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Wyszukujesz frazę "hydrogen car" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
The control of the working parameters of car hydrogen fuel cell stack in urban traffic conditions
Autorzy:
Tyczka, M.
Skarka, W.
Powiązania:
https://bibliotekanauki.pl/articles/393687.pdf
Data publikacji:
2016
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
regulation
optimization
hydrogen cell stack
fuel cell stack
hydrogen car
regulacja
optymalizacja
stos ogniw wodorowych
stos ogniw paliwowych
samochód wodorowy
Opis:
The paper describes the study of the control of the hydrogen fuel cell stack for a car, which has been prepared on the example of a light vehicle, built for racing competitions. The issue included of the control of the hydrogen cell stack in the conditions of varied energy demand, occurring during urban traffic and selection of system parameters, using numerical model.
Źródło:
Archives of Transport System Telematics; 2016, 9, 3; 50-54
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perspektywy rozwoju napędów w pojazdach samochodowych
Drive of the future – prospects for the development of drives in motor vehicles
Autorzy:
Murawińska, Angelina
Powiązania:
https://bibliotekanauki.pl/articles/1194469.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
samochód przyszłości
napęd samochodowy
paliwa alternatywne
samochód hybrydowy
samochód elektryczny
samochód wodorowy
car of the future
car drive
alternative fuels
hybrid car
electric car
hydrogen car
Opis:
The subject of the article presents the prospects for the development of drives in motor vehicles. At the beginning of the text, the importance of ecology and sustainable development in the transport sector was discussed. The activities of the European Commission aimed at reducing the emission of harmful compounds into the atmosphere were presented. Then the types of car drives are discussed. The efficiency of each drive as well as advantages and disadvantages for both the environment and the user are well as the development prospects for each of the solutions, their opportunities and threats are indicated.
Źródło:
Journal of TransLogistics; 2020, 6, 1; 125--134
2450-5870
Pojawia się w:
Journal of TransLogistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The possibility of the SI engine CO2 emission reduction with the application of CNG-hydrogen blends
Autorzy:
Flekiewicz, M.
Kubica, G.
Flekiewicz, B.
Powiązania:
https://bibliotekanauki.pl/articles/248095.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
CNG
hydrogen
mixtures
Passenger car engine
combustion analysis
Opis:
The influence of hydrogen-methane blends application in SI engines on their CO2 emission is the main goal of this paper. The 1.6 litre engine alternatively fed with either petrol, CNG and with methane-hydrogen blends has been tested in the research program. The possibility of passenger car engine operation on H2-CH4 mixtures has been demonstrated in the paper, with the underlining of the potential of those mixtures in the increasing of the engine efficiency. Necessary changes in strategy of engine regulation, especially in air/fuel ratio, ignition advance and EGR rate, were noticed and prepared. The methane-hydrogen blends, which were used in the research programme featured ratios as follows: 5%, 10% and 15% of hydrogen. For selected engine operating points, following data has been acquired: in cylinder pressure variation, crank angle, manifold pressure and finally mass fuel consumption. On the basis of registered data for all fuels - burned temperature in cylinder has been estimated, as well as the charge combustion ratio, and the heat release rate. With help of mathematical model describing the exhaust gases formation it has been possible to estimate the NO, CO and CO2 emission level. Obtained results made it possible to compare the combustion process for all tested fuels and pointed on the significant influence of hydrogen percentage for the methane-hydrogen blends, on the CO2 emission reduction up to 20%. Negative aspects of chosen blends application have been also describe in the paper, especially of increasing engine thermal load.
Źródło:
Journal of KONES; 2008, 15, 3; 139-146
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Właściwości czasowo-rozdzielcze słabych międzycząsteczkowych wiązań wodorowych C-H···F
Time-resolved properties of intermolecular C-H···F hydrogen bonds
Autorzy:
Polańska, Marta
Rodziewicz, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/27310029.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
wiązanie wodorowe
teoria funkcjonału gęstości
dynamika molekularna Cara i Parrinello
hydrogen bond
density functional theory
Car-Parrinello molecular dynamics
Opis:
The hydrogen bond is one of the most important and interesting phenomena in nature. In this publication we will shed light on the discovery of hydrogen bond and a time evolution of its definition in the last 100 years. Both structural and spectroscopic parameters of the hydrogen bond will be discussed. A special focus will be given to the latest IUPAC definition of the hydrogen bond and its consequences to scientific research. The main aim of this study is to highlight theoretical studies based on first principles calculations and molecular dynamics simulations which not only support experimental results but also provide parameters which are crucial to understand the nature of hydrogen bonds. Particular attention will be given to methods and theoretical ideas used in the computational studies of hydrogen bonds. Utilizing static DFT/ab initio calculations and molecular dynamics simulations enables comparison of different binding energies and studying time evolution of the hydrogen-bonded molecular system on the atomistic level. We will discuss time-resolved properties of weak intermolecular hydrogen bonds, using as an example C-H···F containing model systems, namely F3CH*(HF)n molecular complexes and (F3CH)2-4 aggregates.
Źródło:
Wiadomości Chemiczne; 2023, 77, 9-10; 899--919
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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