Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Biodiesel fuels"”.
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SYNTHESIS AND CHARACTERIZATION OF BIODIESEL FUELS FROM FURFURYL ALCOHOL AND SPENT COFFEE GROUNDS
<p><strong>ABSTRACT</strong></p> <p>Biodiesel can be synthesized using several different triacylglycerides, alcohols, and catalysts. In this study, fatty acid methyl esters (FAMEs) and fatty acid ethyl esters (FAEEs) were produced from their respective alcohols and coffee oil, using either a basic …
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Experimental and computational exploration of advanced biodiesel fuels and hybridisation process evaluation of feedstocks and their chemical combinations
Thesis submitted in fulfilment of the academic requirements for the award of the degree of Doctor of Engineering: Chemical Engineering, Durban University of Technology, 2022.
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Performance and emissions of compression ignition engine fueled with preheated blend of vegetable oil
… flywheel torque that has been produced from the biodiesel fuels are less than the natural diesel (ND). Biodiesel emission results shown a better emission compared to the ND fuels. The CO2, CO, HC and O2 content that released from the biodiesel fuels are clearly lower than the ND fuels. At low …
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An Evaluation of Teaching Methods Based on Cognitive Achievement
… the</p> <p>production, uses, and performance of biodiesel fuels in compression engines. Treatments were different instructional techniques including lecture, demonstration, and a combination of lecture and demonstration. Cognitive achievement was measured on low level cognition and high level …
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Using the greet model to analyze algae as a feedstock for biodiesel production
… growing interest in renewable, carbon-neutral biofuels such as ethanol and biodiesel. A life-cycle analysis is conducted in this study to determine the viability of using algae as a feedstock for biodiesel. The method involves assessing energy use, fossil fuel use, greenhouse gas emissions, and …
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Effect of a co-solvent feedstock on the synthesis of biodiesel via heterogeneous catalysis
… a single phase feedstock solution to produce biodiesel. Biodiesel production usually uses a two-phase feedstock which causes several issues. The two different feed stocks have been compared using several methods. The single phase feedstock, consisting of soybean oil, free fatty acid, and …
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Characterisation of biodiesel from Litsea glutinosa
Submitted in complete fulfillment for the Degree of Master of Technology: Biotechnology, Durban University of Technology, Durban, South Africa, 2014.
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Ignition delay of oxygenated fuel droplets: development of a 1 second drop tower and initial 1-g test results
<p>United States' dependency on petroleum fuels, much of it imported, has remained at the same level even as alternative fuels become more readily available to the consumer market. One alternative to petroleum based fuel is biodiesel. Biodiesel has been shown to have lower carbon monoxide, …
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A numerical study of the multi-component effects on the combustion and evaporation of biofuels and blends
Biodiesel fuels and their blends with diesel are often used to reduce carbon trace and to help reducing engine emissions. However, previous studies have shown mixed effects of biodiesel on NOx emissions. Operating a compression-ignition engine in low- temperature combustion mode as well as using …
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Thermal conversion of algal biomass and its derivatives to fuels and petrochemicals
Submitted in fulfilment of the requirements for the degree of Doctor of Engineering: Chemical Engineering, Durban University of Technology, Durban, South Africa, 2021.