Vegetable oils as fuels for diesel engines

Cruz, Jaqueline Matos; Ogunlowo, A. S.; Chancellor, W. J.; Goss, J. R.

doi:10.1016/0166-3097(81)90007-9

Cited by 10 publications

(2 citation statements)

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“…The use of long alkyl chain fatty acids in the form of triglycerides from vegetable sources, such as sunflower, rapeseed and soy, received significant attention in the early 1980s as an alternative fuel for diesel combustion (Cruz et al, 1981 ; Pryde, 1983 ). However, the use of triglycerides was quickly found to adversely affect the durability and performance of diesel engines (Pryde, 1983 ; Ryan et al, 1984 ); many of these issues were found to be diminished in severity through trans-esterification of the triglycerides using short chain alcohols to form esters (Harrington, 1986 ; Graboski and McCormick, 1998 ).…”

Section: Potential Biofuel Molecules and The Effect Of Molecular Strumentioning

confidence: 99%

Molecular Structure of Photosynthetic Microbial Biofuels for Improved Engine Combustion and Emissions Characteristics

Hellier

Purton

Ladommatos

2015

Front. Bioeng. Biotechnol.

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The metabolic engineering of photosynthetic microbes for production of novel hydrocarbons presents an opportunity for development of advanced designer biofuels. These can be significantly more sustainable, throughout the production-to-consumption lifecycle, than the fossil fuels and crop-based biofuels they might replace. Current biofuels, such as bioethanol and fatty acid methyl esters, have been developed primarily as drop-in replacements for existing fossil fuels, based on their physical properties and autoignition characteristics under specific combustion regimes. However, advances in the genetic engineering of microalgae and cyanobacteria, and the application of synthetic biology approaches offer the potential of designer strains capable of producing hydrocarbons and oxygenates with specific molecular structures. Furthermore, these fuel molecules can be designed for higher efficiency of energy release and lower exhaust emissions during combustion. This paper presents a review of potential fuel molecules from photosynthetic microbes and the performance of these possible fuels in modern internal combustion engines, highlighting which modifications to the molecular structure of such fuels may enhance their suitability for specific combustion regimes.

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Section: Potential Biofuel Molecules and The Effect Of Molecular Strumentioning

confidence: 99%

Molecular Structure of Photosynthetic Microbial Biofuels for Improved Engine Combustion and Emissions Characteristics

Hellier

Purton

Ladommatos

2015

Front. Bioeng. Biotechnol.

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“…The direct injection of SVOs at normal temperature – that have higher viscosity may not give the desirable performance and emission characteristics from the diesel engine and adversely affect the durability of compression ignition engines including increased injector nozzle choking, piston ring sticking and dilution of the engine lubricant. 18,19 However, it is an economical and convenient solution to the energy requirements of some countries and hence still actively researched. 20 It is reported by Chiong et al 21 that SVOs can be a good candidate even for gas turbines if the combustion characteristics can be improved.…”

Section: Introductionmentioning

confidence: 99%

Performance and emission characteristics of a diesel engine employing straight vegetable oils from Vanuatu as fuels

Sisi

Ahmed

Rohindra

2014

Advances in Mechanical Engineering

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The performance characteristics of the engine and the emission levels with Copra Oil (CPO), Virgin Coconut (cocos nucifera) Oil (VCO), Tamanu (calaphyllum inopyllum) Oil (TMO), and Nangae (canarium indicum) Oil (NGO) are presented. The oils, obtained from naturally grown trees in Vanuatu, were tested as straight vegetable oils (SVOs) in a Diesel engine and the results are compared with those of neat diesel. The oils were converted to their fatty-acid-methyl-esters (FAMEs) using gas chromatography to determine their fatty acid compositions. The brake thermal efficiency with SVOs was found to be comparable to diesel. The structure of the alkyl chain and the carbon-to-hydrogen ratio were also studied. All the oils have Palmitic acid, Capric acid, Caprylic acid, and Oleic acid as the major fatty acids. The CPO and VCO have higher amounts of Oleic acid, which acts as an additive and breaks up the interaction between the major fatty acids at higher temperatures, reducing the viscosity. Emissions of CO2 were lower while those of CO, NOx, and SO2 were higher with SVOs compared to diesel. The results indicate that the local SVOs are good and inexpensive substitute fuels for Vanuatu that can help the country meet the UN’s sustainable development goals.

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Transient and Steady Spray Characteristics of Soybean Oil/2,5-Dimethylfuran Blended Fuel in an Underwater Stirling Engine

Wang,

Qiao,

Zhou

et al. 2023

J. Shanghai Jiaotong Univ. (Sci.)

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Vegetable oils as fuels for diesel engines

Cited by 10 publications

References 0 publications

Molecular Structure of Photosynthetic Microbial Biofuels for Improved Engine Combustion and Emissions Characteristics

Molecular Structure of Photosynthetic Microbial Biofuels for Improved Engine Combustion and Emissions Characteristics

Performance and emission characteristics of a diesel engine employing straight vegetable oils from Vanuatu as fuels

Transient and Steady Spray Characteristics of Soybean Oil/2,5-Dimethylfuran Blended Fuel in an Underwater Stirling Engine

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