Temat: Biodiesel - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

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

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Skocz do pozycji: 3.

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

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Skocz do pozycji: 4.

Tytuł:: Use of biofuels in a compression-ignition engine : comprehensive technical and economical analysis
Autorzy:: Szabados, G.
Bereczky, A.
Powiązania:: https://bibliotekanauki.pl/articles/242602.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: conventional biodiesel
TBK-Biodiesel
complex evaluation
Diesel engine
combustion
emission
biodiesel konwencjonalny
ocena kompleksowa
Silnik wysokoprężny
spalanie
emisja
Opis:: The assessment of renewable fuels on the basis of the results of internal combustion engine’s tests is not clearly good or not good. Biofuels can be a part of sustainability from energy sources, energy security and energy diversity point of view. But they cannot be assessed better compared to the fossil diesel as for their combustion and air pollution and the engine’s external parameters. Comparison test series has been conducted with three different fuel and their controlled blends. These fuels were fossil diesel, the conventional, standardized biodiesel, and a new type biodiesel, which is the so-called TBK-biodiesel. These tests covered the physicochemical properties of the fuels, the engine external parameters, the combustion parameters and the exhaust emission of an internal combustion compression ignition engine. Furthermore, external costs have been calculated based on the emission results. Physicochemical properties, engine parameters, combustion parameters, exhaust emission and external costs have been observed as parameter groups, which contain many parameters. A complex evaluation could be built with the help of such kind of parameter set. On the basis of the results, it can be established that almost in the most cases the direction of the parameters’ changes is negative. Thus, the evaluation’s centre of gravity has been observed as shifted in the negative direction.
Źródło:: Journal of KONES; 2018, 25, 1; 385-393
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: An experimental analysis of performance and exhaust emissions of a CRDI diesel engine operating on mixtures containing mineral and renewable components
Autorzy:: Duda, Kamil
Wierzbicki, Sławomir
Mikulski, Maciej
Powiązania:: https://bibliotekanauki.pl/articles/132854.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: exhaust emissions
common rail
biodiesel
animal fat biodiesel
combustion analysis
emisje spalin
biodiesel z tłuszczu zwierzęcego
analiza spalania
Opis:: The manuscript presents a comparative analysis of the performance and emission characteristics of a compression ignition engine equipped with a Common Rail injection system. The engine is fueled with diesel-biodiesel mixtures containing 25% and 50% share (by volume) of renewable components. Conventional diesel is used as a reference. Turkey lard and rapeseed oil are used as raw materials and subjected to the single-stage transesterification process to obtain methyl esters. The experiments are performed on a medium-duty, turbocharged, inter-cooled, Common Rail Direct Injection (CRDI) diesel engine. This study concentrates on one engine speed of 1500 rpm, typical for gen-set applications, and mid-load range from 100 Nm to 200 Nm. The scope of measurements covers the analysis of exhaust gasses concentration and engine efficiency parameters. In addition, the in-cylinder pressure measurements are performed in order to provide insight into the differences in combustion characteristics between examined fuel mixtures. The study reveals that the addition of the renewable component to fuel mixture positively affects a number of examined performance parameters as well as de-creases the concentration of the examined toxic exhaust components, in the majority of cases.
Źródło:: Combustion Engines; 2019, 58, 4; 27-31
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Analiz processa poluchenija biodizelnogo gorjuchego i obosnovanie osnovnykh parametrov reaktora-razdelitelja
Analysis of the producing biodiesel fuel and justification of basic parameters reactor-separator
Autorzy:: Golub, G.
Kuharets, S.
Osypchuk, O.
Kuharets, V.
Powiązania:: https://bibliotekanauki.pl/articles/76410.pdf
Data publikacji:: 2015
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:: biodiesel fuel
biodiesel production
vegetable oil
energy consumption
reactor
theoretical research
Źródło:: Motrol. Motoryzacja i Energetyka Rolnictwa; 2015, 17, 4
1730-8658
Pojawia się w:: Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Numerical Analysis of The Effect of Hydrodynamics and Operating Conditions on Biodiesel Synthesis in a Rotor-Stator Spinning Disk Reactor
Autorzy:: Wen, Z.
Petera, J.
Powiązania:: https://bibliotekanauki.pl/articles/184848.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biodiesel synthesis
ANSYS Fluent
rotor-stator reactor
backflow
operating conditions
biodiesel
Opis:: A rotor-stator spinning disk reactor for intensified biodiesel synthesis is described and numerically simulated in the present research. The reactor consists of two flat disks, located coaxially and parallel to each other with a gap ranging from 0.1 mm to 0.2 mm between the disks. The upper disk is located on a rotating shaft while the lower disk is stationary. The feed liquids, triglycerides (TG) and methanol are injected into the reactor from centres of rotating disk and stationary disk, respectively. Fluid hydrodynamics in the reactor for synthesis of biodiesel from TG and methanol in the presence of a sodium hydroxide catalyst are simulated, using convection-diffusion-reaction multicomponent transport model with the CFD software ANSYS©Fluent v. 13.0. Effect of operating conditions on TG conversion is particularly investigated. Simulation results indicate that there is occurrence of back flow close to the stator at the outlet zone. Small gap size and fast rotational speed generally help to intensify mixing among reagents, and consequently enhance TG conversion. However, increasing rotational speed of spinning disk leads to more backflow, which decreases TG conversion. Large flow rate of TG at inlet is not recommended as well because of the short mean residence time of reactants inside the reactor.
Źródło:: Chemical and Process Engineering; 2017, 38, 2; 265-281
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Variability of glycerin fractions obtained during biodiesel production
Autorzy:: Sulewski, M.
Urbaniak, W.
Powiązania:: https://bibliotekanauki.pl/articles/346913.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej
Tematy:: glycerin phase
biodiesel
transesterification
Opis:: Recently, problems concerning the necessity of increasing the contribution of renewable energy are raised very often. In the aspect of combustion engines, the most common and promoted method consists in making liquid fuels from vegetable raw materials, which are subsequently added to conventional mineral fuels. In this study, the authors’ interest lies in the glycerin fraction, a side product of biodiesel production. Thus, it can be concluded that after phase separation, biofuel and glycerol are obtained and then glycerol can be utilized in the cosmetic, pharmaceutical or any other industry. However, in reality, we have to do with a three-stage equilibrium process, therefore, in the process of biodiesel production it is not glycerin that we deal with but a mixture of many substances of which glycerin is the main component. The amounts and contents of glycerin phases obtained in various technological conditions have been studied. Refined rapeseed oil, raw rapeseed oil and waste rapeseed oil were used as raw materials in biodiesel production.
Źródło:: Ars Separatoria Acta; 2012-2013, 9/10; 83-94
1731-6340
Pojawia się w:: Ars Separatoria Acta
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Biodiesel Production of Palm Oil Mill Effluent by Using Hydrotalcite Catalyst
Autorzy:: Agustina, Tuty Emilia
Heraldy, Eddy
Hadiah, Fitri
Hasanudin
Arita, Susila
Prakoso, Tirto
Sari, Tuti Indah
Suprapto, Bhakti Yudho
Putra, Muhammad Firdaus Kusuma
Ramadhani, Dimas Luthfi
Powiązania:: https://bibliotekanauki.pl/articles/2105272.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biodiesel
esterification
transesterification
hydrotalcite
Opis:: Biodiesel is currently preferred for consumption and has been widely used as a substitute for diesel. This study aimed to determine the effect of various methanol-to-oil ratios in the esterification process and also the effect of hydrotalcite catalyst weight on the transesterification product. The catalyst was characterized with SEM, XRD, FTIR, and TG-DTG-DTA. The esterification process was operated at various oil-to-methanol ratios, i.e., 1:12–1:36 and the transesterification was performed using several catalyst weights, 0.5%–2.5%. The results showed that the optimum conditions of esterification were at the 1:30 molar ratio of oil-to-methanol, which decreased the amount of acid number by 95.75%, while the optimum condition of transesterification was at 1.5% catalyst weight. The characteristics of biodiesel using 0.5–2% hydrotalcite catalyst (acid number, total glycerol, free glycerol, ester levels, viscosity, density, oxidation stability) have met the Indonesian biodiesel standard of SNI-04-7182-2012.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 172--181
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Optimization Of Protocol For Biodiesel Production Of Linseed (Linum Usitatissimum L.) Oil
Autorzy:: Ullah, F.
Bano, A.
Ali, S.
Powiązania:: https://bibliotekanauki.pl/articles/779238.pdf
Data publikacji:: 2013
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: linseed
biodiesel
protocol
optimization
Opis:: Attempts were made to optimize variables affecting the yield of linseed oil biodiesel in a base catalyzed transesterification reaction. The variables studied were reaction temperature (40-70oC), catalyst (NaOH) concentration (0.1-1.5%) and reaction time (30-180 min). The conversion of linseed oil into methyl esters was confirmed through analytical methods like 1H NMR, gas chromatography (GC) and refractometer. The maximum biodiesel yield (97š1.045% w/w) was obtained at 0.5% catalyst concentration, 65oC temperature, 180 min reaction time and 6:1 molar ratio of methanol to oil. 1H NMR confirmed the practically obtained % conversion of triglycerides into methyl esters which was further evidenced by refractometer analyses. The refractive index of biodiesel samples was lower than pure linseed oil. GC analysis confirmed the presence of linolenic acid (C18:3) as the dominant fatty acid (68 wt. %) followed by oleic acid (C18:1), linoleic acid (C18:2) and stearic acid (C18:0) respectively. The physical properties of linseed oil biodiesel like specific gravity (0.90 g/cm3) and flash point (177oC) were higher than American Society for Testing and Materials standards (ASTM 6751) for biodiesel. However, kinematic viscosity (3.752 mm2/s) was in the range of ASTM standards.
Źródło:: Polish Journal of Chemical Technology; 2013, 15, 1; 74-77
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Production of Biodiesel from Local Available Algae in Jordan
Autorzy:: Aljabarin, N.
Al Jarrah, A.
Powiązania:: https://bibliotekanauki.pl/articles/123308.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: algae
biodiesel
Almansora
Jordan
Opis:: The present study aims at producing diesel out of algae. The production of biodiesel was performed at Tafila Technical University laboratories. The algae were brought from Almansora stream at Tafila governorate - Jordan and afterwards dried in an oven at 80 °C for 12 hours. The dried algae were ground using disc mill until powder was obtained. The powdered algae underwent a distillation process with the addition of iron sulphate hydrate to the algae using a distillation column in order to extract the oil. Methanol was added to the oil, which was obtained from the distillation and using potassium hydroxide as a catalyst, the product was then separated in a funnel for about 10 hours until two layers of the solution were obtained; the organic layer represents the biodiesel. The biodiesel attributes are similar to the diesel oil, except that it reduces the emission of carbon dioxide CO₂ and there is no emission of sulphur dioxide SO₂.
Źródło:: Journal of Ecological Engineering; 2017, 18, 6; 8-12
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Application and comparison of soy based biodiesel fuel to ultra low sulfur diesel fuel in a HPCR diesel engine - part I: engine performance parameters
Autorzy:: Mathur, V. K.
Moscherosch, B. W.
Polonowski, C. J.
Naber, J. D.
Powiązania:: https://bibliotekanauki.pl/articles/243662.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: biodiesel
EGR
injection timing
performance
Opis:: In the US transportation sector uses two-thirds of the country's total oil consumption. In order to minimize the consumption in this sector there is a need to investigate alternate sources of energy. Biodiesel is a possible alternative to conventional diesel. Biodiesel has many characteristics similar to petroleum based diesel and can be blended with petroleum. However biodiesel's differences in fuel properties including viscosity, bulk modulus, density, and energy content can have significant impacts on engine performance parameters like BSFC and thermal efficiency. As the availability of biodiesel fuel increases, the need for engines capable of running on various mixtures of biodiesel fuel will be required. Similar to flex-fuel ethanol vehicles, control systems for the diesel engine and aftertreatment systems will need to detect and compensate for the fuel type. In this work, a soy based B100 biodiesel fuel and an ultra low sulfur diesel fuel were tested in a high-speed direct-injection high pressure common rail four-cylinder 1.9 L diesel engine. An internally developed engine control strategy allowed real-time calibration and testing of independent control parameters including start of injection, injection duration, injection pressure, and exhaust gas recirculation (EGR) level. Both the fuels were studied under varied injection timing (0°BTDC to 12°BTDC with increments of 3°) and EGR percentages of 0 and 10%. Analysis was performed to determine the Torque, BSFC and Brake thermal efficiency.
Źródło:: Journal of KONES; 2008, 15, 3; 327-334
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Microalgae as a potential source for biodiesel production
Mikroalgi jako potencjalne źródło produkcji biopaliw
Autorzy:: Jakóbiec, J.
Wądrzyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/286965.pdf
Data publikacji:: 2010
Wydawca:: Polskie Towarzystwo Inżynierii Rolniczej
Tematy:: biopaliwo
biodiesel
mikroalgi
biofuel
microalgae
Opis:: Authors of this paper present development trends in national biofuel market, in accordance with European Union regulations, as well as the first experiences and operational logistic issues. The review includes extensive information about potential sources for plant derivative biofuels production, like microalgae. Their main advantage is that they do not compete in food products market.
W referacie przedstawiono kierunki rozwoju rynku biopaliw w kraju na tle regulacji Unii Europejskiej jak również pierwsze doświadczenia i problemy eksploatacyjno-logistyczne. Zamieszczono obszerne informacje dotyczące potencjalnego źródła produkcji biopaliw pochodzenia roślinnego, jakim mogą być mikroalgi. Ich zaletą jest to, że nie stanowią one konkurencji na rynku produktów spożywczych.
Źródło:: Inżynieria Rolnicza; 2010, R. 14, nr 6, 6; 51-56
1429-7264
Pojawia się w:: Inżynieria Rolnicza
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Effect of Karanja biodiesel blends on the characteristics of diesel engine
Autorzy:: Yadav, Sandeep
Kumar, Amit
Chaudhary, Abhilasha
Powiązania:: https://bibliotekanauki.pl/articles/2176951.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: Diesel engine
Karanja biodiesel
performance
combustion
emission
silnik Diesla
biodiesel Karanja
wydajność
spalanie
emisja
Opis:: Extensive research is being conducted to create and use a wide range of alternative fuels to accommodate the world's growing energy needs. The objective of this experimental investigation was to analyze the effects of Karanja biodiesel blends on the performance, combustion, and emission characteristics of a compression ignition (CI) engine vis-a-vis neat diesel. Important physical parameters of Karanja oil were examined experimentally after transesterification and determined to be within acceptable limits. BTE of Karanja biodiesel blends was about 3-8% lower than diesel. For Karanja biodiesel blends, BSFC was about 2-9% higher than diesel but exhaust gas temperature and volumetric efficiency were lower. Emissions characteristics such as nitrogen oxides, hydrocarbons, and carbon monoxide were also analyzed for various tested fuels. Karanja biodiesel blends resulted in lesser CO and HC formation. Nonetheless, NOx emissions were around 10% greater than diesel. Peak cylinder pressure, heat release rate, and maximum rate of pressure rise versus crank angle were among the combustion characteristics parameters considered in this study. Combustion analysis revealed that for Karanja biodiesel blends heat release rate and peak cylinder pressure were lower than for neat diesel. Findings indicate that Karanja biodiesel can be considered a viable diesel engine fuel.
Źródło:: Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 115; 249--264
0209-3324
2450-1549
Pojawia się w:: Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Determination of the impact of the type of camelina oil used for production of biofuels on the fractional composition of CSME
Określenie wpływu rodzaju użytego oleju rzepakowego do produkcji biopaliw na skład frakcyjny CSME
Autorzy:: Wcislo, G.
Pracuch, B.
Powiązania:: https://bibliotekanauki.pl/articles/792893.pdf
Data publikacji:: 2014
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:: biodiesel production
biodiesel fuel
biofuel
gold of pleasure oil
diesel engine
fractional composition
distillation
temperature
Źródło:: Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 4
1641-7739
Pojawia się w:: Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:: Biblioteka Nauki

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