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    Wyświetlanie 1-13 z 13
    Tytuł:
    Dual - fuel low power generator with diesel engine using alternative fuels
    Autorzy:
    Imiołek, M.
    Piętak, A.
    Imiołek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/246549.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    alternative fuels
    diesel engine
    dual-fuel engine
    biofuels
    Opis:
    At the moment, there is a growing interest in low-power generating units in dispersed system. The production of energy in small units located in the vicinity of the energy recipients offers considerable benefits. First and foremost, it lowers the cost of energy production and the cost of its transfer and also makes the recipient independent from the domestic supplier. Small cogeneration aggregates will facilitate the use of energy from dispersed renewable resources. Gas self-ignition engines in cogeneration system powered with biofuels can be used in construction industry as ecological sources of heat and electrical energy, limiting the need for fossil fuels. This paper presents the possibility of using alternative fuels for internal combustion engines. It describes the possibility of using liquid biofuels separately or natural gas fuel to power diesel engines in dual fuel system. The conception of supplying low-power generator with diesel engine with natural gas to a dose of liquid biofuels test case. Pointed to the factors determining the desirability of a particular concept. Indicated the modification of the engine power to supply the natural gas generator with a dose of liquid biofuels. New technologies of extracting and using biofuels and alternative fuels are being introduced and developed for generating heat and electric energy. Studies on the use of gas and liquid alternative fuels are directly linked to research on the production of renewable and alternative energy as well as environment protection by minimizing emissions of toxic substances into the atmosphere.
    Źródło:
    Journal of KONES; 2012, 19, 3; 171-176
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The concept of an integrated laboratory control system for a dual - fuel diesel engine
    Autorzy:
    Śmieja, M.
    Wierzbicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/246809.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    biogas
    diesel engine
    dual-fuel feed system
    microprocessor engine control system
    Opis:
    The need to limit greenhouse gases emissions and to increase the share of renewable fuels in the general energy balance forces people to look for new alternative energy sources. Methane or biogas, in which methane is the main combustible component, is one of such fuels, which is believed to be a promising diesel engine fuel. It is worth emphasizing that biogas might be believed to be one of the cleanest fuels due to the fact that it can be produced from waste, which in normal conditions decomposes releasing methane into the atmosphere. Methane (biogas) combustion in diesel engines requires a dual-fuel feed system, in which the liquid fuel initiating auto-ignition will be injected into the combustion chamber. It comes as a consequence of a relatively high spontaneous combustion temperature of methane, which is not able to self-ignite in the chamber without an external source of ignition. This article presents a concept of constructing an integrated laboratory control system, which will provide optimal feed control of complex composition gaseous fuel and of the injection of an appropriate pilot dose of a liquid fuel into the combustion chamber. The solution proposed to control a dual-fuel diesel engine, which was mounted on the test bed, enables performing comprehensive diesel engine research, ensuring not only stable working conditions for the engine, but also granting an opportunity to smoothly regulate the composition of the artificial biogas which feeds the engine and to control basic parameters of the liquid fuel pilot dose.
    Źródło:
    Journal of KONES; 2012, 19, 3; 451-458
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental Investigation on Indicated Pressure and Heat Release for Direct Hydrogen Injection in a Dual Fuel Diesel Engine
    Autorzy:
    Siadkowska, Ksenia
    Barański, Grzegorz
    Sochaczewski, Rafał
    Wendeker, Mirosław
    Powiązania:
    https://bibliotekanauki.pl/articles/2201773.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    diesel engine
    direct hydrogen injection
    dual fuel
    combustion engine
    Opis:
    This paper presents the research results for a diesel and hydrogen fueled engine. The research object is a four-cylinder, four-stroke ADCR engine with a displacement of 2,636 cm3. In the experiments, glow plugs were replaced with compressed hydrogen injectors and a special adapter. Hydrogen was supplied directly into a combustion chamber using a test injector. A hydrogen dose in the tests was changed at selected test points and ranged from 0 to 160 dm3/min. The research were conducted at 1,500 rpm. A hydrogen injection start angle and maximum hydrogen dose were specified from the preliminary experiments. The following parameters were analyzed: indicated mean effective pressure, maximum pressure, crank angle of maximum cylinder pressure occurrence and heat release. The obtained results were statistically analyzed. The conducted analysis focused on determining whether there are significant differences between early and late injection and how these changes affect the measured parameters.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 3; 54--66
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Systemy dwupaliwowe silników wysokoprężnych lokomotyw spalinowych - Gazodiesel
    CNG/LNG dual fuel system for diesel lokomotives
    Autorzy:
    Dumenko, Piotr
    Babeł, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/250955.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Naukowo-Wydawniczy TTS
    Tematy:
    silnik Diesla
    lokomotywa spalinowa
    system dwupaliwowy
    olej napędowy
    gaz ziemny
    diesel engine
    diesel locomotive
    dual fuel
    diesel fuel
    natural gas
    Opis:
    Wdrożenie w silnikach Diesla lokomotyw spalinowych systemów dwupaliwowych – olej napędowy / gaz ziemny, prowadzi do obniżenia emisji substancji szkodliwych w spalinach oraz oszczędności w związku z konkurencyjnymi cenami gazu ziemnego. Przedstawiono opis zespołów i urządzeń systemu dwupaliwowego wdrożonego na lokomotywie spalinowej serii S200 wraz z rysunkami ich zabudowy w pojeżdzie. Omówiono zagadnienia dotyczące układu sterowania, prób i badań lokomotywy, certyfikacji, infrastruktury tankowania gazu. Zaprezentowano wyniki badań stacjonarnych i ruchowych lokomotywy oraz uzyskane efekty.
    With 70% of all locomotives still being powered by diesel and most of the locomotives being older than 30 years, the railway industry must urgently seek environmentally friendlier and economically more attractive alternatives to diesel fuel. Dual-fuel systems once installed on diesel locomotives, allow substituting most diesel fuel with much cheaper and cleaner gas fuels – biogas, natural gas, and syngas – without the necessity for large capital investments. This article describes a case of dual-fuel conversion of a S200/CHME3 series diesel locomotive, introducing to the system specifics, certification procedure, gas refueling infrastructure, as well as outlining the main economic and technical results. The article concludes by outlining the dual-fuel perspectives in the Polish railway industry and estimates the economic and ecological benefits its implementation can bring.
    Źródło:
    TTS Technika Transportu Szynowego; 2019, 11-12; 62-66
    1232-3829
    2543-5728
    Pojawia się w:
    TTS Technika Transportu Szynowego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biogas as a fuel for diesel engines
    Autorzy:
    Wierzbicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/246845.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    biogas
    methane
    diesel engine
    dual-fuel supply system
    Opis:
    The pursuit of reduced greenhouse gas emissions, as well as the increased share of renewable fuels in the overall energy balance has led to a search for alternative energy sources. One of the fuels on which great hopes are set as fuel for engines is biomethane or biogas, whose main component is methane. Biogas can be obtained from different products by using different technologies, so that it has potential as a widelyavailable fuel, which is quite easy to produce. The percentage of methane in biogas depends on the technology for obtaining biogas and ranges from 35% to around 75%. The largest biogas sources can be animal farms, where it is obtained from animal excrement. Another source is sewage treatment plants and rubbish dumps, where substantial quantities of biogas are obtained as a result of natural processes occurring in waste dumping sites or sewage. Biogas can also be acquired from waste obtained from fruit and vegetable processing as well as waste from meat plants. This paper examines the possibility of using biogas as a fuel for diesel engines. In these engines, the combustion of biogas (methane) requires the application of a dual-fuel supply system in which liquid fuel initiating gas fuel selfignition will be injected into the combustion chamber along with methane. The paper also contains example results showing the effect of the methane dose on the course of the combustion process in diesel engines.
    Źródło:
    Journal of KONES; 2012, 19, 3; 477-482
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dual-fuel feeding of diesel engine with generator gas and liquid fuel
    Dwupaliwowe zasilanie silnika ZS gazem generatorowym i paliwem plynnym
    Autorzy:
    Cupial, K.
    Duzynski, A.
    Gruca, M.
    Grzelka, J.
    Szwaja, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/793501.pdf
    Data publikacji:
    2011
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    piston engine
    generator gas
    sewage sludge
    gasification
    dual-fuel feeding
    diesel engine
    liquid fuel
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model CFD procesu tworzenia mieszanki w silniku Diesla zasilanym dwupaliwowo
    The CFD model of the mixture formation in the Diesel dual-fuel engine
    Autorzy:
    Pietrykowski, K.
    Grabowski, Ł.
    Sochaczewski, R.
    Wendeker, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/133172.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    silnik Diesla
    silnik dwupaliwowy
    CFD
    obliczeniowa mechanika płynów
    diesel engine
    dual-fuel engine
    computational fluid dynamics (CFD)
    Opis:
    Konwersja silnika diesla na zasilanie dwupaliwowe olejem napędowym i gazem ziemnym wiąże się ze zmniejszeniem kosztów eksploatacji. Jednakże w przypadku pośredniego wtrysku gazu do układu dolotowego pojawiają się ograniczenia w ilości zastąpienia oleju napędowego paliwem gazowym. Związane jest to ze zwiększoną emisją składników toksycznych spalin oraz z zagrożeniem wystąpienia spalania stukowego. Wynika to m.in. z przedostawania się niespalonego gazu do układu wylotowego spalin oraz z małym uwarstwieniem mieszanki w komorze spalania. Alternatywą dla takiego sposobu zasilania jest wtrysk bezpośredni gazu do komory spalania. W artykule przedstawiono wyniki badań trójwymiarowego modelu dwupaliowego silnika diesla z wykorzystaniem oprogramowania AVL FIRE. Wykonano analizę procesu tworzenia mieszanki w silniku zasilanym pośrednim i bezpośrednim wtryskiem gazu.
    The operation of the Diesel engine becomes cheaper when such an engine is converted to run on a Diesel oil and natural gas. However, if a gaseous fuel is directly injected into an intake system, the amount of a Diesel fuel to be replaced by a gaseous fuel is limited. This is due to the increased emissions of toxic compounds in exhaust gases and the risk of knocking as a result of entering an unburnt amount of a gaseous fuel into an exhaust system and a negligible mixture stratification in a combustion chamber. The direct injection of a gaseous fuel into the combustion chamber is an alternative method. The paper studies mixture formations for an indirect and direct gaseous fuel injection in an AVL FIRE 3D model of a dual-fuel Diesel engine.
    Źródło:
    Combustion Engines; 2013, 52, 3; 476-482
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reducing Diesel Engine Emission using Reactivity Controlled Approach
    Autorzy:
    Ghazal, O. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/124927.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    CFD
    dual fuel
    RRCI engine
    green cars
    emissions
    diesel engine
    Opis:
    Several automobile manufacturers are interested in investigating of dual fuel internal combustion engines, due to high efficiency and low emissions. Many alternative fuels have been used in dual fuel mode for IC engine, such as methane, hydrogen, and natural gas. In the present study, a reactivity controlled compression ignition (RCCI) engine using gasoline/diesel (G/D) dual fuel has been investigated. The effect of mixing gasoline with diesel fuel on combustion characteristic, engine performance and emissions has been studied. The gasoline was injected in the engine intake port, to produce a homogeneous mixture with air. The diesel fuel was injected directly to the combustion chamber during compression stroke to initiate the combustion process. A direct injection compression ignition engine has been built and simulated using ANSYS Forte professional code. The gasoline amount in the simulation varied from (50%-80%) by volume. The diesel fuel was injected to the cylinder in two stages. The model has been validated and calibrated for neat diesel fuel using available data from the literature. The results show that the heat release rate and the cylinder pressure increased when the amount of added gasoline is between 50%-60% volume of the total injected fuels, compared to the neat diesel fuel. Further addition of gasoline will have a contrary effect. In addition, the combustion duration is extended drastically when the gasoline ratio is higher than 60% which results in an incomplete combustion. The NO emission decreased drastically as the gasoline ratio increased. Moreover, addition of gasoline to the mixture increased the engine power, thermal efficiency and combustion efficiency compared to neat diesel fuel.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 1; 94-103
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of dual-fuel (diesel + natural gas) particle matter and CO2 emissions of a heavy-duty diesel engine during transient operation
    Autorzy:
    Barroso, P.
    Ribas, X.
    Pita, M.
    Dominguez, J.
    De Seia, E.,
    García, J.-M.
    Powiązania:
    https://bibliotekanauki.pl/articles/134220.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    dual fuel
    natural gas
    diesel engine
    heavy-duty
    transient
    particle matter
    CO2
    silnik dwupaliwowy
    gaz ziemny
    silnik spalinowy
    cząstki stałe
    dwutlenek węgla
    Opis:
    The aim of this study is to describe the impact on particle matter and CO2 emissions of converting an existing heavy-duty diesel engine for on-highway truck applications to a dual-fuel engine (diesel + natural gas), especially in transient operation. A dual-fuel engine with homogeneous gas charge injection in the intake line before turbocharger was considered. The results showed the feasibility of this kind of technology for transient operation reaching a significant reduction of particle matter plus a decrement in CO2 emissions at the expense of a small decrement of brake fuel conversion efficiency and an increment of unburned hydrocarbons in the exhaust gases.
    Źródło:
    Combustion Engines; 2013, 52, 2; 3-11
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of Harmful Chemical Compounds from Dual-Fuelled Diesel Engine
    Autorzy:
    Smigins, Ruslans
    Skrzek, Tomasz
    Górska, Milena
    Pawlak, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/101910.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    diesel engine
    CNG
    harmful emissions
    alternative fuel
    silnik wysokoprężny
    szkodliwe emisje
    paliwo alternatywne
    Opis:
    This paper investigated the impact of the exhaust gas recirculation on the concentration of selected harmful chemical compounds from the AVL 5402 research diesel engine powered with diesel fuel (DF) and compressed natural gas (CNG). The engine was operated in the dual fuel mode. It means that the engine was conventionally fuelled by regular diesel fuel and simultaneously by CNG dosed into the inlet pipe. The necessary tests were carried out for the mixtures containing 30, 50 and 70% of CNG (by energy content) in the total chemical energy delivered together with diesel fuel (DF) into the combustion chamber. The research was conducted for the stationary conditions of the engine operation at 1200 rpm and constant 1004 Joules of a fuel chemical energy delivered in each cycle into the combustion chamber. Under such conditions, the impact of the EGR rate changed in range of 0–50% on the emissions of selected unburned hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx) as well as particulate matter (PM), was evaluated. The obtained results confirmed that the EGR system is effective in the reduction of the NOx formation for all tested fuel mixtures. Nevertheless, it was found that the addition of CNG combusted in the diesel engine generates more harmful pollutants in comparison with diesel fuel. However, in some cases the concentration of NOx as well as PM was comparable or lower. It suggests that the combustion of CNG in diesels allows achieving environmental benefits. In this case, further optimization of the engine fuel supply system is necessary.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 4; 21-29
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the parameters of pilot dose injection in a dual fuel diesel engine on the combustion process
    Autorzy:
    Wierzbicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/246181.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    diesel engine
    injection pressure
    injector opening time
    fuel injection advance angle
    course of combustion
    Opis:
    The paper presents the effect of the main parameters of pilot dose ignition: injection pressure, injection advance angle and injector opening time on the combustion process in a dual fuel diesel engine. The study continues the research conducted at the Department of Mechatronics of the University of Warmia and Mazury, Olsztyn, on optimisation of dual fuel self-ignition engines with CNG as the main fuel dose. The results presented in the paper were obtained with a single-cylinder engine HATZ 1B40, adapted to methane combustion. The results presented in the paper show the recorded changes of pressure in the combustion chamber with a constant fuel pilot dose and different ignition advance angles. Scheme of fuelling and measurement systems, view of engine indicating system, average changes of pressure in the combustion chamber, average changes of pressure in the combustion chamber and average changes of pressure in the combustion chamber at dual fuel engine supply with diesel oil at varied pilot dose injection angle, effects of advance angle of the pilot dose injection on the maximum pressure of combustion, at various proportions of diesel oil and CNG, average changes of pressure in the combustion chamber at double-fuel engine fuelled with diesel oil and various shares of methane in the dose powering the engine, CNG consumption as a function of the advance angle of the pilot dose injection for various shares of the pilot dose are presented in the paper.
    Źródło:
    Journal of KONES; 2011, 18, 3; 499-506
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparison of selected operating parameters of the diesel engine fuelled with mixtures of diesel oil or liquid bio - fuel and natural gas for low - power generators
    Autorzy:
    Boruta, G.
    Imiołek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/241789.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    diesel engine
    dual-fuel engine
    biofuels
    alternative fuels
    Opis:
    Following the modern fuel market, one can notice that prices of liquid petroleum derivatives - petrol and diesel oil - which most often fuel piston internal combustion engines are increasingly higher. Similarly, the price of petroleum-derivative gas (LPG - the liquefied petroleum gas - simply speaking, a mixture of propane and butane) is also growing. Many academic and industrial institutions of science conduct research to determine whether it is possible to replace liquid petroleum-derivative fuels with some other potentially cheaper ones. It would also be beneficial if these new fuels were more "ecological" - so that their combustion products would not be harmful for the environment and if they were produced with the use of plants. Fuel stations commonly offer a fuel for diesel engines which is a mixture of fatty acids methyl esters (FAMEs) from vegetable oils, in Poland for instance from rape seeds. The paper presents a comparison of selected operating parameters of the Hatz 1B40 engine fuelled with mixtures of diesel oil or liquid bio-fuel and natural gas. Indicator diagrams, exhaust gases composition and vibration signals recorded on the engine body were analyzed. The study was conducted on the Hatz 1B40 diesel engine which is used among others in FOGO power generator sets, after replacing the original feeding system by common rail system for liquid fuels and after adding natural gas feeding system.
    Źródło:
    Journal of KONES; 2012, 19, 4; 111-116
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of operating parameters and indicators of a compression ignition engine fuelled with LPG
    Autorzy:
    Garbala, K.
    Piekarski, W.
    Andrzejewska, S.
    Witaszek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/197594.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    diesel engine
    dual-fuel engine
    LPG+diesel
    STAG LPG+diesel
    silnik wysokoprężny
    silnik podwójnego paliwa
    LPG + diesel
    STAG LPG + diesel
    Opis:
    This article presents the possibilities for using alternative fuels to power vehicles equipped with compression ignition (CI) engines (diesel). Systems for using such fuels have been discussed. Detailed analysis and research covered the LPG STAG autogas system, which is used to power dual-fuel engine units (LPG+diesel). A description of the operation of the autogas system and installation in a vehicle has been presented. The basic algorithms of the controller, which is an actuating element of the whole system, have been discussed. Protection systems of a serial production engine unit to guarantee its factorycontrolled durability standards have been presented. A long-distance test drive and examinations of the engine over 150,000 km in a Toyota Hilux have been performed. Operating parameters and performance indicators of the engine with STAG LPG+diesel fuelling have been verified. Directions and perspectives for the further development of such a system in diesel-powered cars have been also indicated.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2016, 93; 13-22
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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