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 "hydrogen emission" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-10 z 32
Tytuł:
Energy recuperation as one of the factors improving the energy efficiency of mining battery locomotives
Autorzy:
Polnik, Bartosz
Kaczmarczyk, Krzysztof
Niedworok, Andrzej
Baltes, Ralph
Clausen, Elisabeth
Powiązania:
https://bibliotekanauki.pl/articles/410039.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
battery supply
energy recuperation
hydrogen emission
mine locomotive unit
PMSM drive
Opis:
Mining industry is currently one of the biggest industries in the world. All mines produce “indispensable” minerals, starting from fuels such as coal and ending with noble metals such as gold or copper. Mines in the world compete in the volumes of mined minerals what requires use of state-of-the-art, more efficient and, and what is more important, safer machines. Such trend favors development of technology and mobilize engineers to adapt the technologies that were used so far in easier environment to the needs of the mining industry. The article presents the issue of energy recuperation in mining battery locomotives. Simulation tests of the power supply and control system of the Lea type battery locomotive are discussed. The results of tests on the electric energy consumption of the locomotive during the operational change in the mine were presented, which were referred to the simulation results. Factors influencing the efficiency of energy recovery and the risk resulting from hydrogen emission in the recuperation process have been indicated. Also discussed is the study of the concentration of hydrogen concentration emitted from the battery of lead-acid cells during their recharging in the process of electrical braking with energy recuperation.
Źródło:
Management Systems in Production Engineering; 2020, 4 (28); 253-258
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emisja wodoru w układach magazynowania energii wielokrotnego ładowania – wybrane przypadki
Hydrogen emission in rechargeable energy storage system – selected cases
Autorzy:
Szlęzak, M.
Taubert, S.
Powiązania:
https://bibliotekanauki.pl/articles/1199576.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
emisja wodoru
baterie
prostowniki
pojazdy elektryczne
hydrogen emission
batteries
chargers
electric vehicles
Opis:
The subject of hydrogen emission is associated with the type of system used for rechargeable energy storage. This issue is gaining importance in the face of the evolution, on an industrial scale, of the vehicles with combustion engines into the electric ones and their safe operation in a diverse environment. The study analyzes the state of the legal requirements for electric vehicles and in particular for the L7e category based on the current regulations of the delegated EU committees as well as the UN-ECE Regulation No. 100. The article presents the results of the evaluating hydrogen emission, by analytical method as well as an alternative test method. The proposed alternative test method of measuring the emissions of hydrogen from energy storage systems, based on the weighting, is an attempt to refer to the method described in the regulations as well as the analytical method. An alternative method of testing hydrogen emission from the energy storage systems is an essence in the absence of access, on the domestic market, to the specialized chamber with dedicated testing equipment. The paper also describes the problems and solutions of the fault simulation of the charging device of the energy storage system based on the open type semi-traction battery. The summary provides further directions of the development of methodology for measuring hydrogen emission.
Problematyka emisji wodoru jest związana z typem zastosowanego układu do magazynowania energii wielokrotnego ładowania. Zagadnienie to nabiera istotnego znaczenia w obliczu ewolucji na skalę przemysłową pojazdów z napędem spalinowym na elektryczny i ich bezpieczną eksploatację w zróżnicowanym środowisku. W pracy dokonano analizy stanu wymogów prawnych dla pojazdów elektrycznych, a w szczególności dla kategorii L7e, na podstawie aktualnych rozporządzeń delegowanych Komisji UE, jakrównież Regulaminu 100 EKG ONZ. Artykuł prezentuje wyniki oceny emisji wodoru metodą analityczną, jak również alternatywną metodą badań. Zaproponowana alternatywna metoda badań pomiaru wartości emisji wodoru z układów magazynowania energii w oparciu o ważenie stanowi próbę odniesienia się do metody opisanej w regulaminie, jak również do metody analitycznej. Alternatywna metoda badań emisji wodoru z układów magazynowania energii stanowi istotę w przypadku braku dostępu na rynku krajowym do specjalistycznej komory z dedykowaną aparaturą badawczą. Praca opisuje również problemy i rozwiązania symulacji stanów awarii urządzenia ładowania układu magazynowania energii opartego o baterię małej trakcji typu otwartego. W podsumowaniu zawarto dalsze kierunki rozwoju metodologii pomiaru emisji wodoru.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2017, 1, 113; 189-194
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jakość energii elektrycznej napędów górniczych lokomotyw akumulatorowych w aspekcie emisji gazu elektrolitycznego
Power quality of the mining battery locomotive drives in the terms of electrolytic gas emission
Autorzy:
Polnik, B.
Powiązania:
https://bibliotekanauki.pl/articles/1367958.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
górnictwo
lokomotywa
napęd elektryczny
emisja wodoru
rekuperacja energii
mining
locomotive
electric drive
hydrogen emission
energy recuperation
Opis:
The paper describes the problems that entails the process of recuperation of energy during regenerative braking mining locomotive battery. The advantages and disadvantages that are associated with Energy recovery as well as the directions of the development of power supply and control systems of mining battery locomotive are discussed. Great attention was paid to operational tests the goal of which eas to register the properties of the component parameters of electricity, which is returned to the battery during operation in the system with recuperation of energy, while simultaneously monitoring the level of electrolytic gas concentration. Paper presents the research method and the results obtained during the study.
W referacie opisano problematykę jaką niesie za sobą proces rekuperacji energii podczas hamowania odzyskowego górniczej lokomotywy akumulatorowej. Omówiono zalety i wady jakie wiążą się z odzyskiem energii a także wskazano kierunki rozwoju układów zasilająco-sterujących górniczych lokomotyw akumulatorowych. Dużą uwagę poświęcono badaniom eksploatacyjnym, mającym na celu zarejestrowanie właściwości parametrów składowych energii elektrycznej, zwracanej do baterii akumulatorów podczas pracy w układzie z rekuperacja energii, przy jednoczesnym monitorowaniu poziomu stężenia gazu elektrolitycznego. Przedstawiono metodę badawczą oraz zaprezentowano wyniki uzyskane podczas badań.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2015, 2, 106; 73-78
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szacowanie właściwości termodynamicznych i termochemicznych stałych heterogenicznych paliw rakietowych zawierających związki neutralizujące
Estimation of thermodynamic and thermochemical properties of solid heterogeneous rocket propellants containing scavengers
Autorzy:
Gańczyk-Specjalska, Katarzyna
Bogusz, Rafał
Lewczuk, Rafał
Magnuszewska, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/235452.pdf
Data publikacji:
2019
Wydawca:
Wojskowy Instytut Techniczny Uzbrojenia
Tematy:
paliwa rakietowe stałe
paliwa heterogeniczne
związki neutralizujące
emisja chlorowodoru
dymy wtórne
solid rocket propellants
heterogeneous propellants
scavengers
hydrogen chloride emission
secondary smokes
Opis:
Nowym trendem w rozwoju stałych heterogenicznych paliw rakietowych (SHPR) jest obniżenie emisji gazów, powstających w trakcie spalania tych paliw powodujących pozostawianie śladu za dyszą rakiety, który tworzy się w wyniku kondensacji produktów spalania, m.in. chlorowodoru. Zgodnie z klasyfikacją AGARD powstające dymy nazywamy dymami wtórnymi. SHPR na bazie chloranu(VII) amonu (powszechnie stosowanego utleniacza) wytwarzają znaczne ilości chlorowodoru w produktach spalania. Istnieją różne metody na obniżenie emisji dymów wtórnych. Jedną z nich jest wprowadzenie do SHPR związków neutralizujących. Jako związki neutralizujące stosuje się sole metali ziem alkalicznych. Przeprowadzono szacowanie właściwości termodynamicznych i termochemicznych SHPR zawierających wybrane związki neutralizujące z wykorzystaniem programu ICT-Code (The ICT-Thermodynamic Code). Określono wpływ różnych związków neutralizujących i ich ilości na wybrane właściwości, m.in. na bilans tlenowy, gęstość, kaloryczność, impuls właściwy i ilość chlorowodoru w produktach spalania.
A new trend in development of solid heterogeneous rocket propellants (SHRP) is a reduction of emission of gases, generated during combustion of propellants, leaving a trace of white smoke behind the nozzle as a result of condensation of combustion products including above all the hydrogen chloride. This smoke is called as secondary smoke in accordance with the AGARD classification. The SHRP based on ammonium perchlorate (commonly used oxidizer) generates significant amounts of hydrogen chloride in combustion products. There are various methods to reduce the emission of secondary smokes – one of them is the addition of scavengers to SHRP. Alkaline earth metal salts are used as scavengers. The estimation of thermodynamic and thermochemical properties of SHRP containing selected scavengers was carried out by using the ICT-Code software (The ICT-Thermodynamic Code). The influence of different scavengers and their amount on selected properties, e.g. oxygen balance, density, caloricity, specific impulse, and amount of hydrogen chloride in combustion products, was determined.
Źródło:
Problemy Techniki Uzbrojenia; 2019, 48, 150; 59-70
1230-3801
Pojawia się w:
Problemy Techniki Uzbrojenia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogen as fuel in operation of internal combustion engines
Autorzy:
Kruczyński, S.
Ślęzak, M.
Gis, W.
Powiązania:
https://bibliotekanauki.pl/articles/242013.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
exhaust emission
ecology
hydrogen
engines
vehicles
Opis:
Hydrogen internal combustion engines (HICE) are presently the subject of numerous R&D projects. For hydrogen fuelling mainly, spark-ignition engines are adapted but it is also possible to adjust self-ignition engines. Self-ignition engines may be fuelled only with dual-fuels and usually demonstrate an oversized level of compression ratio requiring reduction because of engine knocking, whereas spark-ignition engines – on the contrary feature an undersized level of compression ratio that needs to be increased to ensure an effective combustion process. Hydrogen may be used also for gasoline dual-fuel engines. Hydrogen utilization as diesel engine fuel should be considered depending on the type of diesel cycle: 1.The use of hydrogen alone or as an addition to gasoline or LPG and methane in spark-ignition engines; 2.The use of hydrogen as an addition to diesel oil in self-ignition engines. In the paper are presented the review of the literature on the use only of hydrogen as a fuel or only of the additionof hydrogen to hydrocarbon fuels in engines with spark ignition and diesel. Have been studied combustion process, generation of heat and power, and efficiency of the engine. Have been evaluated opportunities to reduce harmful emissions. Have been evaluated possibilities of using hydrogen as a fuel for both type of engines. In the paper are presented the review use hydrogen as a fuel for vehicles with fuel cells too.
Źródło:
Journal of KONES; 2016, 23, 4; 237-244
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In-cylinder combustion analysis of a SI engine fuelled with hydrogen enriched compressed natural gas (HCNG) : engine performance, efficiency and emissions
Autorzy:
Juknelevičius, R.
Mehra, R.K.
Ma, F.
Szwaja, S.
Powiązania:
https://bibliotekanauki.pl/articles/245683.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
hydrogen
CNG
SI engine
combustion
emission
MFB
Opis:
The main objective of this study was to investigate the effect of hydrogen addition on spark ignition (SI) engine’s performance, thermal efficiency, and emission using variable composition hydrogen/CNG mixtures. The hydrogen was used in amounts of 0%, 20%, 40% by volume fraction at each engine speed and load. Experimental analysis was performed at engine speed of 1200 rpm, load of 120 Nm corresponding BMEP = 0.24 MPa, spark timing 26 CAD BTDC, and at engine speed of 2000 rpm, load of 350 Nm corresponding BMEP = 0.71 MPa, spark timing 22 CAD BTDC. The investigation results show that increasing amounts of hydrogen volume fraction contribute to shorten ignition delay time and decrease of the combustion duration, that also affect main combustion phase. The combustion duration analysis of mass fraction burned (MFB) was presented in the article. Decrease of CO2 in the exhaust gases was observed with increase of hydrogen amounts to the engine. However, nitrogen oxides (NOX) were found to increase with hydrogen addition if spark timing was not optimized according to hydrogen’s higher burning speed.
Źródło:
Journal of KONES; 2018, 25, 3; 253-260
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A numerical and experimental study of marine hydrogen–natural gas–diesel tri–fuel engines
Autorzy:
Zhao, Rui
Xu, Leping
Su, Xiangwen
Feng, Shiquan
Li, Changxiong
Tan, Qinming
Wang, Zhongcheng
Powiązania:
https://bibliotekanauki.pl/articles/1573839.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydrogen
tri-fuel engine
combustion performance
emission performance
Opis:
Maritime shipping is a key component of the global economy, representing 80–90% of international trade. To deal with the energy crisis and marine environmental pollution, hydrogen-natural gas-diesel tri-fuel engines have become an attractive option for use in the maritime industry. In this study, numerical simulations and experimental tests were used to evaluate the effects of different hydrogen ratios on the combustion and emissions from these engines. The results show that, in terms of combustion performance, as the hydrogen proportion increases, the combustion ignition delay time in the cylinder decreases and the laminar flame speed increases. The pressure and temperature in the cylinder increase and the temperature field distribution expands more rapidly with a higher hydrogen ratio. This means that the tri-fuel engine (H2 +CH4 +Diesel) has a faster response and better power performance than the dual-fuel engine (CH4 +Diesel). In terms of emission performance, as the hydrogen proportion increases, the NO emissions increase, and CO and CO2 emissions decrease. If factors such as methane escape into the atmosphere from the engine are considered, the contribution of marine tri-fuel engines to reducing ship exhaust emissions will be even more significant. Therefore, this study shows that marine hydrogen-natural gas-diesel tri-fuel engines have significant application and research prospects.
Źródło:
Polish Maritime Research; 2020, 4; 80-90
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adoption of Modern Hydrogen Technologies in Rail Transport
Autorzy:
Stobnicki, Paweł
Gallas, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/2068465.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
exhaust emission
hydrogen fuel
fuel cell
rail transport
hydrail
Opis:
Many new zero-emission propulsion technologies are being developed today due to the need to reduce the atmospheric carbon dioxide emissions. The impact of the transport sector on the environment drives a need for innovation, including innovation in the rail transport sector specifically. At the TRAKO fair of rail vehicles the newest technological solutions have been presented. These new vehicles are expected to take over the rail transport sector in the coming decades. Many of the presented solutions and prototypes focused on using hydrogen as fuel for a system of hydrogen fuel cells, which are then used to produce the electricity needed to drive the vehicle. The development of hydrogen fuel technologies in vehicle drives in recent years allowed for a set of new solutions to appear for all types of rail vehicles and applications. Hydrogen powered rail vehicles for transporting cargo, passengers, and shunting vehicles have been shown. This article provides a discussion of the newest hydrogen solutions and vehicles sent to the market. It was determined that the adoption of such solutions will be mainly restricted by the relative cost of the hydrogen fuel rather than the vehicles or fuel cell technologies themselves. The cost of hydrogen production, when powered by renewable Energy sources to enable reduced carbon dioxide emissions, would need to be reduced to at least $2.50 /kg of fuel in order to satisfy the requirements for widespread adoption.
Źródło:
Journal of Ecological Engineering; 2022, 23, 3; 84--91
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development project of a hydrogen fuelled internal combustion engine for heavy duty truck - outline and preliminary test
Autorzy:
Sato, Y.
Yanai, T.
Goto, Y.
Powiązania:
https://bibliotekanauki.pl/articles/246354.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
combustion engine
hydrogen engine
direct injection
NOx emission
NOx reduction catalyst
Opis:
The hydrogen fuelled internal combustion engine represent a promising solution to the issues of global warming, fossil fuel break point and environmental protection. The development of a hydrogen fuelled internal combustion engine for heavy-duty truck has been being carried out at Hydrogen Energy Research Centre (HERC) of Musashi Institute of Technology and National Traffic Safety and Environment Laboratory (NTSEL) since FY 2005 in the Next-Generation, Low-Emission Vehicle Development - Practical Implementation Project (EFV21) of Ministry of Land, Infrastructure and Transport (MLIT). As the most important key technology, the development of the common-rail type electronic high pressure hydrogen injectors is performed. Now the development of a hydrogen fuelled engine with 6 cylinders, the total displacement of 7.7 litters, direct injection and spark ignition is about to start. In this paper, the development concept, the characteristics of the injectors, some performance in the engine output power and the effects of nox reduction catalyst ever obtained experimentally by using a single cylinder engine are demonstrated.
Źródło:
Journal of KONES; 2007, 14, 3; 543-549
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogen use in Poland in the light of EU policy to move away from coal: the concepts of hydrogen valleys and smart and sustainable cities
Autorzy:
Bałamut, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2170026.pdf
Data publikacji:
2022
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
EU
Polska
management
hydrogen valleys
Smart City
clusters
competitiveness
low-emission
Opis:
Hydrogen can be used in several ways, including as a raw material, fuel or as an energy carrier. Therefore, hydrogen becomes an object of interest not only to companies, but also to individual governments. The European Union (EU) promotes low-emission solutions, which entails giving up fossil fuels and adapting the energy mix to renewable energy. In addition, the war in Ukraine is reshaping relations on the energy market in Europe and beyond. The well-known concept of diversification takes on a new meaning, it is combined with efficiency and competitiveness in the event of a change in the directions and sources of energy. It should be emphasized that no CO2 emissions are generated when using hydrogen. This fact becomes a passport to the implementation of the EU’s low-emission goals by 2050. Poland is not energy self-sufficient, additionally it still bases its energy mix on fossil fuels, which consequently raises concerns about meeting the EU guidelines. Therefore, the aim of the study is, inter alia, showing the prospects for the implementation of the so-called hydrogen valleys and sustainable smart cities, as alternatives to, for example, EU guidelines, dependence of supplies on the Russian monopoly, inefficiency and inactivity of the energy sector in the long term. For the purposes of this analysis, a hypothesis has been formulated, which assumes that the use of hydrogen in the economy will significantly improve Poland’s energy security in the long term. The following research question was asked: Will Poland use hydrogen as a solution to meet the EU requirements for a zero-emission economy?
Źródło:
Bezpieczeństwo. Teoria i Praktyka; 2022, XLVII, 2; 61-73
1899-6264
2451-0718
Pojawia się w:
Bezpieczeństwo. Teoria i Praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 32

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