bulk modulus (causing injector to open earlier), higher flash point (delaying mixture ignition), higher oxidation instability (leading to higher tendency to degradation during storage), and a tendency for thickening with time (Babu & Devaradjane, 2003;Franco & Nguyen, 2011). When using the same injectors and settings adjusted for diesel fuel, the higher viscosity, surface tension and density of the vegetable oils result in changes in injected oil volumes, injection delay after injector opening, spray patterns (cone and penetration) and atomization (droplet size distribution) (Bialkowski et al, 2005).…”

Section: Tung (Aleurites Fordii)mentioning

confidence: 99%

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Vegetable Oils of Soybean, Sunflower and Tung as Alternative Fuels for Compression Ignition Engines

Hartmann¹,

Garzon²,

Hartmann³

et al. 2013

Int. J. Thermo

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This work assess the technical viability of the use of straight vegetable oils as fuel for a compression ignition engine applied to distributed electric generation. The use of neat soybean, sunflower, and tung oils, three vegetable oils with potential for application in southern Brazil, was assessed. For this purpose, an electronically controlled conversion kit that preheats the fuel to a proper temperature was developed and adapted to a single-cylinder, naturally aspired, mechanically injected and controlled, compression ignition engine. The engine performance in a steady-state dynamometric cell, in terms of power, torque, specific fuel consumption, and emissions, using vegetable oils, was measured and compared to the performance for neat diesel oil. The neat diesel oil resulted in the highest brake power and the neat tung oil resulted in the lowest, with the relative difference among all fuels varying between 5 % and 20 %. However, the first law efficiency was highest for some of the blends tested, reaching 38 %, and increased for lower speed. The NO x and CO emissions both increased as the engine speed decreased, revealing the lack of complete combustion especially in the higher speed regime.

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Section: Tung (Aleurites Fordii)mentioning

confidence: 99%

“…In their work, they presented the performance of a compression ignition engine fuelled with diesel, cotton seed, rapeseed and tung oils. Recent reviews on the use of straight vegetable oils (SVO) may be found in Bhattacharya & Reddy (1994), Sinha & Misra (1997), Babu & Devaradjane (2003), Mondal et al (2008), and.…”

Section: Introductionmentioning

confidence: 99%

Vegetable Oils of Soybean, Sunflower and Tung as Alternative Fuels for Compression Ignition Engines

Hartmann¹,

Garzon²,

Hartmann³

et al. 2013

Int. J. Thermo

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show abstract

“…This leads to lower carbon monoxide (CO), unburned hydrocarbons (HC), and particulate matter (PM) emissions with biodiesel fuel. However, higher oxygen content in biodiesels produces higher nitrogen oxides (NOx) emissions, which is a major concern [18][19][20][21][22]. Biodiesel has a higher bulk modulus, sound velocity, viscosity, and cetane number than diesel fuel.…”

Section: Introductionmentioning

confidence: 99%

The effect of oxygen content in soapnut biodiesel-diesel blends on performance of a diesel engine

Pattanaik¹,

Jena²,

Misra³

2022

Int. J. Automot. Mech. Eng.

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In this study, 18 soapnut biodiesel-diesel blends along with soapnut oil as an additive in some blends were prepared and used in a diesel engine to investigate the effect of oxygen content in the fuel blends on engine performance and emission characteristics. Considering the large variations in the oxygen content of these fuel blends, the obtained results were demonstrated based on varying fuel oxygen content. Findings showed that the best engine performance was achieved with a fuel oxygen content in the range of 1.8%-3.0%, whereas the best engine emissions were obtained with a fuel oxygen content in the range of 0.71%-2.37%. Hence, considering both engine performance and emissions, the optimal zone of fuel oxygen content was found to be in the range of 1.80%-2.37%. Thus, it can be concluded that biodiesel blended fuels having an oxygen content in the aforesaid range can be successfully used in diesel engines with comparable engine performance and emissions to those using diesel fuel. Nevertheless, further research is required to reduce the fuel oxygen content to this optimal range if the blends consist of higher biofuel components. Besides that, the use of suitable additives in the biodiesel blended fuels may be a viable option to achieve the said purpose, which needs further research.

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“…Furthermore, massive usage of conventional fossil fuel in automotives, agriculture and power generation is the leading causes of air pollution and the main source of global warming emissions. The past literature reveals that the most viable way to meet this increasing demand is by using biodiesel as alternative fuels [1][2][3][4]. In general, biodiesel is the most alluring category of fuel that can be utilized directly in any unmodified diesel engine.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis on Exhaust Emissions of Diesel Engine using Madhuca Indica Biodiesel and its Diesel Blends

Bhaskar¹

2018

IJRASET

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The usage of fossil fuels are rising rapidly and diminishing its reserves at the same phase. Moreover petroleum based fuels are emitting enormous toxic exhaust emissions which are perilous to the environment. This environmental pollution is causing triple impact on health of humans, plants and other living habitats. In the recent time, the plant based biodiesel are becoming a hopeful alternative renewable fuel especially with non-edible oils as feed stock, to replace the conventional diesel fuel. The present research paper aims to perform experimental evaluation of the exhaust emissions from direct injection diesel engine when madhuca indica oil methyl ester and its diesel blends used as fuel. Madhuca indica oil methyl ester (MIOME) was prepared through transesterification process using methyl alcohol and an experimental study was carried-out using a 4-stroke, single cylinder, compression ignition direct injection engine fuelled with MIOME, different blends (B20M, B40M, B60M and B100M) of MIOME and diesel fuel. The experimental tests revealed that the emission of B100M biodiesel has lower carbon monoxide (CO), particle pollution, and smoke opacity emissions when compared to diesel fuel. Biodiesels are naturally oxidized fuels and so emitting lower exhaust emissions due to its higher cetane number than diesel fuel with less or no sulphur content.

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Vegetable Oils And Their Derivatives As Fuels For CI Engines: An Overview

Cited by 173 publications

References 14 publications

Vegetable Oils of Soybean, Sunflower and Tung as Alternative Fuels for Compression Ignition Engines

Vegetable Oils of Soybean, Sunflower and Tung as Alternative Fuels for Compression Ignition Engines

The effect of oxygen content in soapnut biodiesel-diesel blends on performance of a diesel engine

Experimental Analysis on Exhaust Emissions of Diesel Engine using Madhuca Indica Biodiesel and its Diesel Blends

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