Abstract
Paper provides the summarized results of high-speed and direct-injection compression ignition engines (further diesel engines) VALMET 320 DMG (ship gen-set) and Audi 1Z (passenger vehicle) performance research, which was carried out using different kinds and types of biofuel. Main attention focused on energy and environmental characteristics of diesel engine performance using 1st, 2nd and 3rd generation alcohol, fatty acid methyl and butyl esters blends with conventional diesel fuel (EN 590). Results of biofuel blends use instead diesel fuel showed that the efficiency of energy use increases 1–4%; at practically unchanged NOX concentration unburned product (CO, CH) concentration decreases up to 20% and exhaust gas smokiness – 55–85%.
Highlights
Climate change and warming has forced humankind to focus on the reduction of greenhouse gases emissions and, on the production and consumption of biofuels
Results of biofuel blends use instead diesel fuel showed that the efficiency of energy use increases 1–4%; at practically unchanged NOX concentration unburned product (CO, CH) concentration decreases up to 20% and exhaust gas smokiness – 55–85%
Scientists have determined that mixtures containing 68% spring Camelina sativa (CS) oil and 32% pork lard methyl esters meet the requirements of standard EN 14214, and engine tests of blends of this type of biofuel with fossil diesel fuel have been performed [8]
Summary
Climate change and warming has forced humankind to focus on the reduction of greenhouse gases emissions and, on the production and consumption of biofuels. One of initiatives involves reducing the pollution in transport sector by 60% through the use of new and stable fuel types. Growing biodiesel production and the related increasing demand for feedstock has increased agricultural produce prices and competition with the food sector. Alternative feedstock for biodiesel production has been researched to reduce the negative impact of biodiesel production on the food sector, with new types of oil plants and various fatty wastes being considered as potential options. Scientists have determined that mixtures containing 68% spring CS oil and 32% (vol.) pork lard methyl esters meet the requirements of standard EN 14214, and engine tests of blends of this type of biofuel with fossil diesel fuel have been performed [8]. Butanol made from biomass containing cellulose is classified as 2nd generation biofuel
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