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    Wyświetlanie 1-4 z 4
    Tytuł:
    The impact of the share of biogas in a supply dose on load parameters in the combustion chamber of a dual-fuel compression-ignition engine
    Autorzy:
    Wierzbicki, S.
    Boruta, G.
    Piętak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/243036.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    biogas
    gas
    air mixture
    λ ratio
    compression-ignition engine
    Opis:
    The need to increase the share of renewable fuels in the general energy balance necessitates the search for new possibilities of their use. One such fuel is biogas, which is generated both as a result of natural processes occurring, e.g. in landfills, and can also be obtained from various biological materials in biogas plants. Because of its properties, biogas may be used to power spark-ignition engines. At the same time, in numerous scientific centres attempts are underway at using biogas to power compression-ignition engines. Due to the relatively high autoignition temperature of methane, which is the main component of biogas, it is necessary to use dual-fuel supply systems in CI engines. Providing fuel gas to such an engine in the form of biogas, which can have a varying chemical composition, considerably changes the conditions of combustion in the engine compartment, which affects both the performance of the engine as well as the emission of toxic compounds into the atmosphere. The present paper discusses the impact of supplying an engine with fuel gas, as well as of the composition of biogas, on the ratios describing the load in the combustion chamber of a dual-fuel compression-ignition engine. The calculations were conducted for a four-cylinder forced induction engine, assuming that the volume of the drawn gas and air mixture equals the volume of the drawn air during mono-fuel operation.
    Źródło:
    Journal of KONES; 2016, 23, 2; 407-414
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena wpływu dodatku ozonu na jakość spalin silnika o zapłonie samoczynnym
    Effect of ozone addition on quality of exhaust gases of compression-ignition engin
    Autorzy:
    Prajwowski, K.
    Gołębiewski, W.
    Kordas, M.
    Rakoczy, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2073259.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    silnik wysokoprężny
    toksyczność spalin
    ozon
    compression-ignition engine
    exhaust gas toxicity
    ozone
    Opis:
    W pracy przedstawiono wyniki badań jednostki wysokoprężnej (Fiat 1,3 JTD 16V MULTIJET). Praca miała na celu określenie wpływu ozonu na toksyczność spalin wylotowych. Zaobserwowano znaczącą redukcję toksyczności spalin poddanych oddziaływaniu ozonu.
    The aim of this paper is to present the results obtained for the compression- ignition unit (Fiat 1,3 JTD 16V MULTIJET). The primary objective of this work was to determine the effect of ozone on exhaust gas toxicity. A significant increase in the reduction of exhaust gas toxicity was observed.
    Źródło:
    Inżynieria i Aparatura Chemiczna; 2017, 4; 138--139
    0368-0827
    Pojawia się w:
    Inżynieria i Aparatura Chemiczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ dodatku ozonu na parametry pracy i toksyczność spalin silnika o zapłonie samoczynnym
    The effect of ozone addition on operational parameters and toxicity of exhaust gases of compression-ignition engine
    Autorzy:
    Stoeck, T.
    Prajwowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/312895.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Naukowo-Wydawniczy "SPATIUM"
    Tematy:
    silnik wysokoprężny
    parametry pracy silnika
    toksyczność spalin
    ozon
    compression-ignition engine
    operational parameters
    exhaust gas toxicity
    ozone
    Opis:
    W artykule przedstawiono wyniki badań wstępnych, które prowadzono na typowym stanowisku dynamometrycznym w hamowni silnikowej. Obiektem pomiarów była jednostka wysokoprężna Fiat 1.3 JTD 16V MULTIJET. Zasadniczym celem eksperymentu było określenie wpływu ozonu na parametry robocze silnika oraz toksyczność spalin wylotowych. W poszczególnych cyklach badawczych jego dodatek doprowadzano przez układ recyrkulacji gazów z kadłuba i głowicy, wykorzystując przewód powietrza do turbosprężarki. Końcowe wyniki przedstawiono w formie graficznej, w postaci wybranych charakterystyk zewnętrznych silnika.
    In this paper are presented the results of preliminary tests which were conducted on a typical dy-namometer of engine test bench. The object of measurements was Fiat 1.3 JTD 16V MULTIJET compression-ignition unit. The primary objective of this experiment was to determine the effect of ozone on engine working parameters and exhaust gas toxicity. In respective test cycles, its addition was being supplied through exhaust gas re-circulation system from the engine block and the cylinder head, using the air line to turbo-compressor. Final results are presented in a graphical form as selected external engine performance characteristics.
    Źródło:
    Autobusy : technika, eksploatacja, systemy transportowe; 2012, 13, 10; 85-87
    1509-5878
    2450-7725
    Pojawia się w:
    Autobusy : technika, eksploatacja, systemy transportowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Laboratory station for research of the innovative dry method of exhaust gas desulfurization for an engine powered with residual fuel
    Autorzy:
    Korczewski, Z.
    Rudnicki, J.
    Zadrąg, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/132848.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    compression-ignition engine
    desulfurization of exhaust gas
    dry method
    silnik o zapłonie samoczynnym
    odsiarczanie spalin
    metoda sucha
    Opis:
    Development of technology for exhaust gas desulfurization in marine engines using the dry method is, nowadays, a priority due to the calendar of introducing restrictions by the Directive of the European Parliament and of the Council 2012/33/EU of 21 November 2012. According to this directive, starting from 1 January 2015, inside the SECA (Sulphur Emission Control Area) the maximum sulfur content of marine fuels used on territorial seas is 0.1% per weight unit. But at the same time the directive allows for the use of exhaust gas desulfurization plant operating in a closed system. The ship equipped with the system will be able to use fuels with a high sulfur content, which will then be removed from the exhaust gas through an applied adsorber, and the reacted adsorbent is received by specialized services stationed in harbors. The International Maritime Organization has set a limit value of the emissions of sulfur oxides in exhaust gases of marine engines at 6 g/kWh (International Convention for the Prevention of Sea Pollution from Ships MARPOL 73/78 Annex VI, Regulation 14). Contemporary methods of exhaust gas desulfurization in marine engines are all expensive methods (4-5 million euro). This is, among other reasons, due to the limited market audience, but primarily due to the monopolized position of manufacturers offering fabrication and assembly of this type of marine ship installations. Proposed as part of a research project financed by the Regional Fund for Environmental Protection and Maritime Economy in Gdansk, the dry method (adsorption) reducing SOx emissions in exhaust gases of marine engines, is an alternative, and a definitely cheaper and therefore competitive solution, compared to the wet methods (absorption), which are currently the most widely used in marine scrubber installations. Importantly, as confirmed by the results of the study, the proposed dry method, in addition to the effective reduction of sulfur oxides, also reduces emissions of nitrogen oxides and carbon monoxide. The paper presents the configuration and measurement capabilities of the test station built under the project, as well as the representative results of the investigations so far. During the exhaust gas desulfurization test a sodium adsorbent (sodium bicarbonate) and its modifications were used in the process of mechanical, chemical, and thermal activation. Two physicochemical processes were studied during the development of the method: of adsorbent’s reaction on the chemical emission of the exhaust gas – the effectiveness of SOx and NOx compound removal, with various structural solutions in the process reactor, the impact of the adsorber on the emission source of sulfur oxides, that is, on the compression-ignition engine. Therefore, one of the priorities of the project, with a utilitarian significance, was to determine the impact of the inclusion of the desulfurization installation in the exhaust gas system on the energy ratios of the engine.
    Źródło:
    Combustion Engines; 2017, 56, 1; 32-37
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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