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    Tytuł:
    The impact of ignition system damage on the emission of toxic substances in a spark-ignition internal combustion engine
    Autorzy:
    Dziubiński, Mieczysław
    Siemionek, Ewa
    Drozd, Artur
    Ścirka, Michał
    Kiszczak, Adam
    Sobota, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/133381.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    spark-ignition internal combustion engine
    emission of toxic substances
    exhaust standards
    ignition system defects
    diagnostics
    silnik spalinowy o zapłonie iskrowym
    emisja substancji toksycznych
    normy emisji spalin
    uszkodzenia układu zapłonowego
    diagnostyka
    Opis:
    The article discusses the impact of ignition system damage on the emission of toxic subcategories in a spark-ignition internal combustion engine. The aim of the work was to develop an analytical model of ignition system diagnostics, test performance and comparative analysis of the results of simulations and experiments. The model developed allows to analyse the basic parameters of the ignition system affecting the content of toxic substances in the exhaust. Experimental tests were carried out using the MAHA MGT5 exhaust gas analyser for four different combustion engines fueled with petrol at various operating conditions. During the tests, the content of toxic substances in the exhaust gas of a properly working engine and the engine working with damage to the ignition system were registered. The tests will be used to assess the impact of the damage of the spark-ignition engine on the emission of individual components of toxic fumes.
    Źródło:
    Combustion Engines; 2019, 58, 4; 86-92
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diagnosing faults in the timing system of a passenger car spark ignition engine using the bayes classifier and entropy of vibration signals
    Autorzy:
    Czech, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2203067.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    internal combustion engines
    diagnostics
    Bayesian classifier
    pattern recognition
    spark-ignition internal combustion engine
    exhaust valve of the internal combustion engine
    silniki spalinowe
    diagnostyka
    klasyfikator bayesowski
    rozpoznawanie wzorca
    silnik spalinowy z zapłonem iskrowym
    zawór wydechowy silnika spalinowego
    Opis:
    Today's systems for diagnosing the technical condition of machines, including vehicles, use very advanced methods of acquiring and processing input data. Presently, work is being conducted globally to solve related problems. At the moment, it is not yet possible to create a single procedure that would enable the construction of a properly functioning diagnostic system, regardless of the selected object to be diagnosed. Hence, there is a need to conduct further research into the possibility of using already developed methods, as well as their modification to other diagnostic cases. This article presents the results of research related to the use of the Bayes classifier for diagnosing the technical condition of passenger car engine components. Damage to the exhaust valve of a spark ignition engine was diagnosed. The source of information on the technical condition was vibration signals recorded at various measuring points and under different operating conditions of the car. To describe the nature of changes in the vibration signals, the entropy measures were determined for the decomposed signal using the discrete wavelet transform is proposed.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 116; 83--98
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the impact of damage to the injection system on the emission of toxic substances in a spark-ignition internal combustion engine
    Autorzy:
    Dziubiński, Mieczysław
    Siemionek, Ewa
    Drozd, Artur
    Żur, Paweł
    Ścirka, Michał
    Tatarynow, Dawid
    Powiązania:
    https://bibliotekanauki.pl/articles/133801.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    spark-ignition internal combustion engine
    exhaust gas toxicity
    exhaust gas standards
    injection system damage
    exhaust gas analyzer
    silnik spalinowy o zapłonie iskrowym
    toksyczność spalin
    normy emisji spalin
    uszkodzenie układu wtryskowego
    analizator spalin
    Opis:
    The article presented analyses the impact of damage to the injection system on the emission of toxic subsumes in a spark-ignition internal combustion engine. The work focuses on the basic elements of the injection system, which include injectors, throttle position sensor, coolant temperature sensor and lambda sensor. In addition, a catalytic reactor has been included in the context of its direct cooperation with the injection system under set conditions. The toxicity of exhaust gases of different spark-ignition engines fueled with petrol or gas in determined operating conditions using the MAHA MGT5 exhaust gas analyser was tested. The content of toxic substances in the exhaust gases was recorded for the correct settings of the injection system and for the engine working with damage to this system. The tests carried out will allow to assess the impact of the damage of the injection system on the toxicity of exhaust gases.
    Źródło:
    Combustion Engines; 2019, 58, 4; 112-118
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research effects of novel combustion system with semi-open combustion chamber using rapid compression machine
    Autorzy:
    Leżański, T.
    Sęczyk, J.
    Wolański, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/245605.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    internal combustion engines
    spark ignition
    combustion processes
    engine combustion systems
    combustion process visualization
    Opis:
    The combustion system with semi open combustion chamber (SOCC) was originally elaborated in Aircraft Engine Department of Warsaw University of Technology. In this system the original combustion chamber of the standard SI engine, was divided by partition in prechamber and main combustion chamber, but yet this division exists only when the piston is close to TDC, on the contrary by the rest of the cycle the chambers are fully open. The system operation mechanism, the visualization research results, the high speed changed of the pressure measurements, was presented in this paper. The influence on the system performances of the different combustion systems parameters: the prechamber volume, the nozzle hole diameter in the partition, the ignition place, the compression ratio, and the ignition advance angle (IAA), on the basis of the research results, using rapid compression machine was presented in this paper. All research results show, that the best results of the system operation can be obtained if the stream outflow from prechamber to main combustion chamber starts when the piston is at TDC, and if the stream energy will be so big to displace all main combustion chamber before the clearance between partition and piston crown was opened. If the system operated correctly, the combustion time shortening, the growth of the maximum cycle pressure, and the combustion efficiency increase were obtained.
    Źródło:
    Journal of KONES; 2014, 21, 4; 297-310
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical optimization of the ignition angle of SI engine
    Numeryczna optymalizacja zaplonu w silniku spalinowym ZI
    Autorzy:
    Jamrozik, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/793708.pdf
    Data publikacji:
    2011
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    internal combustion engine
    ignition advance angle
    numerical optimization
    fuel mixture
    numerical modelling
    combustion process
    piston engine
    spark ignition engine
    fuel supply system
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model validation of the SI test engine
    Walidacja modelu badawczego silnika ZI
    Autorzy:
    Jamrozik, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/792417.pdf
    Data publikacji:
    2013
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    engine test
    spark ignition engine
    internal combustion engine
    numerical analysis
    AVL FIRE software
    combustion process
    crank angle
    thermal cycle
    modelling
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2013, 13, 2
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of indication errors of the SI gas engine with a prechamber
    Analiza bledow indykowania gazowego silnika ZI z komora wstepna
    Autorzy:
    Jamrozik, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/793719.pdf
    Data publikacji:
    2011
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    engine
    two-stage combustion system
    excess air factor
    indicated work
    gas engine
    prechamber
    thermal process
    internal combustion engine
    spark ignition
    piston engine
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    CFD modelling of complete thermal cycle of SI engine
    Modelowanie pelnego cyklu cieplnego silnika ZI
    Autorzy:
    Jamrozik, A.
    Tutak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/793217.pdf
    Data publikacji:
    2012
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    spark ignition engine
    internal combustion engine
    thermal cycle
    modelling
    AVL FIRE software
    simulation
    computational modelling
    exhaust emission
    numerical calculation
    combustion process
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 2
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-parametric and multi-objective thermodynamic optimization of a spark-ignition range extender ICE
    Autorzy:
    Toman, R.
    Brankov, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/243112.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    Range Extender
    hybrid electric vehicle
    battery electric vehicle
    internal combustion engine
    spark ignition
    thermodynamic optimization
    genetic algorithm
    Opis:
    The current legislation pushes for the increasing level of vehicle powertrain electrification. A series hybrid electric vehicle powertrain with a small Range Extender (REx) unit – comprised of an internal combustion engine and an electric generator – has the technical potential to overcome the main limitations of a pure battery electric vehicle: driving range, heating, and air-conditioning demands. A typical REx ICE operates only in one or few steady-states operating points, leading to different initial priorities for its design. These design priorities, compared to the conventional ICE, are mainly NVH, package, weight, and overall concept functional simplicity – hence the costeffectiveness. The design approach of the OEMs is usually rather conservative: parting from an already-existing ICE or components and adapting it for the REx application. The fuel efficiency potential of a one-point operation of the REx ICE is therefore not fully exploited. This article presents a multi-parametric and multi-objective optimization study of a REx ICE. The studied ICE concept uses a well-known and proven technology with a favourable production and development costs: it is a two-cylinder, natural aspirated, port injected, four-stroke SI engine. The goal of our study is to find its thermodynamic optimum and fuel efficiency potential for different feasible brake power outputs. Our optimization tool-chain combines a parametric GT-Suite ICE simulation model and modeFRONTIER optimization software with various optimization strategies, such as genetic algorithms, gradient based methods or various hybrid methods. The optimization results show a great fuel efficiency improvement potential by applying this multi-parametric and multi-objective method, converging to interesting short-stroke designs with Miller valve timings.
    Źródło:
    Journal of KONES; 2018, 25, 3; 459-466
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The evaluation of the Fiat 0.9 TwinAir engine powered by petrol and LPG gas work cycles uniqueness
    Autorzy:
    Lejda, K.
    Kurczyński, D.
    Łagowski, P.
    Warianek, M.
    Dąbrowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/245074.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    spark ignition engines
    gas engines
    gasoline engines
    uniqueness of work cycle of internal combustion engine
    indicator diagram
    Opis:
    The article describes the test results of the uniqueness of the work cycle of two-cylinder internal combustion piston FIAT 0.9 TwinAir engine, while being powered by 95 octane petrol fuel and LPG gas. The engine was working according to load characteristics. The engine mounted on the test bench was equipped with a sequential LPG gas fuel supply system. The gas fuels differ significantly from the petrol fuels in their physiochemical properties. In order to rationally utilize gas fuels to power internal combustion engines, the knowledge about basic fuel burning process of these fuels is required. The article shows the analysis of individual engine work cycles of the technologically advanced engine in order to evaluate the influence of powering by LPG gas fuel on the rate of uniqueness of its work cycles. The measure of uniqueness of the inter-cylinder processes are the work cycle uniqueness indicators, which are as follows: the maximum work cycle pressure uniqueness indicator, the average measured work cycle pressure uniqueness indicator, the measured pressure work cycle graph uniqueness indicator and the measured pressure work cycle partial graph uniqueness. The carried out research and its analysis has shown that powering the engine with LPG gas has an influence on the engine work cycles and its uniqueness. The burning process of the mixture consisting of air and LPG gas is quicker, which has an effect on the higher speed of pressure increase rate in comparison with the engine being powered by petrol fuel. Achieved maximum in-cylinder pressure values while the engine was powered by LPG gas were higher in comparison with it being fuelled with conventional fuel. This causes an increase of the gas lads on crank-piston system, which are influencing directly the piston with higher heat load, and the thermal load of the engine.
    Źródło:
    Journal of KONES; 2018, 25, 3; 323-330
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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