Temat: diesel fuels - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An effect of physical and chemical properties of commercial diesel fuels on engine parameters
Autorzy:: Sroka, Z. J.
Reksa, M.
Kułażyński, M.
Powiązania:: https://bibliotekanauki.pl/articles/242752.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
diesel engine
engine fuels engine performances
Opis:: This paper is focused on problem of quality of diesel commercial fuels in Polish market and an effect of their properties as well on engine parameters as environment The academic staff from Wrocław University of Technology put the own experience to the huge discussion by making research in the Wroclaw-city, where some probes of fuels were taken from six different commercial fuel stations. Chemical and physical properties of fuels were checked. A real diesel engine VW 1,9 TDI was investigated in university lab of Division of Motor Vehicles and Internal Combustion Engines. Typical engine performances were built including power, torque, fuel consumption, toxicity levels due to different fuels. The IC engine on the test bench, oxygen content in fuels, example of full load performance of VW1,9 TDI for fuel Bio D20-type, differences of mean effective pressure for different fuels, differences of carbon monoxide in exhaust for different fuels, differences of nitric oxides in exhaust for different fuels, differences of smog level in exhaust for different fuels, differences of heat release for different fuels, relation between engine torque and oxygen content in fuels vs. engine rotation are presented in the paper.
Źródło:: Journal of KONES; 2007, 14, 4; 447-452
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Experimental investigation of the combustion of vegetable oils in diesel engine at low engine loads
Autorzy:: Błažek, J.
Vojtišek, M.
Powiązania:: https://bibliotekanauki.pl/articles/243132.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: vegetable oils
diesel fuels
in-cylinderpressure measurement system
combustion engines
emissions
Opis:: Vegetable oils are being increasingly used as fuel in diesel engines in passenger vehicles, with various results. One of the associated problems is excessive emissions of organic compounds at very low engine loads. Aside from an undesirable increase in emissions, such compounds also contribute to the formation of deposits in the engine and in the catalytic reactor. In this study, a typical turbodiesel engine, adapted for operation on vegetable oils, was fitted with fast-response in-cylinder pressure measurement system. The engine was operated on an engine dynamometer at low loads typical for urban driving at several coolant and fuel temperatures. Results will be presented and discussed. Engine and rapeseed oil fuelling system setup, comparison of combustion timing of diesel fuel and rapeseed oil, indicated in-cylinder pressure for diesel fuel and rapeseed oil for different speeds and loads, indicated in-cylinder pressure at original and modified injection timing, comparison of nox and CO2 concentrations at original injection timing, emissions from rapeseed oil relative to diesel fuel at different speeds and loads, effect of injection timing optimization on peak indicated pressure, effect of injection timing optimization on nox and CO concentrations, Brake-specific fuel consumption, are presented in the paper.
Źródło:: Journal of KONES; 2007, 14, 3; 61-72
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Investigation of impacting of aging processes on properties of biodiesel
Badanie wpływu procesów starzenia na zmianę właściwości biodiesla
Autorzy:: Baczewski, K.
Szczawiński, P.
Powiązania:: https://bibliotekanauki.pl/articles/243169.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: silniki spalinowe
paliwa alternatywne
starzenie
biodiesel
estry metylowe oleju rzepakowego (RME)
oleje napędowe
parametry niskotemperaturowe
combustion engines
alternative fuels
aging processes
Rapeseed Oil Methylesters (RME)
diesel fuels
low-temperature parameters
Opis:: W pracy przedstawiono wyniki badań laboratoryjnych procesów starzenia biopaliw (biodiesla), takich jak estry metylowe oleju rzepakowego (RME) i ich mieszanin z bazowym hydrorafinowanym olejem napędowym (HON). Określono wpływ powietrza, światła słonecznego, oddziaływania ciepła i obecności wody na zmianę liczby kwasowej, lepkości kinematycznej i parametrów niskotemperaturowych paliw (temperatury mętnienia, temperatury zablokowania zimnego filtru i temperatury płynięcia). Schemat starzenia próbek paliw, wpływ czasu i warunków starzenia na zmianę liczby kwasowej próbek badanych paliw, temperatura zablokowania zimnego filtru TZZF próbek paliw starzonych w różnych warunkach w ciągu 60 tygodni są zilustrowane w artykule. Stwierdzono, że najbardziej podatny na starzenie były estry metylowe oleju rzepakowego (RME) i bazowy hydrorafinowany olej napędowy. W rezultacie starzenia następuje bardzo duży przyrost liczby kwasowej, małe zmiany lepkości kinematycznej i bardzo małe zmiany parametrów niskotemperaturowych (temperatury mętnienia, temperatury zablokowania zimnego filtru i temperatury płynięcia) estrów metylowych oleju rzepakowego (RME). Najintensywniejsze starzenie estrów metylowych oleju rzepakowego (RME) powodują wymuszenia cieplne. Obecność wody intensyfikuje starzenie estrów metylowych oleju rzepakowego (RME), szczególnie przy długim czasie kontaktu.
The paper presents the results of laboratory investigations of aging processes of the biodiesel such as rapeseed oil methylesters (RME) and their blends with hydrofining based diesel fuels. The influence of air, light, elevated temperature and the presence of water on the total acid number, kinematic viscosity at 40°C and low-temperature parameters (Cloud Point, Cold Filter Plugging Point and Pour Point) of the fuels was determined. The aging of fuel samples, acid number as a function of time and conditions of aging for evaluated samples of fuels, and Cold Filter Plugging Point (CFPP) of fuel samples aging at different conditions during 60 weeks are illustrated in the paper. The least resistance to aging of rapeseed oil methylesters (RME) and hydrofining based diesel fuel was obtained. The aging influence dramatic increase in total acid number, little changes of the kinematic viscosity at 40°C and least changes of low-temperature parameters (Cloud Point, Cold Filter Plugging Point and Pour Point) of rapeseed oil methylesters (RME). The elevated temperature causes the largest impact on aging of rapeseed oil methylesters(RME). The aging of rapeseed oil methylesters (RME) is intensified in presence of water especially for long time of contact.
Źródło:: Journal of KONES; 2007, 14, 2; 27-34
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Thermal loads of engines for different properties of commercial fuels
Autorzy:: Sroka, Z. J.
Reksa, M.
Miksiewicz, K.
Powiązania:: https://bibliotekanauki.pl/articles/243852.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel engine
thermal loads
fuels
Opis:: It is oblivious, various properties of fuels cause different thermal loads of engines. Question is, how big is this effect and what fuel compound and its property play insignificant part. This paper is focused on problem of quality of diesel commercial fuels in Polish market and it is a challenge to find answer for question mentioned above. The academic staff from Wroclaw University of Technology organized tests with different commercial fuels. Chemical and physical properties of these fuels were studied and used for investigation to define relationships between them and thermal load during simulation process. All researches were done in the lab of Division of Motor Vehicles and Internal Combustion Engines at the Wroclaw University of Technology. Tests have showed differences in chemical and physical properties of fuels, but there is no statistics effect on engine parameters. Results have not also pointed any important differences in thermal loads of engine VW1,9 TDI and its components according to different physical and chemical properties of tested fuels. It is probably because there are differences of calorific values from one side but from other hands various density and specific fuel consumption compensated these differences. To burn unit of fuel contains higher level of oxygen, engine needs lower amount of air, so it gives, for the same fuelling system, lean mixture. It causes higher temperature of exhaust gases and a bit higher exhaust losses
Źródło:: Journal of KONES; 2008, 15, 2; 463-467
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Transestrification of biofuel, yes but why?
Autorzy:: Sitnik, L. J.
Powiązania:: https://bibliotekanauki.pl/articles/242003.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
diesel engines
fuels
alternative fuels
biofuel
Opis:: This paper presents a novel way of utilizing alcohols as fuels for a diesel engine. It is proposed to use heavy alcohols as a mix with vegetable oils and conventional diesel fuel. It is presented the another way to use alcohols. Namely, the use of heavy alcohols as a solvent for vegetable oil (named the biomix or BM) and after the obtainment of the thickness, which would be approximate to diesel fuel, mixing the biomix with diesel fuel to obtained biomix diesel (BMD). This solution will be shown for example with butanol as heavy alcohol, rape oil as vegetable oil and conventional diesel fuel. The investigations are carried out with a simple diesel engine on the engine test bed. Main parameters of engine (power output, torque, specifically fuel consumption) and the main exhaust gas component (in this case CO, NOx, PM) will be investigated. There were better results achieved than one expected. Opposed to existing experiences, the maximum of power output and the torque of engine are higher in the whole range of the rotatory speed of the engine crankshaft when the engine biomix diesel (BMD) is reinforced. The addition of the component biomix to fuel influences the specific fuel consumption. Generally with the larger part of the component biomix the specific fuel consumption grows. Because the power of engine also grows up one should expect that in exploitation the specific fuel consumption should not increase. Transestrification process in the proposed solution does not appear. This has large economic meaning. The investment amount (the transestrification plant) is not necessary. The power consumption to get fuel is lower. Vegetable oils are fully used (glycerine is not produced). BMD has stable parameters. The usage of existing infrastructure to this transportation is enough. Very important is that this fuel could be used to reinforce old, existing now and the future diesel engines. The production of butanol is known. It will be interesting to use for the production an electrolysis process, especially in the proposed new plant where the electrolysis process is connected with the process to get the electrical energy from byproducts of electrolysis (i.e. hydrogen and oxygen) in the fuel cell. It seems to be more efficient. The possibility to get butanol from ethanol gives a very good perspective for the use of ethanol from today's overproduction and moreover without the essential change of infrastructure.
Źródło:: Journal of KONES; 2008, 15, 4; 537-544
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Preliminary research of the diesel knock phenomenon with using of the crankshaft acceleration method
Autorzy:: Górski, K.
Lotko, W.
Powiązania:: https://bibliotekanauki.pl/articles/242350.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel knock
transient conditions
combustion process
acceleration method
wavelet transform
alternative fuels
Opis:: Paper presents an experimental study on the pressure variations inside of 3 - cylinder, a direct injection AD3.152 type diesel engine. The main aim of the preliminary engine test was to use of the crankshaft free acceleration method for detection of diesel knock phenomenon. For this research, each combustion chamber was equipped with AVL cooled pressure sensor mountedat the top of engine head. Using of such sensors and special prepared at Technical University of Radom data acquisition system allow to record time histories of in-cylinder pressure variations at conditions of free acceleration of the engine crankshaft. Results presented in this paper show, that such transient engine conditions can be successfully used for detection of diesel knock phenomenon. High frequency pressure oscillations, typical for knocking were observed in the first phase of the acceleration process for selected combustion chambers. Experimental tests have been done for engine fuelled with regular diesel oil (DF) and its blend with Ethyl Tert Butyl Ether (ETBE) used as an oxygenated additive. Engine test procedure, used methodology and data acquisition system and engine test results carried out in non-stationary conditions with using of crankshaft acceleration method are presented in the paper.
Źródło:: Journal of KONES; 2009, 16, 2; 141-148
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The application of non-converted vegetable oils in contemporary self-ignition engines
Autorzy:: Reksa, M.
Powiązania:: https://bibliotekanauki.pl/articles/245366.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
vegetable oils
diesel engine
alternative fuels
Opis:: The paper presents a test of a self-ignition engine equipped with high-pressure fuel-dosing system based on injection units with electronic control system. The engine was fuelled with conventional fuel and few kinds of non-converted vegetable oil. The analysis of the experiment results correlated with knowledge of their properties shows the important conclusions about possibilities, disadvantages and perspectives of the fuels usage in contemporary engines equipped with electronic control fuel-dosing system. The vegetable oils have a special place in history of automotive industry. In 1900 a great event on Word Trades in Paris was compression-ignition engine fuelled by groundnuts oil — a masterpiece of no one else like Rudolf Diesel. R. Diesel, aware of conventional fuels limitation, patented in 1892 a vegetable oil as a fuel. The NOx concentration in exhaust was measuredfor maximum engine speed (1900 rpm). The lowest emission ofmeasured compounds was observed in case of sunflower oil and rape oil "Biedronka" (65% and 75% of emission during engine work fuelled by conventional diesel oil). The highest values were detected for post frying palm oil and rape oil "Aldi" (120% of emission during engine work fuelled by conventional diesel oil).
Źródło:: Journal of KONES; 2009, 16, 4; 385-391
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Badania zużycia elementów układu wtryskowego silnika o zapłonie samoczynnym zasilanego paliwami roślinnymi
Investigation of wear of injection system components in diesel engine fueled with vegetable fuels
Autorzy:: Gil, L.
Ignaciuk, P.
Niewczas, A.
Powiązania:: https://bibliotekanauki.pl/articles/347804.pdf
Data publikacji:: 2010
Wydawca:: Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:: zużycie tribologiczne
aparatura wtryskowa
silnik spalinowy
paliwa roślinne
właściwości tribologiczne
tribological wear
injection system
diesel engine
vegetable fuels
tribological properties
Opis:: W artykule przedstawiono wyniki stanowiskowych badań zużycia tribologicznego sekcji tłoczących rzędowych pomp wtryskowych. Przeanalizowano charakter uszkodzeń zużyciowych tłoczka sekcji przy zasilaniu pompy wtryskowej standardowym olejem napędowym oraz biopaliwem na bazie estrów oleju lnianki. Badania przeprowadzono na pompach wtryskowych firmy MOTORPAL wykorzystywanych w silniku 4CT90.
The paper presents the results of test-stand experiments of the pumping sections of the in-line injection pumps. The analysis included damage of the piston occurring when the pump was supplied with regular diesel fuel and methyl esters of linseed dodder. The research was conducted with MOTORPAL injection pumps used in the 4CT90 diesel automotive engine.
Źródło:: Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2010, 4; 100-108
1731-8157
Pojawia się w:: Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Budowa stanowiska do generowania i analizy spalin z wysokoprężnego silnika Diesla
Diesel exhaust fumes generation and analysis : a new measurement setup
Autorzy:: Penconek, A.
Moskal, A.
Powiązania:: https://bibliotekanauki.pl/articles/2071043.pdf
Data publikacji:: 2010
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: biopaliwa
olej napędowy
diesel
spaliny
biodiesel fuels
diesel oil
exhaust fumes
Opis:: Budowane stanowisko do generowania i analizy spalin umożliwia porównanie zanieczyszczeń powstających w czasie pracy silnika na oleju napędowym, biopaliwie czy nawet zwykłym oleju roślinnym. Uzyskane wyniki wskazują na znaczący wpływ warunków w jakich pracuje silnik na skład frakcji gazowej spalin, ze znaczącą różnicą w emisji CO dla zimnego i ciepłego silnika. Jednocześnie budowane stanowisko posłuży w przyszłości do badania wpływu spalin z silnika Diesla na drogi oddechowe człowieka.
Exhaust fumes from biodiesel fuel, diesel oil or even vegetable oil can be generated, analyzed and compared using a newly built measurement setup. Emissions were strongly dependent on working engine parameters, especially temperature played here an important role. The main difference was manifested in carbon monoxide concentration. Simultaneously, the new setup might be used in future to study the impact of Diesel exhaust on human airways.
Źródło:: Inżynieria i Aparatura Chemiczna; 2010, 1; 83-84
0368-0827
Pojawia się w:: Inżynieria i Aparatura Chemiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Optimization of injection pressure for fuel consumption and exhaust emissions in a dimethyl ether (DME) engine with a common rail type injection system
Autorzy:: Yanai, T.
Konno, M.
Sato, Y.
Oikawa, H.
Nozaki, S.
Powiązania:: https://bibliotekanauki.pl/articles/247403.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel engines
alternative fuels
DME
common rail
injection pressure
fuel consumption
emissions
Źródło:: Journal of KONES; 2010, 17, 2; 511-518
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

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

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Skocz do pozycji: 12.

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

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Skocz do pozycji: 13.

Tytuł:: Ewolucja stosowania paliwa gazowego do napędu pojazdów samochodowych i związane z tym zagrożenia dla użytkownika
Evolution of using gas fuel for motor cars and accompanying dangers for users
Autorzy:: Zgodziński, T.
Powiązania:: https://bibliotekanauki.pl/articles/373500.pdf
Data publikacji:: 2012
Wydawca:: Centrum Naukowo-Badawcze Ochrony Przeciwpożarowej im. Józefa Tuliszkowskiego
Tematy:: alternatywne paliwa napędowe
motoryzacja
pożary i zagrożenia
ratownictwo techniczne
samochody
alternative diesel fuels
cars
fires and dangers
motorization
road rescue
Opis:: W artykule przedstawiono historię paliwa gazowego oraz samochodowych instalacji gazowych zasilanych LPG (gazem propan - butan) oraz CNG (gazem ziemnym), wykorzystywanym jako alternatywne paliwo napędowe w motoryzacji. Ponadto w artykule zawarto podstawowe dane na temat budowy, właściwości gazu oraz elementów składowych instalacji gazowych służących do zasilania pojazdów samochodowych. Przedstawione zostały również podstawowe źródła zagrożeń związane z budową, konstrukcją oraz eksploatacją samochodów wyposażonych w gazowe układy zasilania, będące przyczyną wypadków lub pożarów w trakcie użytkowania pojazdu zasilanego alternatywnym paliwem gazowym. W oparciu o przedstawione źródła zagrożeń występujące podczas użytkowania samochodu wyposażonego w gazowy układ zasilania przedstawiono podstawowe sposoby postępowania w przypadku powstania ewentualnego zagrożenia.
In the article there was presented a history of gas fuel and gas installations in cars running on LPG (Liquefied Petroleum Gas) and CNG (Natural Gas) used as alternative diesel fuel in motorization. In the article there were also discussed basic data concerning the construction, gas properties and the components of gas installations used for powering motor vehicles. The article presented main sources of danger connected with building, construction and operating cars equipped with gas supply system and resulting accidents of fires during operating cars running on alternative gas fuel. Based on the sources of dangers taking place during operating cars equipped with gas supply system there were presented main procedures in case of potential danger.
Źródło:: Bezpieczeństwo i Technika Pożarnicza; 2012, 2; 53-66
1895-8443
Pojawia się w:: Bezpieczeństwo i Technika Pożarnicza
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Optical investigations of alternative fuel combustion in common rail compression ignition engine
Autorzy:: Merola, S. S.
Tornatore, C.
Valentino, G.
Marchitto, L.
Powiązania:: https://bibliotekanauki.pl/articles/246752.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: optical diagnostics
alternative fuels
diesel fuel (DF)
common rail
compression ignition engine
Opis:: The increasing global energy demand and the decreasing fossil-energy resources are enhancing the interest in the combustion characteristics of alternative fuels for diesel engines. Alternative-fuel combustion has been studied in detail in light-duty diesel engines, even if the comparison of test results from different chemical nature fuels obtained by integrated optical methodologies is lacking. Thus, it is the primary objective of the present study to characterize the combustion of selected alternative fuels in an optical common rail compression ignition engine by high-speed luminescence imaging and natural emission spectroscopy. The effects of the fuels on in-cylinder spray combustion and soot formation were investigated through UV-visible digital imaging and natural emission spectroscopy. Experiments were performed in a single cylinder high swirl compression ignition engine. The test engine was optically accessible and equipped with a common rail multi-jets injection system. Several injection pressures and timings at two EGR rates were tested. Digital imaging allowed characterizing the evaporating spray and the combustion process. UV-visible emission spectroscopy was used to follow the evolution of the combustion process chemical markers. Chemiluminescence signal due to OH was identified. The soot spectral feature in the visible wavelength range was correlated to soot engine out emissions. Conventional and optical data related to diesel fuel blended with gasoline and butanol were compared.
Źródło:: Journal of KONES; 2012, 19, 3; 279-288
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Tytuł:: A comparative study on environmental emissions and performance of a stationary type diesel engine fuelled with biodiesels derived from two different feedstocks
Autorzy:: Sairam, K.
Gopinath, A.
Velraj, R.
Powiązania:: https://bibliotekanauki.pl/articles/207424.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: biodiesel
biopaliwo
silniki wysokoprężne
oleje napędowe
paliwa
tlenki azotu
emisja tlenku węgla
silniki Diesla o wtrysku bezpośrednim
zanieczyszczenie środowiska
emisja tlenków azotu
sprawność cieplna
biodiesel fuel
carbon monoxide
diesel engines
diesel fuels
fuels
nitrogen oxides
carbon monoxide emission
direct injection diesel engines
environmental emissions
nitrogen oxides emission
thermal efficiency
Opis:: The objective of the present study was to experimentally investigate environmental emissions and performance of a stationary type diesel engine fuelled with biodiesels derived from two different feedstocks; one is more unsaturated (rice bran biodiesel) and the other one is more saturated in nature (palm biodiesel) and compare with petrodiesel. Tests were conducted in a single cylinder, air cooled, direct injection diesel engine. From the experimental results, it was found that the nitrogen oxides emissions were higher with biodiesel fuels. The hydrocarbon and carbon monoxide emissions of palm biodiesel were lower than the other test fuels. The smoke emission of rice bran biodiesel was the lowest compared to the rest of the fuels. A considerable reduction in thermal efficiency was found with both the biodiesels when compared to diesel. From the present study, it is concluded that the biodiesels derived from palm and rice bran oils with their different fatty acid composition, show lower exhaust emissions and closer performance characteristics to diesel.
Źródło:: Environment Protection Engineering; 2013, 39, 4; 113-124
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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