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Wyszukujesz frazę "Biodiesel" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Physicochemical properties of fuel compositions obtained from diesel fuel and different kinds of fatty raw material
Autorzy:
Duda, K.
Piętak, A.
Powiązania:
https://bibliotekanauki.pl/articles/241877.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
biodiesel quality examination
biodiesel mixture
animal fat biodiesel
vegetable oil biodiesel
transesterification
Opis:
Increased interest in development of alternative fuels used to power combustion engines is caused by excessive use of fuels obtained from mineral sources. Depletion of resources, political aspects as well as the negative impact on the environment are commonly discussed issues in relation to fossil fuels. On the other hand, biodegradability, lower toxic components emissions and interchangeability with mineral fuels are commonly described benefits related to biodiesel, interpreted as fatty acid methyl esters obtained from fatty raw material. Also the multiplicity of raw materials that can be used for production promotes popularization of the biodiesel. However the variety of raw materials can have significant impact on the number of physicochemical properties of alternative fuels due to the differences in molecular structures forming given type of raw material. The article presents analysis of properties of different types of biodiesel and its mixtures with diesel according to the outlines presented in the quality standards for mineral and alternative fuels. Alternative fuels were produced in the laboratory setup from swine, poultry, rape and sunflower fatty raw material. Such parameters as: density, kinematic viscosity, flash point, acid value, oxidation stability, cold filter plugging point, sulphur content, water content and total contamination were examined, based on the results, the quality of the biofuels was evaluated. Study confirms that biofuels derived from plant origin fatty raw material present favorable results in the aspect water content, total contamination, acid value and cold flow properties, thus biofuels derived from animal origin raw fatty material presents lower density and sulphur content.
Źródło:
Journal of KONES; 2018, 25, 3; 137-143
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of biodiesel origin on the exhaust gasses concentration in compression ignition engine
Autorzy:
Duda, K.
Śmieja, Ł.
Mikulski, M.
Hunicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/245106.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
exhaust gas emission
common rail. biodiesel combustion
animal fat biodiesel mixtures
vegetable oil
biodiesel mixture
Opis:
The use of renewable fuels can reduce consumption of fossil fuels as well as diversify the range of alternative energy carriers. The advantage of biofuels is that they can be obtained from waste materials. Biofuels derived from vegetable or animal raw fatty material, as a result of transesterification, are characterized by similar physicochemical properties to mineral diesel fuel in terms of quality standards, however the fatty acid composition of the raw material can significantly influence exhaust gas emissions. The aim of the research is to determine the impact of the origin of various renewable biocomponents on exhaust gasses concentration emitted by compression ignition engine. The tests were conducted on a Common Rail, direct injection engine, operating under steady state conditions. Two kinds of biofuels produced from different fatty raw materials (rapeseed oil and swine lard) were used. All the experiments were performed on fuels containing a total of 50% biocomponent shares admixed to commercial diesel fuel. The tested samples included both: binary and ternary mixtures. During the experiments the differences in: hydrocarbons, carbon monoxide and nitrogen oxides concentrations were examined as a result of different fuel composition. The study shows that the best results were achieved for fuel containing both plant and animal biocomponents.
Źródło:
Journal of KONES; 2018, 25, 3; 145-152
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biofuels from animal fatty raw material : availability and quality assessment
Autorzy:
Duda, K.
Mikulski, M.
Krajewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/247661.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
animal fat biodiesel
quality examination
biodiesel mixture
biofuel
methyl ester
Opis:
Biodiesel is widely perceived as a source of ecological energy used to power compression ignition engines as an alternative to fossil fuels. Depletion of fossil fuels and increasing environmental awareness of society has led to an increased demand for energy derived from renewable sources. This phenomenon requires acquisition of raw material used for biofuel production. In order avoid controversies related to misuse of edibles; sources of biofuel production should be viewed as inedible or waste materials. This paper presents an analysis of possible sources of animal material intended for biofuel production. An examination of the quality assessment for biofuels obtained in the laboratory setup, produced from swine lard and turkey fat is presented. The results have been compared to rapeseed biofuel and commercial diesel fuel as fuels commonly used to power compression ignition engines. The paper concerns an examination of pure biofuels and their mixtures with commercial diesel fuel in three different proportions. Parameters such as density, viscosity, acid value, cold filter plugging point, oxidation stability, sulphur content, total contamination, water content and flash point has been examined according to procedures outlined in the PN-EN 14214 Standard. Based on the results, biofuels and their mixtures have been analysed for use in compression ignition engines.
Źródło:
Journal of KONES; 2016, 23, 4; 79-86
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptive control algorithm of the field esterification plant
Autorzy:
Duda, K.
Rozmarynowski, Z.
Chraplewska, N.
Powiązania:
https://bibliotekanauki.pl/articles/241773.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
biodiesel production
control algorithm
methyl esters
ethyl esters
air pollution
Opis:
Biofuel production to power compression ignition engines on a small scale, using alkaline catalysts is not a difficult process. The problem could be the collection of excess alcohol, which is used during production in this conduct of process of biofuel. The authors attempted to develop the control algorithm of alcohol evaporation process, in the "field esterification plant" which is used to produce biofuels on demands for Department of Mechatronics and Information Technology Education Chair of University of Warmia and Mazury. The article describes the mobile installation used for the production of biofuels and requirements, which this installation should conform, working in a variety of conditions. The installation should work properly with different mixtures of components with different proportions of vegetable and animal fats mixed with methyl or ethyl alcohol. The algorithm controls the process in a way that it was possible to use of not only methyl alcohol, but also other alcohols, at variable temperature of refrigerant cooling excess alcohol vapours. The adaptive control algorithm of alcohol evaporation process improves the efficiency of system operation by reducing production time and decrease of electricity power and water (needed to cool the heat exchanger) consumption. Software upgrade also affects the quality of the obtained final product, as well as on the whole process.
Źródło:
Journal of KONES; 2012, 19, 4; 163-171
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The properties of mixtures of FAEE diesel and ethanol used to power compression ignition engines
Autorzy:
Piętak, A.
Duda, K.
Chraplewska, N.
Ambrosewicz, M.
Struś, M.
Powiązania:
https://bibliotekanauki.pl/articles/245969.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
biodiesel
combustion engines
air pollution
biofuels examination
biofuel mixtures
ethyl esters
Opis:
Due to the continuous increase in prices of conventional fuels, the production of biofuels on an industrial, as well as small scale, nowadays is becoming more economically efficient. However, the usage of biofuels in its pure form is a problem when one have to supply them with modern injection systems. Due to the difference in parameters of biofuels in comparison with conventional fuels, the attempt to develop a mixture of optimal parameters for use in diesel engines, equipped with modern injection system, was made. Fuels derived from substrates which are produced independently of food production and which can energize CI engines are occupying now stronger market positions. Easier access to know-how and an uncomplicated production process result in technological development, not only in mass-scale plants but also in smaller devices which meet the needs of individual users or in which residues of other processes are neutralized or reused13 samples were tested, mixed of diesel, FAEE and ethyl alcohol. The mixtures were prepared and tested in The Department of Mechatronics in University of Warmia and Mazury for the most important parameters in the evaluation of possibility of usage to power modern compression ignition engines.
Źródło:
Journal of KONES; 2013, 20, 4; 341-347
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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