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Wyszukujesz frazę "fuel lubricity" wg kryterium: Temat

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    Wyświetlanie 1-2 z 2
    Tytuł:
    Tribological study of high-pressure fuel pump operating with ethanol-diesel fuel blends
    Autorzy:
    Labeckas, Gvidonas
    Slavinskas, Stasys
    Mickevicius, Tomas
    Kreivaitis, Raimondas
    Powiązania:
    https://bibliotekanauki.pl/articles/134053.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    diesel fuel
    ethanol-diesel fuel blends
    lubricity
    four ball test rig
    plunger-barrel units
    wear scar diameter
    olej napędowy
    mieszanina oleju napędowego i etanolu
    smarność
    aparat czterokulowy
    układ tłok-tuleja
    średnica śladu zużycia
    Opis:
    This paper presents comparative experimental study’s results of ethanol-diesel fuel blends made effects on operational properties of a high-pressure fuel pump of a common rail injection system. The two identical fuel injection systems mounted on a test bed of the fuel injection pumps were prepared for the experimental durability tests. The lubricity properties of ethanol-diesel fuel blends E10 and E20 blends were studied using a four-ball tribometer. The test results showed that long-term (about 100 hours) using of ethanol-diesel blends produced a negative effect on the durability of the high-pressure fuel pump. Due to the wear of plunger-barrel units the decrease in the fuel delivery rate occurred of about 39% after the 100 h of continuous operation with ethanol-diesel fuel blends. The average friction coefficients of ethanol-diesel fuel blend E10 was lower than that of the normal diesel fuel. After the 100 hours of operation with ethanoldiesel fuel blend E10, the measured wear scar diameter was 10% higher than that of a fossil diesel fuel.
    Źródło:
    Combustion Engines; 2019, 58, 2; 132-135
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental investigation biodiesel-n-butanol fuels blends on performance and emissions in the diesel engine
    Autorzy:
    Labeckas, Gvidonas
    Slavinskas, Stasys
    Mickevičius, Tomas
    Powiązania:
    https://bibliotekanauki.pl/articles/2097621.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    diesel engine
    biodiesel
    n-butanol
    lubricity
    brake specific fuel consumption
    engine efficiency
    emissions
    smoke opacity
    silnik diesla
    smarność
    jednostkowe zużycie paliwa przez hamulce
    sprawność silnika
    emisje
    zadymienie spalin
    Opis:
    The paper presents the experimental test results reflecting the comparative changes in the performance efficiency and emissions of the exhaust of a naturally aspirated, four-stroke, single-cylinder, air-cooled diesel engine due to its transition from neat rapeseed oil biodiesel to fuel blends prepared by mixing in various proportion (by volume) rapeseed methyl ester (B) and butanol (Bu). The lubricity properties of biodiesel-n-butanol fuel blends were studied using HFRR method. In contrast to previous works, the undertaken investigation is performed with a totally renewable, binary liquid biofuel blends. The purpose of the research is to reduce simultaneously the production of NOx emissions and the exhaust smoke with respect to neat biodiesel due to potentially improved homogeneity of combustible mixture and particulate matter emissions benefits suggested by the higher oxygen content (21.62 wt%) and the relatively lower carbon-to-hydrogen ratio (4.8) of the normal n-butanol. The tests revealed that the brake specific fuel consumption for the binary biodiesel-n-butanol fuel blends is always higher than that neat biodiesel produces under the same loading conditions. Maximum nitrogen oxide (NOx) emissions were obtained with the engine running on neat biodiesel (2290 ppm). At full (100%) load conditions, the lowest NOx emission was obtained with the engine running on a biofuel BBu20 blend. The lowest level of carbon monoxide emissions (CO) was observed, when engine running with the most butanol-oxygenated biofuel blend BBu20.The highest smoke opacity of the exhaust was obtained when the engine was fuelled with neat biodiesel and at full load.
    Źródło:
    Combustion Engines; 2022, 61, 1; 90--95
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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