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    Wyświetlanie 1-6 z 6
    Tytuł:
    Use of hydrogen fuel in drive systems of rail vehicles
    Autorzy:
    Pielecha, Ireneusz
    Engelmann, Danilo
    Czerwinski, Jan
    Merkisz, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/33317409.pdf
    Data publikacji:
    2022-05-24
    Wydawca:
    Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
    Tematy:
    Hydrogen
    Hydrogen properties
    Hydrogen storage
    Hydrogen powered combustion engines
    Opis:
    The search for substitutes for modern fossil fuels incentivises the use of new propulsion systems (hybrid or electric) and the use of new fuels (gaseous, mainly hydrogen). The article discusses the basic issues related to hydrogen fuel: from its extraction, through the discussion of its properties to its use and applications. Analyzes of the energy consumption involved in its extraction or production were presented, classifying hydrogen in those terms. Great emphasis was placed on design solutions for the use of hydrogen in internal combustion engines, together with discussing the concept of its combustion. The methods of storing hydrogen in a condensed and compressed form were also presented, indicating at the same time the most modern solutions available, such as mixed systems – storage in cryo-compressed form. It has been shown that the combustion of hydrogen in internal combustion engines increases their efficiency, and at the same time significantly reduces the exhaust emissions of toxic gases – including the emission of nitrogen oxides.
    Źródło:
    Rail Vehicles/Pojazdy Szynowe; 2022, 1-2; 10-19
    0138-0370
    2719-9630
    Pojawia się w:
    Rail Vehicles/Pojazdy Szynowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influences of special driving situations on emissions of passenger cars
    Autorzy:
    Engelmann, Danilo
    Hüssy, Andreas
    Comte, Pierre
    Czerwinski, Jan
    Bonsack, Peter
    Powiązania:
    https://bibliotekanauki.pl/articles/2097509.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    emissions at cold start
    warm-up
    RDE
    portion of idling
    Stop&Go
    emisja po zimnym rozruchu
    nagrzewanie
    bieg jałowy
    Opis:
    Testing of real driving emissions (RDE) offers the opportunity to collect the data about the emissions in special driving, or non-driving situations. These situations are: cold start, warm-up of the engine, stop & go and idling. In the present work, the definitions of the special driving situations were proposed, the emissions of 7 passenger cars (gasoline & Diesel) were extracted from the present RDE data and some special driving situations, particularly the stop & go operation with varying share of idling were reproduced on chassis dynamometer. As expected, the emissions of CO, NOx and PN are in the cold start and in the first part of the warm-up phase (ca. 25 s) considerably higher than in the rest of the investigated urban phase. The singular emitting situations like “stop&go” or idling occur frequently in the warm-up phase, i.e. in the city operation when the engine and the exhaust system are still not warm enough.
    Źródło:
    Combustion Engines; 2021, 60, 1; 41--51
    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:
    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:
    Methods and Proposals for Meeting Energy Needs
    Autorzy:
    Grebski, Wes
    Czerwiński, Stefan
    Kania, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/2064346.pdf
    Data publikacji:
    2020
    Wydawca:
    STE GROUP
    Tematy:
    energy consumption
    energy economy
    energy fuels
    power plants
    renewable energy
    zużycie energii
    oszczędność energii
    paliwa energetyczne
    elektrownie
    energia odnawialna
    Opis:
    The article includes a comparative analysis of different methods of solving energy problems especially meeting the demand for electricity. Energy problems became a global concern due to the rapid increase in the world population. Energy consumption reflects the habits of the society and the nature of the economy. The focus of the article is the analysis of the United States (USA) energy economy in terms of meeting the needs of industry and society. It includes a comparison of costs of generating electricity obtained from various sources. It also includes an analysis of opportunities and threats related to the energy sector’s dependence on individual energy sources. Meeting the demand for electricity cannot be solved by increasing only the energy generation. The cost of increasing electricity production is always higher compared to increasing energy efficiency. The impact of energy efficiency of devices on energy management was also assessed. The publication also contains practical conclusions and recommendations regarding energy management on a global scale.
    Źródło:
    New Trends in Production Engineering; 2020, 3, 1; 98--109
    2545-2843
    Pojawia się w:
    New Trends in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the vibration measurement and reduction possibilities in linear infrastructure for vacuum rail technology
    Autorzy:
    Korbiel, Tomasz
    Rumin, Rafał
    Blaut, Jędrzej
    Czerwiński, Stefan
    Kania, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/2064296.pdf
    Data publikacji:
    2020
    Wydawca:
    STE GROUP
    Tematy:
    vibration
    hyperloop
    low-pressure ultra-speed trains
    vactrain
    wibracja
    pociąg ultraszybki
    pociąg wakacyjny
    Opis:
    The paper presents the concept of vibration measurement and reduction system for rails in hyperloop technology. It is based on the experience of measuring vibrations in high-speed rail, the first commercial magnetic rail, and vibration reduction systems for these rails. The authors outlined a conceptual vibration monitoring system based on the MQTT protocol and the vibration reduction method. The vibration reduction systems based on variable-characteristic silencers and solutions used in research centers, especially in CERNie and LIGO, were de-scribed.
    Źródło:
    New Trends in Production Engineering; 2020, 3, 1; 450--461
    2545-2843
    Pojawia się w:
    New Trends in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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