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    Wyświetlanie 1-14 z 14
    Tytuł:
    Oddziaływanie biopaliwa FAME na elementy uszczelniające filtrów paliwa
    The impact of FAME biofuel on sealing elements of fuel filters
    Autorzy:
    Nawrot, K.
    Kozak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/132862.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    FAME
    biopaliwo
    filtr paliwa
    uszczelnienia
    elastomery
    biofuel
    fuel filter
    seals
    elastomers
    Opis:
    Jednym z głównych problemów związanych z zastosowaniem biopaliwa FAME (estry metylowe kwasów tłuszczowych) w czystej postaci jako paliwa silnikowego jest jego destrukcyjne oddziaływanie na elementy układu paliwowego wykonane z tradycyjnych materiałów konstrukcyjnych. Dotyczy to zarówno elementów wykonanych z metali (oddziaływanie korozyjne), jak i z tworzyw sztucznych. W niniejszej pracy podjęto się oceny wpływu FAME na elementy uszczelniające filtrów paliwa, które wykonywane są z kauczuku fluorowego i kauczuku akrylonitrylowego. W wyniku badań stwierdzono, że właściwości mechaniczne kauczuku fluorowego nie zmieniają się w warunkach długotrwałego kontaktu z FAME. A zatem może być on bezpiecznie stosowany w układach paliwowych silników zasilanych FAME jako samoistnym paliwem.
    One of the main difficulties associated with the use of FAME biofuel (fatty acid methyl esters) in its pure form as a motor fuel is its destructive effect on fuel system components made with traditional materials. This applies to both elements made out of metal (corrosive effect), as well as synthetic materials. This study attempts to assess the impact of FAME biofuel on sealing elements of fuel filters, which are made of fluorine rubber and nitrile butadiene rubber. The results showed that the mechanical properties of fluorine rubber do not change in the conditions of prolonged contact with FAME. Thus, it can be safely used in fuel systems for engines fueled with FAME as a neat fuel.
    Źródło:
    Combustion Engines; 2015, 54, 3; 407-410
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena wpływu symulowanej zmiany drożności filtra cząstek stałych na prędkość obrotową wirnika turbosprężarki w samochodowych silnikach spalinowych
    Impact assessment of the simulated patency changes in particle filters on the speed of turbine rotor in automotive internal combustion engines
    Autorzy:
    Idzior, M.
    Karpiuk, W.
    Bieliński, M.
    Borowczyk, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/133821.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    doładowanie silników spalinowych
    turbosprężarka
    filtr cząstek stałych
    combustion engines turbocharging
    turbocharger
    particle filter
    Opis:
    W pracy przedstawiono analizę wpływu zmiany drożności filtra cząstek stałych na właściwości dynamiczne turbosprężarki Garrett GT 1544V. Zmianę drożności filtra symulowano za pomocą zaworu kulowego umieszczonego w układzie wylotowym silnika. Podstawowym parametrem pracy turbosprężarki rozważanym w ocenie była prędkość obrotowa wirnika. Na podstawie przeprowadzonych badań wykazano występowanie znacznego zmniejszenia prędkości obrotowej wirnika turbosprężarki, w przypadku spadku drożności układu wylotowego.
    An impact assessment of patency changes’ in diesel particle filters on dynamic characteristics of Garrett 1544V turbocharger has been presented in article. Changes in filters patency were simulated thanks to ball valve which was placed in engine exhaust system. Speed of turbine was main parameter of turbocharger’s operation which was taken into consideration during assessment. On the basis of realized investigations it was demonstrated that in case of patency decreasing there is significant decreasing of turbine rotor speed.
    Źródło:
    Combustion Engines; 2013, 52, 3; 489-495
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of particulate filter substrate type on the gaseous exhaust components emission
    Autorzy:
    Sokolnicka-Popis, Barbara
    Szymlet, Natalia
    Siedlecki, Maciej
    Gallas, Dawid
    Powiązania:
    https://bibliotekanauki.pl/articles/2097478.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    filtration
    emission
    particulate filter
    gaseous components
    combustion
    filtracja
    emisja
    filtr cząstek stałych
    składniki gazowe
    spalanie
    Opis:
    The article presents ceramic and metal substrate filtration efficiency in the particulate filter of a spark-ignition engine with direct fuel injection. Gaseous exhaust components were taken into account. There are many publications on the solid particles mass and number reduction, so the authors examined the effect of catalytic carriers on gaseous compounds, such as CO, NOx, THC, whose content also poses a threat to human health and life, and this issue is not often described in the literature dedicated to measurements of modern internal combustion engines. During the tests, the length and carrier material effect on the emission of harmful substances in exhaust gases was determined.
    Źródło:
    Combustion Engines; 2020, 59, 4; 58--62
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    DPF retrofit program in Israel – effects of diesel particle filters on performance of in-use buses
    Autorzy:
    Tartakovsky, L.
    Fleischmann, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/132839.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    particle emissions
    diesel particle filter
    heavy-duty vehicle
    DPF retrofit
    emisja cząstek
    filtr cząstek stałych
    pojazdy ciężarowe
    Opis:
    A long service life of heavy-duty diesel vehicles results in a large number of older-technology trucks and buses of various types running on roads nowadays. Cleaning up exhaust gases of these older vehicles gives an opportunity to improve air quality at affordable costs. Retrofitting older buses with diesel particulate filters (DPF) is a cost-effective measure to quickly and efficiently reduce particulate matter (PM) emissions and contribute to mitigation of air pollution in urban conglomerates. In this paper, the milestones on a way to wide-scale retrofitting of heavy-duty vehicles with DPF are discussed on the example of Israel DPF retrofit program. Crucial importance of a balanced governmental approach combining regulation and economic incentives, together with collaboration of government, academia and vehicle operators, is underlined. Main results of the one-year pilot project focused on urban and intercity buses are discussed. Impact of DPF retrofitting on particulate emissions and engine performance and maintenance aspects of in-use diesel buses is analyzed. Very high particle filtration efficiency (in average, about 97%) together with relatively low fuel economy penalty (0.6–1.8%, depending on the bus type) are proved. Vital importance of careful monitoring and correct maintenance of DPF-equipped vehicles is underlined.
    Źródło:
    Combustion Engines; 2017, 56, 3; 176-178
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of combustion of engine Sulzer 3AL 25/30 by measuring of crankshaft angular speed
    Ocena procesu spalania w silniku Sulzer 3AL 25/30 metodą pomiaru oscylacji prędkości obrotowej wału korbowego
    Autorzy:
    Dereszewski, M.
    Polanowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/133901.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    fault detection
    instantaneous angular speed
    noise decomposition
    Savitzky-Golay filter
    wykrywanie uszkodzeń
    chwilowa prędkość kątowa
    dekompozycja zakłóceń
    filtr Savitzky'ego-Golaya
    Opis:
    Analysis of Instantaneous Angular Speed (IAS) of the crankshaft is considered as one of non intrusive and effective method of detection of combustion quality deterioration. In this paper are presented results of experimental verification of high pressure fuel system’s malfunction detecting, using optical encoder for IAS recording. The implemented method relay on comparison of measurement results recorded under healthy and faulty condition of the engine. Elaborated dynamic model of angular speed variations enables to build templates of engine behavior. Data processing of raw angular speed signal was noise decomposition in way of implementation of Savitzky-Golay filter. Measured signal of faulty and healthy conditions were compared and value of difference was taken as an indicator of malfunction.
    Analiza chwilowej prędkości kątowej wału korbowego silnika jest uważana za efektywną i nieinwazyjną metodę wykrywania pogorszenia jakości procesu spalania w cylindrze. W artykule zaprezentowano wyniki weryfikacji eksperymentalnej wykrywania uszkodzenia systemu paliwowego wysokiego ciśnienia w oparciu o pomiar prędkości kątowej enkoderem optycznym. Zastosowana metoda polega na porównaniu wyników pomiaru na silniku sprawnym oraz z symulowanym uszkodzeniem. Model matematyczny ruchu obrotowego wału pozwala na tworzenie teoretycznych wzorców krzywej zmian prędkości dla różnych symulacji uszkodzeń. Dekompozycja zakłóceń sygnałów pomierzonych została przeprowadzona z wykorzystaniem filtrów Savitzky’ego-Golaya. Wartość różnicy pomiędzy wygładzonymi przebiegami prędkości chwilowej w stanie bez i z symulacją uszkodzenia stanowi wskaźnik uszkodzenia.
    Źródło:
    Combustion Engines; 2013, 52, 3; 346-350
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methodology of diesel particulate filter testing on test bed for non-road engine application
    Autorzy:
    Sala, Rafał
    Kołek, Kamil
    Konior, Witold
    Powiązania:
    https://bibliotekanauki.pl/articles/2097658.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    exhaust aftertreatment
    diesel particulate filter
    soot oxidation
    passive regeneration
    emission
    układy oczyszczania spalin
    filtr cząstek stałych
    utlenianie sadzy
    pasywna regeneracja filtrów
    emisja
    Opis:
    This paper describes the methodology and test results of diesel particulate filter (DPF) functional testing performed on non-road compression ignition engine application installed on test bed. The scope of work included testing of various DPF regeneration strategies, backpressure and balance point tests and emission performance evaluation during a legislative test cycle. The aim of this study was to observe and investigate the influence of raw exhaust gas parameters on DPF functionality in terms of filtration efficiency, soot loading, type and duration of the regeneration and emission performance. Under investigation was the capability of soot burning rate and fuel penalty. The DPF sample under test was part of the complete exhaust aftertreatment system (ATS) which consisted of: a diesel oxidation catalyst (DOC), a DPF and a selective catalytic reduction system (SCR) with urea dosing and ammonia slip catalyst (ASC). Testing was carried out on a heavy-duty diesel engine installed on a test stand with a dynamic dynamometer and equipped with an emission bench. The test program allowed to assess the engine matching to exhaust aftertreatment system with regard to emissions compliance, in-service operation and necessary engine control unit (ECU) calibration works. The results show the influence of the DPF regeneration strategy on its duration and on the soot mass burn rate. Passive DPF regeneration was a favorable mode of DPF cleaning, due to lack of fuel penalty and lower aging impact on the entire ATS. Optimization of soot flow rate, exhaust gas temperature and the chemistry of the DOC/DPF was further recommended to ensure the long-term durability of the entire system.
    Źródło:
    Combustion Engines; 2022, 61, 3; 72--79
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanoparticle emissions from gasoline vehicles DI & MPI
    Autorzy:
    Czerwinski, J.
    Comte, P.
    Güdel, M.
    Bonsack, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/132995.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    particle number
    PN
    gasoline direct injection
    GDI
    multipoint port injection
    MPI
    gasoline particle filter
    GPF
    liczba cząstek
    bezpośredni wtrysk benzyny
    filtr cząstek benzyny
    Opis:
    The nanoparticles (NP) count concentrations are limited in EU for all Diesel passenger cars since 2013 and for gasoline cars with direct injection (GDI) since 2014. For the particle number (PN) of MPI gasoline cars there are still no legal limitations. In the present paper some results of investigations of nanoparticles from five DI and four MPI gasoline cars are represented. The measurements were performed at vehicle tailpipe and in CVS-tunnel. Moreover, five variants of “vehicle – GPF” were investigated. The PN-emission level of the investigated GDI cars in WLTC without GPF is in the same range of magnitude very near to the actual limit value of 6.0 × 1012 1/km. With the GPF’s with better filtration quality, it is possible to lower the emissions below the future limit value of 6.0 × 1011 1/km. The modern MPI vehicles also emit a considerable amount of PN, which in some cases can attain the level of Diesel exhaust gas without DPF and can pass over the actual limit value for GDI (6.0 × 1012 1/km). The GPF-technology offers in this respect further potentials to reduce the PN-emissions of traffic.
    Źródło:
    Combustion Engines; 2017, 56, 3; 179-187
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Non-regulated emissions and particle number emissions of two passenger cars with diesel-butanol blends
    Autorzy:
    Engelmann, Danilo
    Comte, Pierre
    Czerwinski, Jan
    Renz, Stephan
    Bonsack, Peter
    Powiązania:
    https://bibliotekanauki.pl/articles/2097481.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    alternative fuels
    non-legislated emissions
    ultrafine particles
    diesel particle filter
    cold start emissions
    paliwa alternatywne
    nieregulowane emisje
    cząstki ultradrobne
    filtr cząstek stałych
    emisje zimne
    Opis:
    Biofuels represent one of the alternatives to obtain the CO2 - neutral propulsion of IC-engines. Butanol, which can be produced from biomass, is considered and was investigated in the last years due to the very advantageous characteristics of this alternative fuel. Butanol can be easily and irreversibly blended both with light (gasoline) and heavier (diesel) fuels. Comparing with ethanol it has the advantages of: higher calorific value, lower hygroscopicity and lower corrosivity. It can replace the aviation fuels. This paper presents the emission results obtained on two diesel passenger cars with different technology (Euro 2 and Euro 6c) and with addition of butanol to diesel fuel, as a part of the research project DiBut (diesel and butanol). Interesting results are given about some non-legislated (non-regulated) components, acetaldehyde (MeCHO) and formaldehyde (HCHO) and about the PN-emissions with/without DPF.
    Źródło:
    Combustion Engines; 2020, 59, 4; 29--38
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problems of selecting filter partition in passenger car engine intake air filters
    Autorzy:
    Dziubak, Tadeusz
    Bąkała, Leszek
    Powiązania:
    https://bibliotekanauki.pl/articles/2097515.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    combustion engines
    air filter
    pleated filter cartridge
    separation speed
    pressure drop
    dust absorption coefficient
    silniki spalinowe
    filtr powietrza
    plisowany wkład filtrujący
    prędkość separacji
    spadek ciśnienia
    współczynnik chłonności pyłu
    Opis:
    The aim of this study was to verify the criteria for selecting pleated filter partitions used in passenger car engine filters. The paper presents the problem of optimizing pleated air filters in the direction of minimizing pressure drop, which is the source of engine energy losses. Two criteria for selection of a paper filter partition for specific operating conditions of the filter and the engine are presented: criterion of permissible separation speed and criterion of permissible pressure drop. The actual filtration area of 44 paper pleated filter elements used in passenger cars and the air stream flowing through the filter were determined, which made it possible to calculate separation speed. In 62% of the analyzed filter inserts, the calculated separation speeds are within the speed range recommended by the constructors, ʋFmax = 0.06-0.12 m/s. Exceeding permissible separation speed ʋFmax = 0.12 m/s was found mainly in supercharged engines. Negative effects of engine operation with an air filter with too small separation area are presented, in the form of increased pressure drop and energy loss of the engine as well as shorter car mileage to reach permissible pressure drop.
    Źródło:
    Combustion Engines; 2021, 60, 2; 44--58
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes of properties of engine oils diluted with diesel oil under real operating conditions
    Autorzy:
    Wolak, A.
    Zając, G.
    Żółty, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/973129.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    oil condition monitoring
    lubricant properties
    diesel particulate filter
    DPF
    degradation
    reliability
    dilution of the lubricating oil
    monitorowanie stanu olejów
    właściwości smarne
    filtr cząstek stałych silnika Diesla
    degradacja
    niezawodność
    rozcieńczenie oleju smarowego
    Opis:
    The aim of the article was to analyze changes in the trends of selected physical, chemical and functional properties of lubricating engine oil operating in a diesel-engine vehicle equipped with DPF. The vehicle was operated mainly in urban driving conditions (app. 70%), which impeded the DPF regeneration cycle and caused dilution of oil with unburned fuel. Changes in the following physical and chemical properties were assessed: the DF level in engine oil, viscosity (kinematic, dynamic HTHS and structural CCS), total base number, acid number as well as the degree of oxidation, nitration and sulphonation. The tests have shown that the amount of unburned fuel that goes to the engine crankcase due to the unfinished DPF regeneration cycle is as high as 26.0-34.6%. Dilution of the lubricating oil with fuel leads to a significant reduction of its viscosity - about 30% of the fuel content causes a decrease in the kinematic viscosity measured at 100°C to the level of 7.7 mm2/s. There was also a significant decrease in total base number (TBN) < 2 mg KOH/g, and an increase in the total acid number (TAN). Moreover, the results obtained were analyzed for potential effects that could have been caused during prolonged engine operation by assessing the content of trace elements in the samples taken.
    Źródło:
    Combustion Engines; 2018, 57, 2; 34-40
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Operational properties of performance engine intake air cleaners
    Autorzy:
    Dziubak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/133109.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    combustion engine
    air cleaner
    efficiency of filtration
    accuracy of filtration
    filter element flow resistance
    size of the dust grains
    silnik spalinowy
    filtr powietrza
    skuteczność filtracji
    dokładność filtracji
    rozmiar ziaren pyłu
    Opis:
    The paper presents an analysis of the design of air cleaners in performance vehicles. The paper confirms that their fundamental property is a much lower flow resistance compared to standard air cleaners. The consequences of replacing a standard air filter element with a performance one have been described. The impact of this modification i.e. an increase (decrease) in the engine torque and power output has been shown. A need to perform tests related to the filtration properties of performance air cleaners has been indicated. A methodology of laboratory research has been developed for performance vehicle air cleaners. The results of the research on the filtration efficiency and accuracy characteristics have been presented along with the flow resistance of air filter elements/air cleaners depending on the dust absorbance coefficient km. The accuracy of the filter element has been evaluated following a Pamas particle counter measurement.
    Źródło:
    Combustion Engines; 2018, 57, 1; 25-34
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Minimizing indoor infection risks with automotive nanofiltration and with laminar vertical flow
    Autorzy:
    Czerwiński, Jan
    Mayer, Andreas
    Mayer, Jörg
    Burtscher, Heinz
    Lutz, Thomas
    Mayer, Rainer
    Rothen-Rutishauser, Barbara
    Frey, Joachim
    Lämmle, Christian
    Rüggeberg, Tobias
    Specht, Patrick
    Powiązania:
    https://bibliotekanauki.pl/articles/24202467.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    ventilation for virus protection
    vertical laminar flow
    nanoparticle separation
    virus deactivation
    ceramic honeycomb wall flow filter
    nanofiltration
    wentylacja dla ochrony przeciwwirusowej
    pionowy przepływ laminarny
    rozdzielanie nanocząstek
    dezaktywacja wirusa
    filtr ceramiczny o strukturze plastra miodu
    nanofiltracja
    Opis:
    The knowledge about nanoaerosols, their potential health effects, their measurement, limitation and administrative-legal treatment has been developed in the last 3 decades in connection with the exhaust gas cleaning of the combustion engines. Nanofiltration, which has thus become known, almost completely eliminates nanoparticles with filters of high durability, high specific filtration areas, and reasonable costs. On the occasion of the Covid pandemic, NanoCleanAir experimentally proved that the viruses in an automotive filter substrate are separated as well as the combustion particles and are also deactivated. To minimize cross exchange of infectious aerosol, new attention must be paid to flow management in ventilated spaces. Digitized flow analysis has also received significant inspiration from engine technology in the past. This paper provides information on some basic investigations and gives valuable advice based on the experimental and numerical results of a retrofitted classroom.
    Źródło:
    Combustion Engines; 2023, 62, 3; 68--77
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Directions in vehicle efficiency and emissions
    Autorzy:
    Johnson, T. V.
    Joshi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/133977.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    greenhouse gases
    vehicle emissions
    regulations
    engines
    aftertreatment
    NOx
    diesel oxidation catalyst
    selective catalytic reduction
    diesel particulate filter
    gasoline particulate filter
    gazy cieplarniane
    przepisy prawne
    silniki
    katalizator utleniania oleju napędowego
    selektywna redukcja katalityczna
    filtr cząstek stałych
    Opis:
    This paper provides a general review of light-duty (LD) and heavy-duty (HD) regulations, engine technology, and key emission control strategies. The US is placing a stronger emphasis on laboratory emissions, and the LD regulations are about an order of magnitude tighter than Euro 6, but Europe is focusing on real-world reductions. The California HD low-NOx regulation is advancing and may be proposed in 2017/18 for implementation in 2023+. The second phase of US HD greenhouse gas regulations propose another 25-30% tightening beyond Phase 1, beginning in 2021. LD and HD engine technology continues showing marked improvements in engine efficiency. LD gasoline concepts are closing the gap with diesel. HD engines are demonstrating more than 50% BTE using methods that can reasonably be commercialized. LD and HD diesel NOx technology trends are also summarized. NOx storage catalysts and SCR combinations are the lead approach to meeting the LD regulations. Numerous advanced NOx technologies are being evaluated and some promise for meeting the California HD low NOx targets. Oxidation catalysts are improved for both diesel and methane oxidation applications. Gasoline particulate filters (GPF) are the lead approach to reducing particles from gasoline direct injection (GDI) engines. They reduce PAH emissions, and catalyzed versions can be designed for low back pressure. Regeneration largely occurs during hot decelerations.
    Źródło:
    Combustion Engines; 2016, 55, 3; 3-8
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Properties of material with nanofiber layer used for filtering the inlet air of internal combustion engines
    Autorzy:
    Dziubak, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/134154.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    engine
    air filter
    filtration materials
    nanofiber filter media
    filtration efficiency
    filtration performance
    pressure drop
    dust mass loading
    silnik
    filtr powietrza
    materiały filtracyjne
    nanowłókniste media filtracyjne
    skuteczność filtracji
    wydajność filtracji
    spadek ciśnienia
    współczynnik chłonności pyłu
    Opis:
    Nanofiber properties, and the possibilities of their application in industry, including the production of car air intake filtration materials for vehicle engines are discussed. The attention is paid to the low efficiency of standard filtration materials based on cellulose in the range of dust grains below 5 μm. The properties of filtration materials with nanofibers addition are described. The conditions, and methodology of material filter paper tests at the station with particle counter were developed. Studies on the filtration characteristics, such as: efficiency, accuracy, as well as pressure drop of filtration materials differing in structure were made: standard paper, cellulose, and these materials with the addition of nanofibers. These are commonly used filter materials for filter inserts production of car air intake systems. Test results show significantly higher values of the efficiency, and filtration accuracy of materials with nanofiber layer addition of dust grains below 5 μm in comparison with standard filter paper. It was found that there are 16 μm dust grains in the air flow behind the insert made out of cellulose, which may be the reason for the accelerated wear of the engine's "piston-piston ring-cylinder" association. Lower values of dust mass loading coefficient km for filtration materials with the addition of nanofiber layer, in relation to standard filter paper were observed.
    Źródło:
    Combustion Engines; 2019, 58, 2; 66-75
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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