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Wyszukujesz frazę "hybrid-electric propulsion systems" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Prospective alternative propulsion systems for unmanned aerial vehicles
Autorzy:
Orkisz, M
Wołoszyn, T.
Wygonik, P
Powiązania:
https://bibliotekanauki.pl/articles/949507.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
alternative energy sources
hybrid-electric propulsion systems
fuel cells
solar cells
unmanned aerial
vehicles
Opis:
The paper presents selected issues concerning alternative power sources and propulsion systems meant for unmanned aerial vehicles (UAVs). The implementation of new propulsions in aviation is a laborious and long-term process, mostly due to safety and economical restrictions and requirements. Broadly, exploited solutions known from automotive industry may serve as a basis for development in aerospace technology, but cannot be applied without considering specific technical aspects (related to aircraft technology and flying objects physics). These aspects are mentioned in the text and some issues concerning suitability of types of aircraft are described. The paper presented contains a review of research on non-conventional propulsion systems for UAVs, conducted in Rzeszow University of Technology. Selected results of the research the fuel cell and the solar-cell UAVs and the aerial hybrid-electric drive test stand are shown in adequate pictures. The small-unmanned flying objects seem to be an accurate basis for such research. They allow reducing costs and improving safety in comparison to full-scale manned aircraft. They are also much quicker in manufacturing and easier to maintain and repair. Moreover, due to their various applications they may comprise the target market for this kind of propulsions. In particular, the issues of parallel hybrid-electric propulsions, fuel cell and solar-cell-assisted systems with appropriate examples are mentioned in the paper..
Źródło:
Journal of KONES; 2014, 21, 4; 369-374
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Full-electric, hybrid and turbo-electric technologies for future aircraft propulsion systems
Autorzy:
Łukasik, B.
Wiśniowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/243487.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
full electric
turbo-electric
hybrid systems
distributed propulsion systems
Opis:
Recently a huge progress in the field of electrical machines makes them more available for aviation. Assuming a big leap forward of electric technology in the near future, many research institutes around the World examine a revolutionary propulsion system which employs electrical machines. This idea can be a perfect response to a drastically growing air traffic and its demands about emission and fuel consumption reduction. There are already manufactured full electric, ultralight airplanes, which show that the technology is promising and future-proof. What is more it seems to be a key enabler for the development of the other technology that will influence the future of aircraft design and will allow introducing completely new airplane architectures. That is why Institute of Aviation in collaboration with The Ohio State University conducts investigation and analysis on feasibility of using such systems for aircraft propulsion. For this task a completely new tool based on Numerical Propulsion System Simulation (NPSS) environment is being developed. It will enable to analyse the electric devices conjugated with turbine engine as a whole propulsion system in the matter of its performance characteristics. The purpose of this paper is to present some of the most promising ideas and already accomplished analysis of different kinds of architectures. The analysis and optimization of the system, as well as cost effectiveness will be presented.
Źródło:
Journal of KONES; 2016, 23, 4; 305-310
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability evaluation of electrochemical energy storage systems supplying the ships main propulsion system
Autorzy:
Szewczyk, P.
Łebkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/24201455.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
reliability assessment
electric propulsion system
energy storage systems
electric ship
reliability block diagram
probability of failure occurrence
hybrid electric-propulsion system
Opis:
The paper presents the structure of hybrid and electric modern ship propulsion systems. Types and configuration of electrochemical cells for selected electric energy storage facilities on the ship were presented. The method and results of reliability analyses, such as failure mode effect analysis (FMEA), reliability block diagram (RBD) and fault tree analysis (FTA), used to estimate the probability of failure of the energy storage systems supplying the ship's main propulsion, are presented. Methods of evaluation and verification of the proposed reliability model using a laboratory model and available operational and service data are discussed. A proposal for a quantitative risk analysis of potential damage during the operation of the energy storage has been presented.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 87--94
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozwój technologii siłowni okrętowych u progu XXI wieku
Development of Ship Propulsion Plants at the Entry into the XXI Century
Autorzy:
Listewnik, J.
Powiązania:
https://bibliotekanauki.pl/articles/906520.pdf
Data publikacji:
2005
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
turbiny gazow
hybrydowe systemy siłowni okrętowych
nadprzewodnikowe silniki elektryczne
gas turbines
ship propulsion hybrid systems
superconductivity electric motors
Opis:
Artykuł określa kierunki rozwoju siłowni okrętowej po 2000 roku, analizując możliwości szerokiego zastosowania turbin gazowych do napędu statków oraz rozwój rozwiązań układów siłowni podyktowany względami bezpieczeństwa i ochrony środowiska morskiego. W ostatnim rozdziale opisano, planowane w połowie 2006 roku przez japoński koncern IHI, wprowadzenie do eksploatacji silnika elektrycznego pracującego w zakresie nadprzewodnictwa. Omówiono charakterystyczne cechy tego epokowego dokonania.
The paper points out ways of ship propulsion developments after the year 2000, analysing the possibilities of gas turbine application for ship's propulsion, as well as the design of propulsion plants systems fulfilling safety and marine environmental aspects. The last chapter of the paper gives a general description of the introduction into the operation of an electrical motor working in the range of superconductivity by the Japanese Co. IHI. A brief characteristics of this epoch-making achievement is made.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2005, 7 (79); 77-90
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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