Production and treatment of rapeseed oil methyl esters as alternative fuels for diesel engines

Cvengroš, Ján; Považanec, František

doi:10.1016/0960-8524(95)00190-5

Cited by 79 publications

(41 citation statements)

References 3 publications

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“…Alkyl esters prepared from some kinds of vegetable oil do not have to be only a simple replacement for classical diesel fuels, but their role as specific additives can be substantially more important. Esters of higher fatty acids in fuel blends with fossil diesel fuels play the role of an oxygenate component with a positive influence on the combustion process, enhancing the cetane number [1], as well as on the composition of the exhaust gases [2]. The addition of alkyl esters to conventional diesel fuel influences also the low-temperature properties of blended fuels [3].…”

Section: Introductionmentioning

confidence: 99%

Properties of alkyl esters base on castor oil

Cvengroš

Paligová

Cvengrošová

2006

Euro J Lipid Sci & Tech

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Properties of alkyl esters base on castor oilCastor oil is a non-traditional raw material for the preparation of methyl and ethyl esters of higher fatty acids as alternative fuels for diesel engines. Castor oil contains ricinoleic acid (12-hydroxy octadecene acid) with a major share of about 90%. The article presents the parameters of castor oil-based methyl esters (COME) and ethyl esters (COEE) defined by the standard EN 14 214. The densities of COME and COEE are higher than the limit defined by the standard EN 14 214. The viscosities are more than twice as high as the limit value. The cetane numbers are lower than defined by the standard EN 14 214. For the remaining parameters, COME and COEE meet, in principle, the standard EN 14 214. The presence of the free hydroxyl group has virtually no effect on the values of such parameters as carbon residue, filterability at low temperatures and oxidation stability, for which some influence was expected. The physicochemical parameters of the castor oil esters are discussed in comparison to the analogous esters of high-oleic sunflower oil, which contain about 80% of oleic acid. Both the methyl and ethyl esters of high-oleic sunflower oil meet the standard EN 14 214 in all prescribed parameters.

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Section: Introductionmentioning

confidence: 99%

Properties of alkyl esters base on castor oil

Cvengroš

Paligová

Cvengrošová

2006

Euro J Lipid Sci & Tech

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“…In particular, biodiesel has received wide attention as a replacement for diesel fuel because it is biodegradable, nontoxic and can significantly reduce toxic emissions and overall life cycle emission of CO2 from the engine when burned as a fuel (Cvengroš and Považanec, 1996;USEPA, 2002). Biodiesel can form blends with petroleum diesel fuel at any ratio and thus have the potential to partially, or even totally, replace diesel fuel in diesel engines.…”

Section: Introductionmentioning

confidence: 99%

Brake Torque of a Diesel Engine Fuelled with Biodiesel and Diesel

Shirneshan¹

2013

IJRSE

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Brake torque of a diesel engine was investigated by considering the effects of biodiesel (from waste cooking oil) in fuel mixture (biodiesel and diesel fuel) on this performance characteristic. The experiments were done on a 4 cylinder direct-injection diesel engine. Results showed that by the use of biodiesel brake power decreases up to17%. Also results showed that the increase in engine load appeared to cause an increase in the brake power up to 69%. On the other hand by increasing rpm of the engine brake power increases continuously up to speed 1800 to 2000 rpm and after that drops.

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“…Biodiesel is biodegradable, nontoxic, and it can significantly reduce toxic emissions and overall life cycle emission of carbon dioxide from the engine when burned as a fuel (Cvengroš and Považanec 1996;USEPA 2002). It can be used as a blended fuel in diesel engines without modification to the engines.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Effect of Biodiesel-Diesel and Ethanol-Diesel on the Particulate Emissions of a Direct Injection Diesel Engine

Cheung

Huang

2009

Aerosol Science and Technology

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Experiments were conducted on a 4-cylinder direct-injection diesel engine using ultralow sulfur diesel blended with biodiesel or ethanol to investigate the particulate emissions of the engine under five engine loads at the maximum torque engine speed of 1800 rpm. Four biodiesel blended fuels and four ethanol blended fuels with oxygen concentrations of 2%, 4%, 6%, and 8% were used. With the increase of oxygen content in the blended fuels, the brake specific fuel consumption becomes higher and the brake thermal efficiency improves slightly. The smoke opacity, the particulate mass concentration and the brake specific particulate emissions all decrease, and the reductions are more obvious for the ethanol blended fuels, while the proportion of soluble organic fraction (SOF) in the particle increases with the biodiesel blended fuels having slightly higher proportion of SOF than the ethanol blended fuels. In addition, the total number concentration of particles smaller than 750 nm in diameter decreases gradually for the ethanol blended fuels but increases significantly for the biodiesel blended fuels. The biodiesel blended fuels also increase the number concentrations of particles smaller than 50 nm and particles smaller than 100 nm while the ethanol-blended fuels reduce these particles.

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Production and treatment of rapeseed oil methyl esters as alternative fuels for diesel engines

Cited by 79 publications

References 3 publications

Properties of alkyl esters base on castor oil

Properties of alkyl esters base on castor oil

Brake Torque of a Diesel Engine Fuelled with Biodiesel and Diesel

Comparison of the Effect of Biodiesel-Diesel and Ethanol-Diesel on the Particulate Emissions of a Direct Injection Diesel Engine

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