Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "injection process" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-8 z 8
    Tytuł:
    Simulation of injection and combustion processes in 4-stroke spark ignition engine with CNG direct injection
    Autorzy:
    Sendyka, B.
    Mitianiec, W.
    Noga, M.
    Wachulec, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/246095.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    injection process
    combustion process
    simulation
    modelling
    alternative fuels
    CNG
    Opis:
    The paper presents results of simulation conducted as afirst step of 4-stroke spark ignition experimental engine testing. The simulations were performed in a KIVA-3Vsoftware, which is intended to carry out a 3-D simulations of engine's processes. The source code of the software has been modified in order to apply it for gas injection. Original version of the software has been designedto simulate liquid fuel injection only. The simulation of direct CNG injection and combustion has been done for stratified and homogenous modes in order to check the assumed injection, ignition and charging parameters. Important assumption is that the injector had only one nozzle with flow area equal to 2 mm2. Two different cases of fuel direct injection for stratified charge have been analysed. In the first case fuel jet was almost vertical. In the other one fuel jet was nearly horizontal. Further testing has been performed using one-cylinder motorcycle 4-stroke SUZUKI DR-Z400S engine adapted to CNG fuelling. Such an engine has a suitable high compression ratio for CNG fuelling. The simulation has confirmed assumed parameters and has shown that one nozzle injector doesn't provide required fuel stream dissipation and piston crown modification is needed to direct fuel stream in spark plug area. However doing simulation requires some effort this example has shown than this is very important step before conducting experimental tests which provides crucial information and helps to avoid expensive mistakes which can be made during experimental engine preparation.
    Źródło:
    Journal of KONES; 2010, 17, 1; 373-378
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computer-aided diagnostics of injection and combustion processes in engines equipped with Common Rail fuel injection
    Autorzy:
    Lotko, Wincenty
    Powiązania:
    https://bibliotekanauki.pl/articles/2146748.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    Diesel engine
    alternative fuels
    quick-changing parameters
    injection process
    combustion process
    uniqueness of injection
    uniqueness of combustion process
    diagnostic process
    silnik Diesla
    paliwa alternatywne
    proces wtrysku
    proces spalania
    niepowtarzalność procesu spalania
    diagnostyka
    Opis:
    In earlier designs, the compression-ignition engine units were controlled by means of mechanical elements. They were levers, rods, springs, pawls, cams and others. The quality of such control did not ensure the required repeatability of control parameters in the fuel injection and combustion process. After the introduction of the standards limiting engine emissions of the limited exhaust components, the aforementioned engine control systems were not able to meet the requirements. The mechanical regulation of mechanical systems has been replaced by electronic control systems. It was the development of computer techniques and software that enabled design solutions of control systems for injection and combustion process parameters in engines with sufficient accuracy and repeatability of test results. The modern EDC (Electronic Diesel Control) control system, due to the computing power of microprocessors increased in recent years, enables meeting high requirements of modern Common Rail injection systems. The article presents issues in the area of four thematic levels: the design and modernization of the engine, its operation, diagnostic problems in order to determine reasons of unit failures and bench-top methods for assessing the effectiveness of unit repairs as well as issues concerning alternative fuels.
    Źródło:
    Diagnostyka; 2022, 23, 4; art. no. 2022407
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Self-Ignition Delay and Control Parameters of Diesel Engines for Different Vehicle Feeding Systems and Different Fuels
    Autorzy:
    Lotko, Wincenty
    Powiązania:
    https://bibliotekanauki.pl/articles/2024151.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    self-ignition delay
    combustion process
    fuel injection process
    diesel engine
    renewable fuels
    opóźnienie samozapłonu
    proces spalania
    proces wtrysku paliwa
    silnik wysokoprężny
    paliwa odnawialne
    Opis:
    The phenomena accompanying the self-ignition period have been the subject of extensive research in this area. They are usually carried out in constant volume pressure chambers or in reactors with constant air flow. Such tests are considered to be basic. The conditions in these tests are definitely different from those in compression ignition engines. Therefore, the comparison of the auto-ignition delay periods from test setups to those obtained from real engines raises a number of doubts. Because the self-ignition delay period determines the combustion process, a theoretical analysis was conducted, pertaining to a number of factors that have an impact on this process which determines the operational aspects of the engine, and thus its economics and ecology. The research object was a single-cylinder engine from AVL LIST GmbH in Graz, Austria. The engine is equipped with a Common Rail injection system. The test setup meets the following standards: Directive 1999/96/EC of the European Parliament and the Council of 13th December 1999, Regulation (EC) No 715/2007 of the European Parliament and the Council of 20th June 2007, as well as Commission Regulation (EC) No 692 /2008 of 18th July 2008. The analysis of the operational aspects of the self-ignition delay period was based on the results of tests on the AVL 5402 engine fueled with hydrocarbon fuels: diesel and synthetic oil. The engine was also fed with vegetable fuel – rapeseed oil. The obtained material from the tests warns the user of CI engines against the effects of their failure if the engine control parameters and the quality of fuel for its supply are not maintained as recommended by the manufacturers. The material contained in the publication is used for scientific analysis, and, which is worth emphasizing, is of a utilitarian nature.
    Źródło:
    Advances in Science and Technology. Research Journal; 2021, 15, 1; 245-254
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of marine combustion engine processes with vibroacoustic methods for environment protection strategy
    Analiza procesów zachodzących w spalinowych silnikach okrętowych za pomocą metod wibroakustycznych dla strategii ochrony środowiska naturalnego
    Autorzy:
    Merkisz, J.
    Waligórski, M.
    Babiak, M.
    Kniaziewicz, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/133591.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    vibroacoustic diagnostics
    injection process
    combustion process
    HD-D marine engine
    digital signal analysis
    emission assessment
    emission control
    diagnostyka wibroakustyczna
    proces wtrysku
    spalanie paliwa
    okrętowy silnik typu HD-D
    analiza cyfrowa sygnału
    ocena emisji
    kontrola emisji
    Opis:
    The paper describes the method of a sea boats online diagnostic with the use of the main and accompanying processes analyses. The paper concerns injection and combustion processes taking place in internal combustion engines of the military boats. Authors chosen vibroacoustic processes in the research to obtain the important diagnostic information on the above processes runs and their correctness in the sources of a drive of the HDV off-road water transport vehicles. The specified method of a digital data acquisition for dynamic processes in such combustion engines and sort of diagnostic parameters taken into account were basis of the required empirical research process and further signal analyses. High accuracy of the measurement methodology and process with additional conditions caused the authors could take the obtained signals to the parallel, combustion engineering and vibroacoustic engineering process, according to which they extract important information on the combustion processes runs and their problems. Identification of such problems and its type was helpful to build algorithm of the diagnostic assessment of such processes in the point of view of building diagnostic system for such military boats with the regime of the efficiency of the energy changes and emission control in the all exploitation period.
    W artykule przedstawiono metodę ciągłej diagnostyki jednostek pływających z zastosowaniem analiz procesów głównych i towarzyszących. Praca dotyczy procesów wtrysku i spalania paliwa w silniku spalinowym rozważanych dla jednostek pływających. W ramach pracy badawczej wykorzystano procesy wibroakustyczne, celem uzyskania istotnych diagnostycznie informacji o poprawności przebiegu tychże procesów w napędach środków transportu wodnego kwalifikowanych do grupy HDV o zastosowaniach pozadrogowych. Podstawą wymaganego procesu badań empirycznych i następujących po nim analiz sygnałów była zastosowana ściśle określona dla procesów dynamicznych metoda cyfrowej akwizycji danych oraz rodzaj uwzględnionych w analizie parametrów diagnostycznych. Duża dokładność metodyki pomiarowej i procesu wraz z uwzględnieniem warunków uzupełniających umożliwiły dokonanie oceny uzyskanych sygnałów w ramach analizy inżynierskiej procesu spalania i oceny wibroakustycznej, zgodnie z którymi wybrano ważne informacje o przebiegu procesów spalania i nieprawidłowościach w nich występujących. Identyfikacja tychże nieprawidłowości i wskazanie ich rodzaju stanowiło bazę do opracowania algorytmu oceny diagnostycznej powyższych procesów, z punktu widzenia budowy systemu diagnostycznego dla zastosowań okrętowych przy uwzględnieniu zmian sprawności energetycznej w obiekcie i kontroli emisji w całym okresie eksploatacji obiektu technicznego.
    Źródło:
    Combustion Engines; 2013, 52, 2; 28-39
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Some aspects of dual fueling of the middle class modern CI engines
    Autorzy:
    Stelmasiak, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/242729.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    dual fuel
    natural gas
    gas injection
    common rail
    combustion process
    Opis:
    The paper presents results of studies on the dual fuel engine equipped with the Common Rail high pressure injection system and low pressure natural gas injection into the inlet collector. Impact of some regulation parameters of the feed system on the engine performance parameters was examined. Research of the pilot dose selection showed that the minimal size of the dose was limited to ca 12+13% of the nominal dose. It is a result of some troubles of the electromagnetic injector operation at short times of control. The effect of that is a notable deterioration of smoothness of the engine operation. However, electronic control of the injector opening timing enables to reduce the pilot dose size as the engine load is reduced. The research showed advantageous impact of the decreasing dose on the engine efficiency and exhaust gas toxicity at partial loads of the engine. The tests reconfirmed full usefulness of the system to combustion process optimization. A delay of the injection start at high engine loads enables to reduce nearly twice the NOx concentration in exhaust gas with insignificant decreasing, some 1+1.5%, of its efficiency. The used systems showed their high suitability to control charge quality in dual fuel engines, in traction applications in particular.
    Źródło:
    Journal of KONES; 2007, 14, 4; 453-462
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computational modelling of the fuel injection and combustion in a Diesel K6 rotary engine
    Autorzy:
    Mason, M.
    Wyszyński, M. L.
    Jordan, O.
    Gibson, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/243793.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    combustion engine
    combustion process
    combustion factors
    fuel injection
    ANSYS Fluent code
    Opis:
    This paper outlines the methods and results of computations completed using the ANSYS Fluent code modelling the fuel injection and combustion within the K6 engine, a new form of rotary engine in which the fuel is injected in an arc across the top of the cylinder. The model uses the DPM Model in conjunction with a dynamic mesh and non-premixed combustion models to treat the injection as liquid diesel evaporating to C12H23. The outcomes of this model are presented in images displaying the distribution of temperature, and fuel and CO2 concentrations. The limitations pertaining to the maximum injection angles are also studied. The simulation is found to be effective and the results suggestive of successful, clean and complete combustion while presenting some matters, which require further investigation. The article presents temperature within the combustion chamber at various crank angle degrees, ) velocity of fluid within the combustion chamber, effects of impingement with injector offset on temperature and fuel concentration, fuel concentration demonstrating impingement, in cylinder temperature curve.
    Źródło:
    Journal of KONES; 2018, 25, 4; 263-276
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diesel operation efficiency improvement based on modelling of fuel carburetion process
    Povyshenie ehffektivnosti raboty dizelja na osnovanii modelirovanija processa smeseobrazovanija topliva
    Autorzy:
    Berestovoy, I.
    Aynagoz, G.
    Berestovoy, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/792242.pdf
    Data publikacji:
    2013
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    diesel engine
    structure
    fuel injection system
    drop
    fuel carburetion process
    kinetic energy
    combustion process
    air-fuel mixture
    engine operation
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2013, 13, 3
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulation model of combustion engine with direct injection of hydrogen
    Autorzy:
    Blažek, J.
    Brabec, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/242159.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    Simulation model of combustion engine
    direct hydrogen injection
    Ricardo Wave
    combustion process
    spark ignition engine
    Opis:
    Fuel mixture formation inside a cylinder has become used more frequently in spark ignition engines in recent years. gas internal combustion engines can also benefit from this concept as direct injection into an engine 's cylinder during the compression stroke not only increases its volumetric efficiency but also eliminates adverse anomalies in the combustion process. This paper focuses on the development of a simulation model for a spark ignition engine with direct hydrogen injection into a cylinder. The Wave software was used for the simulation. A part of the paper depicts the model's verification. The study utilized a three-cylinder internal combustion engine with the total cylinder volume of 1.2 dm3. The concept of the engine is based on new, high-pressure injectors with 10 MPa inlet pressure (gas-hydrogen injection directly into the engine cylinder). Utilization of internal fuel mixture formation can be beneficial due to its enabling the control of the combustion process and gaseous emission generation. From the viewpoint of the engine's design, however, internal fuel mixture utilisation is more complicated as injectors have to be built into the cylinder head. The actual engine construction is housed in laboratories of the Technical University of Liberec, Department of Vehicles and Engines.
    Źródło:
    Journal of KONES; 2009, 16, 3; 15-21
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies