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    Wyświetlanie 1-4 z 4
    Tytuł:
    Static internal combustion engine operating states in vehicle driving tests
    Autorzy:
    Andrych-Zalewska, Monika
    Chłopek, Zdzisław
    Merkisz, Jerzy
    Pielecha, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/133063.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    combustion engines
    drive test
    engine operating conditions
    silniki spalinowe
    test jezdny
    warunki pracy silnika
    Opis:
    The article presents the compression-ignition engine test results of static operating states in driving tests: NEDC (New European Driving Cycle), RDE (Real Driving Emissions) and the Malta custom test cycle, developed at the Poznan University of Technology. The NEDC and Malta tests were carried out as drive cycle simulations on the engine test bench, the RDE test was carried out in the real driving conditions. The engine operating states are described by the physical quantities of speed and torque. For each of the tests, zero-dimensional characteristics of the values describing the engine operation states were determined, including: mean value and average standard deviation and coefficient of variation. Histograms of quantities describing the engine's operating states for considered tests and driving conditions were also determined. A large diversity of zero-dimensional characteristics of the quantities describing the engine's operating states for the considered driving tests and driving conditions was found.
    Źródło:
    Combustion Engines; 2019, 58, 2; 50-54
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of operating parameters of the aircraft piston engine in real operating conditions
    Autorzy:
    Czarnigowski, Jacek
    Rękas, Daniel
    Ścisłowski, Karol
    Trendak, Michał
    Skiba, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2097612.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    piston engine
    engine parameters
    statistic
    normal operating conditions
    silnik tłokowy
    parametry silnika
    statystyka
    normalne warunki pracy
    Opis:
    The article presents the results of analysis of operational parameters of piston engine CA 912 ULT which is a propulsion system of ultralight gyroplane Tercel produced by Aviation Artur Trendak. Research was conducted under normal operating conditions of the autogyro and data was collected from 20 independent tests including a total of 28 flight hours, divided into training flights and competition flights. Engine speed, manifold air pressure and temperature, fuel pressure, injection time, and head temperature were recorded at 9 Hz during each flight. Collective results were presented to show the statistical analyses of the individual parameters by determining the mean values, standard deviations and histograms of the distribution of these parameters. Histograms of operating points defined by both engine speed and manifold air pressure were also determined. Analyses of the engine dynamics as a distribution of the rate of change of the engine rotational speed were also carried out. It was shown that the engine operating points are concentrated mainly in the range of idle and power above 50% of nominal power. The most frequent range is 70-80% of nominal power. It was also shown that the dynamics of engine work in real operating conditions is small. It was also shown that the way of use significantly influences the distribution of operating points. During training flights, an increase in the number of take-offs and landings causes an increase in the amount of engine work at take-off and nominal power and at idle.
    Źródło:
    Combustion Engines; 2021, 60, 4; 83--89
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study on operating load of the compression ignition engine
    Autorzy:
    Grabowski, Ł.
    Karpiński, P.
    Rudzik, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/133230.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    compression ignition engine
    load
    operating conditions
    silnik o zapłonie samoczynnym
    ładunek
    warunki pracy
    Opis:
    Operation of car engines definitely shows varied values of parameters such as crankshaft speed or load. This paper presents the research and results on load and crankshaft speed in a compression ignition engine. Therefore, the research focused on an operation of a passenger car under urban and non-urban conditions. Our NI Diadem Analysis-based research referred to the data acquired by an OBD-II system. The results obtained enabled some layered charts to depict a frequency of operating states as specified by engine load and speed as well as histograms of these parameters in individual rides. Our investigation showed that operating conditions have an impact on engine operating states. In urban conditions, our engine operated within the range of 700-2000 rpm but idle was more than 50% of the time and load in most cases was not higher than 20%. In non-urban conditions, our engine operated within the range from 700 to 3000 rpm and load was up to 70%.
    Źródło:
    Combustion Engines; 2017, 56, 1; 168-171
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aircraft piston engine load distribution in steady state operating conditions
    Autorzy:
    Czarnigowski, Jacek
    Trendak, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/24202454.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    piston engine
    engine parameters
    statistic
    normal operating conditions
    silnik tłokowy
    parametry pracy silnika
    statystyka
    normalne warunki pracy
    Opis:
    The article presents the results of statistical analysis of aircraft piston engine operational parameters during normal operating conditions. Test was carried out on ultralight gyroplane Tercel produced by Aviation Artur Trendak equipped with CA 912 ULT piston engine. Research was conducted under normal operating conditions of the autogyro and data was collected from 15 independent tests including a total of 14 flight hours conducted during training flights. Engine and flight parameters were recorded at 9 Hz during each flight using on-board Flight Data Recorded system. The data collected was subjected to statistical analysis to determine the statistical distribution of parameters defining the engine's operating condition. The analysis covered engine speed, intake manifold pressure, oil temperature, head temperature and exhaust gas temperature. The results were presented in the form of histograms showing the characteristic ranges of the parameters in aviation engine operation. An analysis of the rate of change of the analysed parameters was then carried out. This was the basis for defining the engine's steady state. The results showed that the steady state of the engine under these operating conditions accounted for more than 78% of the total engine operating time. A Power Consumption Ratio indicating the load range of the engine was determined for steady states. It was shown that most of the time the motor operates at an average load of between 50% and 80% of the nominal value.
    Źródło:
    Combustion Engines; 2023, 62, 2; 29--35
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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