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    Wyświetlanie 1-3 z 3
    Tytuł:
    Diesel engine for aircraft propulsion system
    Autorzy:
    Gęca, M.
    Czyż, Z.
    Sułek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/134252.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    diesel engine
    aircraft propulsion system
    power-to-weight ratio
    specific fuel consumption
    silnik spalinowy
    lotniczy układ napędowy
    jednostkowe zużycie paliwa
    Opis:
    Stricter requirements for power in engines and difficulties in fueling gasoline engines at the airport make aircraft engine manufacturers design new engines capable of combusting fuel derived from JET-A1. New materials used in compression-ignition engines enable weight reduction, whereas the technologies of a Common Rail system, supercharging and 2-stroke working cycle enable us to increase the power generated by an engine of a given displacement. The paper discusses the parameters of about 40 types of aircraft compression ignition engines. The parameters of these engines are compared to the spark-ignition Rotax 912 and the turboprop. The paper also shows trends in developing aircraft compression-ignition engines.
    Źródło:
    Combustion Engines; 2017, 56, 2; 7-13
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Empirical study of the effect of the air filter on the performance and exhaust emissions of a diesel engine
    Autorzy:
    Dziubak, Tadeusz
    Karczewski, Mirosław
    Dziobek, Ilona
    Powiązania:
    https://bibliotekanauki.pl/articles/24202461.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    internal combustion engine
    air filter pressure drop
    engine power
    specific fuel consumption
    exhaust emissions
    silnik spalinowy
    spadek ciśnienia w filtrze powietrza
    moc silnika
    jednostkowe zużycie paliwa
    emisja spalin
    Opis:
    The results of an experimental study of the effect of the pressure drop of the air filter pf on the operating parameters and exhaust emissions of a modern CI internal combustion engine of a truck equipped with an electronically controlled power system are presented. The tests were carried out for an air filter with a clean filter cartridge Δpf0 = 0.58 kPa and with a cartridge contaminated after a service mileage (about 50 thousand km) ΔpfD = 2.024 kPa. In each test, engine performance, exhaust emissions and relative change in emissions were determined: CO, NOx, HC, CO2, H2O. It was found that an increase in the filter resistance pf causes a decrease in the filling degree by 12%, engine useful power by almost 10%, exhaust gas temperature by a maximum of 30oC and an increase in specific fuel consumption by almost 5%. Air filter resistance has no significant effect on NOx emissions and HC concentration. There is a reduction in H2O emissions by up to 7%, CO by up to 13% and CO2 by up to 4%, and an increase in oxygen emissions by 15%, depending on operating conditions.
    Źródło:
    Combustion Engines; 2023, 62, 2; 94--111
    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 1-3 z 3

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