Wszystkie pola: fuels properties - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Experimental testing of influence of commercial depressants on diesel fuels low temperature properties
Autorzy:: Baczewski, K.
Szczawiński, P.
Kamińska, M.
Powiązania:: https://bibliotekanauki.pl/articles/243000.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: engine fuels
diesel fuel
low temperature properties
depressants
Opis:: The types and action mechanism of depressant additions, which improves the properties of diesel fuels in low temperatures, were presented. The results of a sixteen different depressants influence on cloud point (CP) and cold filter plugging point (CFPP) of diesel fuels ONA without additions are given in following elaborate. The depressants were applied to samples of diesel fuel in concentration between 500 and 5000 ppm. The present paper shows correlation of diesel fuels ONA CFPP and ΔCFPP depression between depressants concentration. Only a part from the tested depressant additions has a significant impact on diesel fuel cloud filter plugging point at concentration recommended by their manufacturers. Moreover, some of the additions do not decrease the CFPP value. The depressants can be divided into three groups by their effectiveness: first, the ones which decreases greatly the CFPP (from 3 to 11 degrees) by adding only small amount of them (500 ppm), second, with almost no influence on CFPP values in smaller amounts (500 ppm) but reducing CFPP values in larger quantities (to 5000 ppm), third, with no influence on diesel fuels ONA CFPP even in large concentration. In conclusion, lowering the CFPP value depends on the kind of depressant and its concentration in diesel fuel and not on the diesel hydrocarbon composition with addition up to 7% of Fatty Acid Methyl Ester (FAME).
Źródło:: Journal of KONES; 2015, 22, 1; 7-14
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Impact of the additives used in mineral jet fuels on the lubricating properties of synthetic fuels for turbine aircraft engines
Autorzy:: Dzięgielewski, W.
Kaźmierczak, U.
Kulczycki, A.
Ozimina, D.
Powiązania:: https://bibliotekanauki.pl/articles/245539.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: lubricity
fuels for turbine aircraft engines
synthetic components
additives
Opis:: Hydrocarbon containing synthetic fuels represent a promising alternative fuels. Despite different chemical compositions, their properties should be similar to properties of mineral fuels, as they are designed for the same drive units. The basic parameter related to the protection of the adequate service life of the power supply devices, including precision pairs, is lubricity. Lubricity depends on a number of factors, including these related to the chemical composition of fuel components and operating additives introduced into fuels in order to modify their properties. The preliminary results of research on the effect of additives: lubricating, anti-corrosion and anti-electrostatic once, on the lubricating properties of a synthetic fuel are shown in the paper. It was observed that there are relations between the content of additives and the dynamics of film formation. It is significant that this does not apply only to the lubricating additive, but also the additive, which protects the correct electrostatic balance by providing sufficiently high electrical conductivity of the fuel. This may indicate that the formation of a lubricating film remains in relation to the intensity of energy transport from the lubricated surface to the molecules of lubricating additives inside the film. The results shown in the paper preliminary confirm the hypothesis, that synthetic components of fuels change the concentration of ordered molecular structures (which are present in mineral part of fuels and which can be responsible for energy transport inside the lubricating film), what resulted in worse fuel ability to create protective film, and anti-electrostatic additive improves lubricity of blends of synthetic and mineral components.
Źródło:: Journal of KONES; 2018, 25, 2; 121-128
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Optical properties of fuels and lubricants vs. aquatic environment protection issues
Autorzy:: Otremba, Z.
Toczek, H.
Powiązania:: https://bibliotekanauki.pl/articles/247174.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: oil film
fuels
lubricants
aquatic environment protection
Opis:: Oils can be optically described by two parameters: light absorption coefficient and light refraction coefficient. Spectrum of absorption coefficient manifests itself in colour of oil, whereas spectrum of refraction coefficient impacts on both refractive and reflective properties of interface between oil and surroundings. Both spectra of absorption coefficient and refraction coefficient have distinctive slopes in ultraviolet edge of spectrum where values of mentioned coefficients decrease from extremely high in ultraviolet to relatively low in visual range. Possibility of perceiving of oil existing in the form of thin film or in the form of an emulsion depends on ambient light conditions and on mentioned optical properties. Additionally perceiving of oil depends on thickness of the oil film and on type of substrate on which oil is spread (water, metal etc.), as well as - if emulsion oil-in-water or water-in-oil is considered - on the droplets size distribution. The present paper begins with a review of optical properties of several oils. Next, an impact of changes of those properties on optical properties of an oil film (spread on water) as well as an impact of those properties on optical properties of oil-in-water emulsion is explained. Finally, exemplary results of numerical simulation of light transfer in marine environment (using above optical properties) - e.g. angular distributions of optical contrast of both sea areas clean and polluted by an oil-film are presented.
Źródło:: Journal of KONES; 2011, 18, 4; 325-330
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

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

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Technology of obtaining mixed alternative fuel based on organic substances for mining technological transport engines
Autorzy:: Melnyk, Vasyl
Romanyshyn, Liubomyr
Mosora, Yurii
Kotwica, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/27315590.pdf
Data publikacji:: 2023
Wydawca:: STE GROUP
Tematy:: technology
alternative fuel
equipment
mixer
improvement
operational properties of fuels
Opis:: In connection with the increase in the price of fuel based on hydrocarbons, the search and use of alternative types of fuel for machines in the mining and oil production industry is quite relevant today. Most of the existing alternative fuels by themselves cannot be considered as ready-to-use motor fuels. One of the ways to solve this problem is to use their mixtures with commercial fuels in certain ratios. This work deals with the development and research of the main characteristics of the mixer for obtaining mixed fuels based on diesel fuel and soybean oil, as well as the results of the study of the physical and operational properties of the obtained mixtures of different volume ratios of diesel fuel and soybean oil. The process of obtaining a mixed alternative fuel based on diesel fuel and soybean oil was implemented on a developed installation consisting of a mixer, the design of which is protected by a patent of Ukraine, and a gear pump. The study of the characteristics of the mixer as part of the installation showed that at a temperature of the components of the alternative fuel of 20°С, with a loss of full pressure on the mixer Δр ≈ (60-65) kPa, the volume consumption of soybean oil reached 10.7.10-6 m3/s. The time of preparation of the fuel mixture in the amount of 195 liters with a content of soybean oil of 10% ranged from 30 to 33 minutes. As research has shown, mixing soybean oil with diesel fuel in the amount of 5-50% vol. provides an improvement in viscosity-temperature properties and makes it possible to use such mixtures in diesel engines without changes in the design of the power supply system and regulation of fuel equipment, which characterizes soybean oil as a promising additive to diesel fuels to improve their technical and operational performance.
Źródło:: Management Systems in Production Engineering; 2023, 1 (31); 71--77
2299-0461
Pojawia się w:: Management Systems in Production Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: The effect of physicochemical properties of fuels on ecological parameters of a diesel engine
Autorzy:: Balawender, K.
Konieczny, D.
Kuszewski, H.
Lejda, K.
Lew, K.
Wojewoda, P.
Powiązania:: https://bibliotekanauki.pl/articles/133375.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: fuel properties
diesel engine
ecological parameters
właściwości paliw
silnik spalinowy
parametry ekologiczne
Opis:: The objective of the research results of which are presented in this paper was to determine the effect of selected physicochemical properties of fuels on ecological parameters of a diesel engine. Physicochemical parameters of fuel have a decisive effect on correct functioning, operating parameters, and cleanliness of the exhaust gas emitted to the environment by any combustion engine. Results of physicochemical studies can be useful in developing fuels blends of specific properties, whereas results obtained in the course of tests carried out on an engine test bench allow to optimize parameters of the fuel injection process with the aim to reduce emissions of toxic compounds to atmosphere.
Źródło:: Combustion Engines; 2017, 56, 4; 274-278
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: The Influence of Synthetic Hydrocarbon on Lubricating Properties of Fuels for Turbine Engines
Wpływ syntetycznych węglowodorów parafinowych na własności smarne paliw do silników lotniczych
Autorzy:: Kaźmierczak, Urszula W.
Kulczycki, Andrzej
Ozimina, Dariusz
Powiązania:: https://bibliotekanauki.pl/articles/2055624.pdf
Data publikacji:: 2021
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: aviation fuels
tribological wear
lubricity
process modeling
synthetic paraffin hydrocarbons
paliwa lotnicze
zużycie tribologiczne
smarność
modelowanie procesu
syntetyczne węglowodory parafinowe
Opis:: Recently, steps have been taken to introduce synthetic hydrocarbons to aviation fuels as biocomponents. This action is an innovative change in the approach to aviation fuels. This new approach to the assessment of fuel properties requires a revision of the existing criteria for their quality assessment, including those relating to tribological properties. In the requirements for Jet fuel, only the BOCLE test simulating continuous circular motion was used to assess lubricity. Research on the use of fuels containing components with highly differentiated chemical compositions indicate that the BOCLE test may be an insufficient criterion for assessing the lubricity of fuels for aircraft turbine engines. An additional HFRR test modelling the processes accompanying the reciprocating friction that occurs in some lubricated elements of the fuel system has been proposed. This article presents the results of BOCLE and HFRR tests on a range of Jet A1 fuel mixtures and various synthetic paraffin hydrocarbons. A preliminary analysis of the observed effect of synthetic hydrocarbons on the results of both tests is presented.
W ostatnim okresie podjęto działania zmierzające do wprowadzenia do paliw lotniczych węglowodorów syntetycznych jako biokomponentów. Działanie to ma charakter innowacyjnych zmian w podejściu do paliw lotniczych. To nowe podejście do oceny właściwości paliw wymaga rewizji dotychczasowych kryteriów ich oceny jakości, w tym odnoszących się do własności tribologicznych. W wymaganiach dla paliwa Jet dla oceny smarności stosowany był wyłącznie test BOCLE symulujący ruch ciągły po okręgu. Badania nad zastosowaniem paliw zawierających komponenty o silnie zróżnicowanym składzie chemicznym wskazują, że test BOCLE może być niewystarczającym kryterium oceny smarności paliw do turbinowych silników lotniczych. Zaproponowano dodatkowy test HFRR, modelujący procesy towarzyszące tarciu w ruchy posuwisto-zwrotnym, który występuje w niektórych smarowanych elementach układu paliwowego. W artykule zaprezentowano wyniki badań w testach BOCLE i HFRR gamy mieszanek paliwa Jet A1 i różnych syntetycznych węglowodorów parafinowych. Przedstawiono wstępną analizę zaobserwowanego wpływu syntetycznych węglowodorów na wyniki obu testów.
Źródło:: Tribologia; 2021, 296, 2; 21--28
0208-7774
Pojawia się w:: Tribologia
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: The influence of non-normative fuel on its operational properties
Autorzy:: Matuszewska, Anna
Owczuk, Marlena
Powiązania:: https://bibliotekanauki.pl/articles/133865.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: non-normative fuels
long-term storage
fuel aging
gasoline
paliwa nienormatywne
magazynowanie długoterminowe
starzenie paliw
benzyna
Opis:: Fuels that do not meet the requirements of quality standards cannot be used to power vehicle engines. The work involved physico-chemical analyses of non-normative fuel and its effect on the operational properties of the powered vehicle. The research fuels were two gasolines, characterized by a reduced resistance to oxidation processes due to their long-term storage. The results were compared to the properties of conventional fuels that met all normative requirements. The studies have shown that the fuel slightly deviating from the standard parameters does not noticeably affect the useful properties of the vehicle.
Źródło:: Combustion Engines; 2019, 58, 3; 67-70
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

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

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: The impact of fuel properties on shape of injected fuel spray
Wpływ właściwości paliw na kształt wtryskiwanej strugi
Autorzy:: Reksa, M.
Sroka, Z. J.
Powiązania:: https://bibliotekanauki.pl/articles/133250.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: internal combustion engine
fuels
research
silnik spalinowy
paliwa
badania
Opis:: The debate on alternative fuels includes quality of combustion process depends on the properties of these fuels. The physicochemical parameters of fuel determine besides other the shape of the fuel jet, which effects on creation of mixture with air. The paper proposes a simplified method for assessing the shape of injected fuel spray based on the analysis of digital photos taken with the ordinary camera. Differences in the core of spray, jet angle and the presence of fuel droplets were presented for three different fuels. The results, described only briefly in this paper, can be helpful during the fuel injector designing or to test the engines.
W dyskusji nad paliwami alternatywnymi przewija się zagadnienie jakości procesu spalania uzależnione od właściwości tych paliw. Parametry fizykochemiczne paliw decydują między innymi o kształcie strugi wtryskiwanego paliwa, co przenosi się na sposób tworzenia mieszaniny z powietrzem. W pracy zaproponowano uproszczoną metodę oceny kształtu strugi wtryskiwanego paliwa na podstawie analizy zdjęć wykonanych kamerą cyfrowego. Wykazano zróżnicowanie w rdzeniu strugi, kącie rozpylenia oraz obecności kropel paliwa dla trzech różnych paliw. Uzyskane wyniki, opisane tylko skrótowo w niniejszej pracy, mogą być pomocne na etapie konstruowania wtryskiwaczy lub podczas badań silnikowych.
Źródło:: Combustion Engines; 2013, 52, 3; 806-810
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Toxicological and ecotoxicological properties of an iron based combustion modifier for liquid fuels
Własności toksykologiczne i ekotoksykologiczne modyfikatora żelazowego spalania paliw ciekłych
Autorzy:: Guziałowska-Tic, J.
Tic, W. J.
Powiązania:: https://bibliotekanauki.pl/articles/389460.pdf
Data publikacji:: 2015
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: fuel modifiers
toxicology
ecotoxicology
combustion
liquid fuels
modyfikatory paliw
toksykologia
ekotoksykologia
spalanie
paliwa ciekłe
Opis:: It is necessary to use specific modifiers in order to reduce harmful emissions arising in the combustion of liquid fuels into the atmosphere. Such modifiers include organic metal salts which are soluble in fuels and tend to form metal oxides under combustion process conditions, improving the oxidizing properties of fuels. The modifier, described in this paper was used in liquid fuel combustion tests, showing a desirable effect of reducing CO, NOx and hydrocarbon emissions. For such modifiers to be approved for use, examination of their physico-chemical, toxicological and ecotoxicological properties is required according to REACH Regulation. REACH is intended, first of all, to provide appropriate protection to the environment and human health, while striving to maintain competitiveness of European enterprises in the global market. Discussed in this paper are the results of selected tests of the effect of an iron-based modifier for liquid fuels on human health and on the land and air and the aquatic environment. The modifier was subjected to physico-chemical analyses, and toxicological and ecotoxicological tests in accordance with good laboratory practice and OECD guidelines. The test results indicate that the modifier is a safe substance, posing no hazard to human health or the environment.
W celu ograniczenia emisji szkodliwych produktów spalania paliw ciekłych do atmosfery występuje konieczność stosowania specyficznych modyfikatorów. Jednym z rodzajów są rozpuszczalne w paliwie organiczne sole metali, które w warunkach procesu spalania tworzą tlenki metali poprawiające własności utleniające paliw. Opisany modyfikator zastosowany został w testach spalania paliwa ciekłego, gdzie wykazał korzystny wpływ w ograniczeniu emisji węglowodorów, CO i NOx. Dopuszczenie do stosowania wyżej wymienionych modyfikatorów wymaga określenia ich własności fizykochemicznych, toksykologicznych i ekotoksykologicznych w ramach rozporządzenia REACH. Najważniejszym celem tego rozporządzenia jest zapewnienie właściwej ochrony zdrowia ludzkiego i środowiska, przy jednoczesnym dążeniu do zachowania konkurencyjności europejskich przedsiębiorstw na światowym rynku. W pracy przedstawiono wyniki wybranych badań wpływu na zdrowie człowieka oraz na środowisko wodne, lądowe i powietrzne modyfikatora żelazowego do paliw ciekłych. Badania fizykochemiczne, toksykologiczne i ekotoksykologiczne tego dodatku wykonane zostały zgodnie z dobrą praktyką laboratoryjną oraz wytycznymi OECD. Na podstawie uzyskanych wyników badań stwierdzono, iż badany modyfikator jest substancją bezpieczną i niestanowiącą zagrożenia dla zdrowia człowieka oraz środowiska.
Źródło:: Ecological Chemistry and Engineering. A; 2015, 22, 2; 161-173
1898-6188
2084-4530
Pojawia się w:: Ecological Chemistry and Engineering. A
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Detonation Properties of Mixtures of Ammonium Nitrate Based Fertilizers and Fuels
Autorzy:: Buczkowski, D.
Zygmunt, B.
Powiązania:: https://bibliotekanauki.pl/articles/358466.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: ammonium nitrate based fertilizers
detonation properties
illicit use explosives
Opis:: Detonation properties of mixtures of milled ammonium nitrate based fertilizers and fuels - aluminium or mineral oil - have been determined. The fertilizers used were ammonium nitrate and its compositions with mineral meal; for some compositions additional amount of mineral meal was mixed with the fertilizer. Detonation velocity, Guerney's energy and limits of detonability of such mixtures have been measured. It was examined that mixtures of mineral oil and fertilizers containing over 20% of mineral meal detonated during the tests. Mixtures of aluminium and fertilizers detonated even if concentration of mineral meal in the fertilizers was 40%.
Źródło:: Central European Journal of Energetic Materials; 2011, 8, 2; 99-106
1733-7178
Pojawia się w:: Central European Journal of Energetic Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Investigation properties of rapeseed oil methyl esters/aviation turbine fuel Jet A-1 blends
Autorzy:: Baczewski, K.
Szczawiński, P.
Powiązania:: https://bibliotekanauki.pl/articles/243725.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: biodiesel
rapeseed oil methylester (RME)
aviation fuels
kinematic viscosity
low-temperature properties
Opis:: The properties of rapeseed methyl ester (RME) and commercial biodiesel (B100) blends with aviation turbine fuel Jet A-1 were investigated. The RME (without improving additives) and B100 (with improving additives – including antioxidants and depressants) were blend with Jet A-1 fuel, to made six mixtures containing: 10 per cent, 20 per cent , 30 per cent, 40 per cent, 50 per cent and 60 per cent Jet A-1 by volume. Their blends were stable. Jet A-1 fuel and RME (B100) blends properties are indirect between Jet A-1 and RME properties. The density, kinematic viscosity at 40 centigrade, cloud point (CP), cold filter plugging point (CFPP) and pour point (PP) RME, B100, Jet A-1 and their blends were measured. Adding the Jet A-1 fuel to the RME and B100 can be the method to improve its low temperature properties. The empirical equations for calculation the density, kinematic viscosity at 40 centigrade, cloud point, cold filter plugging point and pour point RME (B100) blends with Jet A-1 fuel as a function of composition for predicting the properties of RME (B100) blends with aviation turbine fuel Jet A-1 give values in good agreement with experiments. There is good agreement between experimental viscosity data of blends with viscosity calculated with mixture equation by Arrhenius.
Źródło:: Journal of KONES; 2011, 18, 1; 15-22
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Methodology for determining the elemental composition, as well as energy and ignition properties of the low-sulfur marine fuels
Autorzy:: Korczewski, Zbigniew
Powiązania:: https://bibliotekanauki.pl/articles/2097552.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: marine low-sulfur fuels
laboratory tests
examination means
examination methods
niskosiarkowe paliwa żeglugowe
badania laboratoryjne
środki badawcze
metody badawcze
Opis:: The key metrological issue of substance and energy balance in research engines is the precise determination of the elemental composition of the applied fuel and its net calorific value. This makes it possible to calculate the amount of heat brought with the fuel into the combustion chamber, as well as the amount and gas composition of the exhaust. However, to fully assess the energy quality of the fuel used, its ignition properties should also be estimated. They determine the combustion kinetics and, consequently, the course of gas pressure alterations and heat release in the cylinder, which have a direct impact on the indicated power and thermal efficiency of the engine. This article presents the methodology for carrying out this type of laboratory tests and their representative results concerning six different low-sulfur marine fuels used to feed marine engines at present. The considerations focus mainly on measurement technology, as well as the measuring apparatus applied today. Additionally some existing metrological difficulties that might be met were shortly described. The laboratory tests in question stand for the first stage of the program of testing a new kind of low-sulfur marine fuels in real operating conditions of a diesel engine, which was carried out at the Department of Ship Power Plants of the Gdańsk University of Technology.
Źródło:: Combustion Engines; 2021, 60, 3; 96--102
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Effect of LPG gas fuel injectors on the properties of low emission vehicles
Autorzy:: Majerczyk, A.
Radzimirski, S.
Powiązania:: https://bibliotekanauki.pl/articles/241843.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: road transport
liquid fuels
LPG
combustion engines
air pollution
environmental protection
Opis:: Modern spark-ignition engines used for the propulsion of low emission vehicles are fuelled by injection systems in which the fuel is individually metered to each cylinder by a single injector (multipoint injection). For the proper engine operation, it is necessary that the injectors are similar to each other and stable in respect of the fuel dosage during the whole engine operation. This requirement is satisfactorily met by petrol injectors used by OEM. In contrast to petrol injectors, gas injector used in LPG-fuelled vehicles, in particular for the retrofit, are still in the development phase and therefore their quality and production consistency are often regarded as unsatisfactory from the standpoint of view of the proper engine operation. The injector-to-injector variation in the fuel dosage results in air-fuel mixture maldistribution in the cylinders, which, in turn, affects vehicle emission characteristics. The paper presents results of an investigation of inconsistency of gas injectors used in LPG vehicles in respect of their dosage. The method of measurement of the dosage uniformity is described. On the basis of the measurement, three sets of injectors differing in respect of injector-to-injector variation were selected for further vehicle tests. Tests were conducted on a passenger Euro 4 car. The emissions of limited pollutants were measured over the NEDC type-approval cycle and cycle's representative for the real world driving under Polish driving conditions. The paper presents results of the conducted tests and discusses the effect of injector-to-injector variation on the pollutant emissions.
Źródło:: Journal of KONES; 2012, 19, 4; 401-410
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "fuels properties" wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język