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Tytuł:
Investigation of the efficiency of a dual-fuel gas turbine combustion chamber with a plasma‒chemical element
Autorzy:
Serbin, Serhiy
Diasamidze, Badri
Dzida, Marek
Chen, Daifen
Powiązania:
https://bibliotekanauki.pl/articles/32921246.pdf
Data publikacji:
2023
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
gas turbine engine
power plant
dual-fuel combustion
combustion chamber
liquid fuel
gaseous fuel
plasma-assisted combustion
Opis:
The study is devoted to the possibility of increasing the efficiency of the working process in dual-fuel combustion chambers of gas turbine engines for FPSO vessels. For the first time, it is proposed to use the advantages of plasma‒chemical intensification of the combustion of hydrocarbon fuels in the dual-fuel combustion chambers, which can simultaneously operate on gaseous and liquid fuels. A design scheme of a combustion chamber with a plasma‒chemical element is proposed. A continuous type mathematical model of a combustion chamber with a plasma‒chemical element has been developed, which is based on the solution of a system of differential equations describing the processes of chemical reactions in a turbulent system, taking into consideration the initiating effect of the products of plasma‒chemical reactions on the processes of flame propagation. A modified six-stage kinetic scheme of hydrocarbon oxidation was used to simultaneously predict the combustion characteristics of the gaseous and liquid fuels, taking into account the decrease in the activation energy of carbon monoxide oxidation reactions when the products of the plasma‒chemical element are added. The results reveal that the addition of plasma‒chemical products significantly reduces CO emissions in the outlet section of the flame tube (from 25‒28 ppm to 3.9‒4.6 ppm), while the emission of nitrogen oxides remains practically unchanged for the studied combustion chamber. Further research directions are proposed to enhance the working process efficiency of a dual-fuel combustion chamber for gas turbine engines as part of the power plant of FSPO vessels.
Źródło:
Polish Maritime Research; 2023, 2; 68-75
1233-2585
Pojawia się w:
Polish Maritime Research
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:
Numerical methodology for evaluation the combustion and emissions characteristics on WLTP in the light duty dual-fuel diesel vehicle
Autorzy:
Kneba, Zbigniew
Stepanenko, Denys
Rudnicki, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2097638.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
dual-fuel engine
drive cycle simulation
internal combustion engine
emission reduction
alternative fuels
WLTP
silnik dwupaliwowy
symulacja cyklu jazdy
silnik o spalaniu wewnętrznym
ograniczanie emisji
paliwa alternatywne
Opis:
The worldwide aim of reducing environmental impact from internal combustion engines bring more and more stringent emission regulations. In 2017 by EU has been adopted new harmonized test procedure called WLTP. In general terms this test was designed for determining the levels of harmful emissions and fuel consumption of traditional and hybrid cars. This procedure contains specific driving scenarios which representing real-life driving patterns. Test cycles contain vehicle velocity versus time profiles and directly in powertrain analysis on the test benches cannot be used. In order to back calculate drive cycles to engine rpm versus torque profiles a simple longitudinal vehicle dynamics method was used in this paper. Moreover, in order to determine most representative engine operation points during WLTP a density based grid clustering method was implemented. The experimental part of the study focuses on the comparative evaluation of the effect of various diesel to LPG substitution ratios (0% LPG, 10% LPG, 20% LPG and 30% LPG) on combustion and emission characteristics of dual-fuel diesel engine.
Źródło:
Combustion Engines; 2022, 61, 2; 94--102
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the share of natural gas in the total fuel supply dose on the combustion process in a CRDI engine
Autorzy:
Wierzbicki, Sławomir
Boruta, Grzegorz
Konieczny, Łukasz
Łazarz, Bogusław
Powiązania:
https://bibliotekanauki.pl/articles/2098083.pdf
Data publikacji:
2021
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
CNG
Common Rail
dual-fuel engine
course of combustion
heat release
silnik dwupaliwowy
przebieg spalania
wydzielanie ciepła
Opis:
Natural gas is one of the potential combustion engine fuels whose proportion in the overall energy balance is expected to increase. Owing to some of its properties, its use requires a dual-fuel supply system; thus, the use of natural gas as a fuel for diesel engines is currently limited. Systems that supply gas fuel to diesel engines do not usually interfere with the engine control system. This solution significantly reduces system-installation costs. However, as demonstrated in the present study, it considerably changes the course of the combustion process, which increases thermal and mechanical loads. In this case, the combustion process can be controlled by changing the liquid fuel injection pressure or advancing the injection angle. This, however, requires interference with the engine control system.
Źródło:
Transport Problems; 2021, 16, 1; 141--150
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations of the emission characteristics of a dual-fuel gas turbine combustion chamber operating simultaneously on liquid and gaseous fuels
Autorzy:
Serbin, Serhiy
Diasamidze, Badri
Gorbov, Viktor
Kowalski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1573591.pdf
Data publikacji:
2021
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
gas turbine engine
dual-fuel combustion
combustion chamber
liquid and gaseous fuels
Opis:
This study is dedicated to investigations of the working process in a dual-fuel low-emission combustion chamber for a floating vessel’s gas turbine. As the object of the research, a low-emission gas turbine combustion chamber with partial premixing of fuel and air inside the outer and inner radial-axial swirls was chosen. The method of the research is based on the numerical solution of the system of differential equations which represent the physical process of mass and energy conservation and transformations and species transport for a multi-component chemically reactive turbulent system, considering nitrogen oxides formation and a discrete ordinates model of radiation. The chemistry kinetics is presented by the 6-step mechanism of combustion. Seven fuel supply operating modes, varying from 100% gaseous fuel to 100% liquid fuel, have been analysed. This analysis has revealed the possibility of the application of computational fluid dynamics for problems of dual-fuel combustion chambers for the design of a floating vessel’s gas turbine. Moreover, the study has shown the possibility of working in different transitional gaseous and liquid fuel supply modes, as they satisfy modern ecological requirements. The dependencies of the averaged temperature, NO, and CO concentrations along the length of the low-emission gas turbine combustion chamber for different cases of fuel supply are presented. Depending on the different operating modes, the calculated emission of nitrogen oxides NO and carbon monoxide CO at the outlet cross-section of a flame tube are different, but, they lie in the ranges of 31‒50 and 23‒24 mg/nm3 on the peak of 100% liquid fuel supply mode. At operating modes where a gaseous fuel supply prevails, nitrogen oxide NO and carbon monoxide CO emissions lie in the ranges of 1.2‒4.0 and 0.04‒18 mg/nm3 respectively.
Źródło:
Polish Maritime Research; 2021, 2; 85-95
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silniki o zapłonie samoczynnym mieszanki homogenicznej kluczem do dalszego rozwoju tłokowych silników spalinowych
Homogeneous mixture CI engines as a key to the further development of IC piston engines
Autorzy:
Szamrej, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2147158.pdf
Data publikacji:
2021
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
silnik spalinowy
silnik o zapłonie samoczynnym
mieszanki homogeniczne
silnik dwupaliwowy
ZS
RCCI
DUAL FUEL
HCCI
PCCI
PPCI
PCI
SPCCI
SACI
internal combustion engines
CI engines
homogeneous mixture
dual-fuel engine
ENGINES
Opis:
W artykule przedstawiono syntetycznie sposoby zapłonu mieszanki paliwowo-powietrznej w silnikach spalinowych wraz z charakterystyką ich kluczowych wad oraz zalet, problematyką ich stosowania oraz możliwością rozwoju. Dalszy rozwój tłokowych silników będzie wymagał drastycznego ograniczenia emisji szkodliwych składników spalin oraz dwutlenku węgla będącego najistotniejszym gazem cieplarnianym emitowanym przez silniki spalinowe. Z tego powodu zmianom muszą ulec nie tylko same silniki spalinowe, lecz także przede wszystkim stosowane paliwa. Aby były najskuteczniejsze, powinno się wykorzystywać samozapłon homogenicznej mieszanki paliwowo-powietrznej, co przy dzisiejszym stanie rozwoju technicznego nie jest możliwe w sposób pozwalający na realizację najbardziej zaawansowanych sposobów samozapłonu. W literaturze zagranicznej można znaleźć wiele publikacji dotyczących różnych sposobów zapłonu samoczynnego (ZS) w silnikach spalinowych, w tym zapłonu samoczynnego w silnikach dwupaliwowych. W literaturze krajowej nie ma jednak na ten temat wielu pozycji i choć można znaleźć prace dotyczące zapłonu samoczynnego w silnikach jednopaliwowych [1-10], to temat dwupaliwowego zasilania silników o ZS nie jest zbyt obszernie opisany. Z tego powodu godne uwagi wydaje się opublikowanie artykułu poruszającego ten istotny dziś temat.
The article presents synthetically the methods of ignition of the air-fuel mixture in Internal Com-bustion (IC) engines along with the characteristics of their advantages and disadvantages, the problems of their use and the possibility of development. The further development of piston engines will require a drastic reduction in the emission of harmful exhaust components and carbon dioxide, which is the most important greenhouse gas emitted by IC engines. For this reason, not only the engines themselves must be changed but fuels as well. For the most effective use of them, self-ignition of a homogeneous fuel-air mixture should be implemented. In the present state of technical development is not possible to widespread use the most ad-vanced ways of self-ignition methods. Typical homogeneous charge compression ignition (HCCI), where an engine uses only one type of the fuel and correctly self-ignite in the full scope of work is still not implemented in a serial production. In the foreign literature, there is a significant number of publications on various methods of Compression Igni-tion (CI) in IC engines, including IC in Dual Fuel (DF) engines. The Polish literature, however, is extremely sparse in this matter, and one can find a number of works on CI in single-fuel engines [1-10], but the topic of DF fueling is not too extensively described. For this reason, it seems important to publish an article on this important topic today
Źródło:
Biuletyn Wojskowej Akademii Technicznej; 2021, 70, 4; 15--58
1234-5865
Pojawia się w:
Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations of the working process in a dual-fuel low-emission combustion chamber for an FPSO gas turbine engine
Autorzy:
Serbin, Serhiy
Diasamidze, Badri
Dzida, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1585065.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
gas turbine engine
dual-fuel combustion
combustion chamber
liquid fuel
Opis:
This investigation is devoted to an analysis of the working process in a dual-fuel low-emission combustion chamber for a floating vessel’s gas turbine. The low-emission gas turbine combustion chamber with partial pre-mixing of fuel and air inside the outer and inner radial-axial swirlers was chosen as the object of research. When modelling processes in a dualflow low-emission gas turbine combustion chamber, a generalized method is used, based on the numerical solution of the system of conservation and transport equations for a multi-component chemically reactive turbulent system, taking into consideration nitrogen oxides formation. The Eddy-Dissipation-Concept model, which incorporates Arrhenius chemical kinetics in a turbulent flame, and the Discrete Phase Model describing the interfacial interaction are used in the investigation. The obtained results confirmed the possibility of organizing efficient combustion of distillate liquid fuel in a low-emission gas turbine combustion chamber operating on the principle of partial preliminary formation of a fuel-air mixture. Comparison of four methods of liquid fuel supply to the channels of radial-axial swirlers (centrifugal, axial, combined, and radial) revealed the advantages of the radial supply method, which are manifested in a decrease in the overall temperature field non-uniformity at the outlet and a decrease in nitrogen oxides emissions. The calculated concentrations of nitrogen oxides and carbon monoxide at the flame tube outlet for the radial method of fuel supply are 32 and 9.1 ppm, respectively. The results can be useful for further modification and improvement of the characteristics of dual-fuel gas turbine combustion chambers operating with both gaseous and liquid fuels.
Źródło:
Polish Maritime Research; 2020, 3; 89-99
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the uniqueness of the combustion process of the Perkins 1104D-E44TA engine in dual-fuel operation powered by natural gas and diesel fuel
Autorzy:
Kurczyński, Dariusz
Warianek, Michał
Łagowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/133745.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
dual-fuel
natural gas
combustion process
indicator diagram
uniqueness of combustion process
gazodiesel
gaz ziemny
proces spalania
wykres indykatorowy
niepowtarzalność procesu spalania
Opis:
The paper presents the results of the research on the uniqueness of the combustion process in the Perkins 1104D-E44TA engine already equipped with a Common Rail injection system, and then adapted on an engine test stand to dual-fuel operation. The result of the combustion process is an indicator diagram. The combustion process in the cylinder of the tested engine was evaluated by determining the uniqueness indicators of subsequent operating cycles, such as: the uniqueness indicator for the maximum pressure of the operating cycle, the uniqueness indicator for the mean indicated pressure, the uniqueness indicator for the indicated diagram and the uniqueness indicator for the partial indicator diagram. The conducted tests and the analysis of the results showed the impact of dual-fuel power supply of the tested engine on the combustion process, as compared to supplying the engine only with diesel fuel, for which it has been optimized.
Źródło:
Combustion Engines; 2019, 58, 2; 156-164
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combustion stability of dual fuel engine powered by diesel-ethanol fuels
Autorzy:
Nowak, Łukasz
Tutak, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/133775.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
combustion stability
heat release
dual fuel
ignition delay
combustion phases
stabilność spalania
wydzielanie ciepła
gazodiesel
opóźnienie zapłonu
fazy spalania
Opis:
The paper presents result of combustion stability assessment of dual fuel engine. The authors analyzed results of co-combustion of diesel fuel with alcohol in terms of combustion stability. The comparative analysis of both the operational parameters of the engine and the IMEP, as the parameters determining the stability of the combustion process, were carried out. It was analyzed, among others values of the COVIMEP coefficient, the spread of the maximum pressure value, the angle of the position of maximum pressure and the probability density distribution of the IMEP. The experimental investigation was conducted on 1-cylinder air cooled compression ignition engine. The test engine operated with constant rpm equal to 1500 rpm and constant angle of start of diesel fuel injection. The engine was operated with ethanol up to 50% of its energy fraction. The influence of ethanol on ignition delay time spread and end of combustion process was evaluated. It turns out that the share of ethanol does not adversely affect the stability of ignition.
Źródło:
Combustion Engines; 2019, 58, 3; 155-161
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on the effect of diesel fuel injection parameters on the exhaust emissions in the turbocharged CI engine operating on propane
Autorzy:
Luft, Sławomir
Skrzek, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/133561.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
combustion engines
dual fuel
propane
alternative fuels
air pollution
silniki spalinowe
gazodiesel
propan
paliwa alternatywne
zanieczyszczenie powietrza
Opis:
The article presents results of the studies on the charged, dual-fuel CI compression ignition engine fuelled with propane. The main goal of the studies was to fuel the engine so that the amount of energy provided with propane is possibly highest at the high efficiency, low emission of harmful exhaust constituents and proper combustion. As the studies conducted so far have shown, with the increase of energy from propane we observe crucial changes in the combustion process. As these changes may be a barrier in the further increase of energy, we decided to change the injection parameters of the diesel fuel. The changes introduced allowed for the 70% energetic contribution of gas fuel at the subsequent elimination of unfavourable phenomena. The fuel injection was realized divided into two doses. Both proportions and angle at the beginning of the injection for both doses were variable. The angle at the beginning of injection for the first dose was changed in a wide range and depended on the value of charging pressure. The angle at the beginning of injection for the second dose was changed in a much narrower range, mainly due to very clear changes in the nature of combustion process. The studies have been conducted for three values of charging pressure, namely 200; 400 and 600 [mbar], and also for the naturally aspirated version. Study results have been presented in a form of regulation characteristics for the angle of the beginning of injection of the pilot dose for the chosen charging variants, as well as volume and angle of the beginning of injection for the main dose. The obtained results show that the content of exhaust constituents for the dual-fuel CI engine depends highly on assumed regulations of injection parameters of the fuel dose initiating the ignition, as well as engine charging pressure.
Źródło:
Combustion Engines; 2019, 58, 2; 180-186
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania wpływu parametrów wtrysku oleju napędowego na emisję cząstek stałych w dwupaliwowym doładowanym silniku zasilanym gazem naturalnym
Research on the impact of diesel injection parameters on particulate matters emission in a dual-fuel supercharged engine fueled with natural gas
Autorzy:
Skrzek, T.
Jarzyński, G.
Powiązania:
https://bibliotekanauki.pl/articles/316253.pdf
Data publikacji:
2018
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
silnik dwupaliwowy
gaz naturalny
spalanie
dual fuel engine
natural gas
combustion
Opis:
W artykule zaprezentowane zostały wyniki badań dwupaliwowego, doładowanego silnika o zapłonie samoczynnym, zasilanego gazem naturalnym. Celem głównym prowadzonych badań było określenie wpływu parametrów wtrysku inicjującej zapłon dawki oleju napędowego tj.: wielkość oraz kąt początku wtrysku na emisję cząstek stałych. Badania wykazały, że przy stosowaniu podziału dawki oleju napędowego na dawkę pilotującą i główną, pomimo znaczącego (70%) udziału energetycznego paliwa gazowego w spalanej mieszaninie emisja cząstek stałych jest porównywalna a nawet większa od tej uzyskanej na paliwie standardowym. Wcześniejsze badania silnika dwupaliwowego wykazały, że istnieje wyraźna potrzeba stosowania podziału dawki oleju napędowego na dawkę pilotującą i dawkę główną. Podział ten w istotny sposób wpływa na przebieg wywiązywania się ciepła a zarazem stanowi skuteczną metodę redukcji maksymalnej szybkości narastania ciśnienia spalania, co pozwala na zwiększania udziału paliwa dodatkowego. Z punku widzenia emisji cząstek stałych podział taki nie jest korzystny. Uzyskane wyniki badań wskazują, że wielkości dawek pilotującej i głównej oraz ich kąt początku wtrysku w istotny sposób wpływają na warunki tworzenia się cząstek stałych.
The paper presents the results of research on dual-fuel, compression ignition engine, powered by natural gas. The main objective of the conducted research was to determine the impact of injection parameters initiating the ignition of a diesel oil dose, i.e.: the size and injection timing, on the emission of particulate matters. Studies have shown that when using a split of the diesel dose for the pilot and main dose, despite the significant (70%) share of natural gas in the mixture being combusted, the emission of particulate matters is comparable and even higher than that obtained on standard fuel. Previous studies of the dual-fuel engine showed that there is a clear need to divide the diesel dose into a pilot dose and the main dose. This division significantly affects the course of heat release, and at the same time is an effective method of reducing the maximum rate pressure rise, which allows increasing the share of gaseous fuel. From the point of view of particulate emissions, such division is counterproductive. The obtained results indicate that the values of pilot and main doses and their injection timing significantly affect the conditions of formation of particulate matters.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2018, 19, 12; 233-237
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on the effect of diesel fuel injection parameters on the combustion process in the turbocharged CI engine operating on propane
Autorzy:
Skrzek, T.
Powiązania:
https://bibliotekanauki.pl/articles/243309.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
combustion engines
dual fuel
propane
control of injection parameters
Opis:
Results presented in the article regard the research on a turbocharged dual-fuel CI engine operating on propane. The research indicated that such engine might operate even if 70% of the standard fuel energy is replaced by propane. The research indicated that at such high share of the gaseous fuel, there is necessary to adjust diesel fuel injection parameters but it is important that there is no need to change the engine structure. Injection parameters may be adjusted in a wide range due to the modern fuelling system of the common rail type. The investigated engine was equipped with such system. Adjustments regarding the fuel charge division, fuel charge quantities, and injection timing enabled to influence combustion in such way to obtain its specific parameters, i.e. maximum combustion pressure, rate of pressure rise, maximum pressure, and the burn out ratio similar to those obtained for diesel fuel operation. The obtained results were presented in form of adjustment characteristics of the injection timing of diesel fuel pilot dose for a few chosen values of the boost pressure as well as injection timing of the main dose. The investigations were carried out for three values of the boost pressure, i.e. 200; 400 and 600 [mbar] but also for the naturally aspirated version. Injection timing of the first dose varied in a broad range and depended on the boost pressure. Injection timing of the second dose varied in a narrower range, mainly due to considerable changes in the combustion process. The obtained results answered a number of questions regarding the strategy of selection of diesel fuel injection parameters taking into consideration engine performances as well as combustion at a high share of the gaseous fuel.
Źródło:
Journal of KONES; 2018, 25, 3; 419-429
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the boost pressure on basic operating parameters, exhaust emissions and combustion parameters in a dual-fuel compression ignition engine
Autorzy:
Luft, S.
Skrzek, T.
Powiązania:
https://bibliotekanauki.pl/articles/134017.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
dual-fuel engine
propane
turbocharging
combustion process
exhaust emission
silnik dwupaliwowy
propan
turbodoładowanie
proces spalania
emisja spalin
Opis:
The dual-fuel engine enables application of various fuels. One of such fuels is propane or its mixture with butane (LPG). Application of such fuels results in reduction of engine operation costs. The paper presents effect of application of such fuel in a turbocharged dual-fuel engine on basic operating parameters, exhaust emissions and basic combustion parameters. Test results in the form of load characteristics for various boost ratios obtained for dual-fuel engine were compared to corresponding results obtained for conventional engine operating on diesel fuel only. The obtained results indicate that it is possible a dual-fuel operation with the propane energy share of 70% for maximum engine loads.
Źródło:
Combustion Engines; 2017, 56, 3; 115-120
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydroxyl radicals as an indicator of knocking combustion in the dual-fuel compression-ignition engine
Autorzy:
Lasocki, J.
Orliński, P.
Wojs, M. K.
Owczuk, M.
Matuszewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/133881.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
knocking combustion
dual-fuel engine
radicals
hydroxyl radicals
spalanie stukowe
silnik dwupaliwowy
rodniki hydroksylowe
Opis:
The occurrence of knocking combustion is one of the basic problems of dual-fuel compression-ignition engines supplied with diesel oil and gaseous fuel. In order to detect this phenomenon and evaluate its intensity, several methods are commonly used, including the analysis of pressure of working medium in the combustion chamber of the engine or vibrations of certain engine components. This paper discusses the concept of using mass fraction of hydroxyl radicals as the indicator of the occurrence of knocking combustion. Current knowledge on the conditions of hydroxyl radical formation in the engine combustion chamber has been systematized and the results of research on this subject have been presented. Theoretical considerations are illustrated by exemplary results of simulation studies of the combustion process in a dual-fuel compression-ignition engine supplied with diesel oil and methane. The conclusions drawn may be useful for the development of dual-fuel engine control systems.
Źródło:
Combustion Engines; 2017, 56, 1; 178-185
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of the possibilities of increasing the share of propane in the fuel mixture supplied to a dual fuel diesel engine
Autorzy:
Skrzek, T.
Powiązania:
https://bibliotekanauki.pl/articles/132896.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
dual fuel
supercharged engine
propane
combustion process
exhaust emissions
silnik dwupaliwowy
silnik z doładowaniem
proces spalania
emisja spalin
Opis:
The paper presents the main reasons for the limitations as to the share of gaseous fuel in dual fueling in commercial engine applications. It also indicates the proposals of solutions aiming at increasing of the share of this fuel. The investigations were conducted in two stages. The first stage of the investigations involved gradual increase in the share of propane at a simultaneous phasing out of the amount of diesel fuel so that the excess air coefficient remained on the same level. The second stage of the investigations involved a maximum possible share of propane with a simultaneous adjustment of the diesel fuel injection parameters. The investigations were performed for three different values of the charging pressure: 200, 400, 600 mbar and for a naturally aspirated variant. The obtained results led to a conclusion that modifying diesel fuel injection parameters and increasing the charging pressure allow a significant increase in the share of gaseous fuel up to 70% of the total energy contained in both fuels.
Źródło:
Combustion Engines; 2017, 56, 2; 32-37
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
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