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    Wyświetlanie 1-4 z 4
    Tytuł:
    Estimation of fuel consumption in a jet engine based on vibration signal parameters
    Autorzy:
    Szymański, Grzegorz M.
    Cywka, Bartłomiej
    Mokrzan, Daniel
    Prokopowicz, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/24202474.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    vibroacoustics
    jet engine
    fuel consumption
    estimation
    statistical analysis
    wibroakustyka
    silnik odrzutowy
    zużycie paliwa
    szacowanie
    analiza statystyczna
    Opis:
    This paper proposes the use of vibroacoustic signal parameters to estimate the fuel consumption of a miniature GTM-400 engine. The method for testing engine vibrations is presented, followed by an analysis of the results obtained. Two vibration point measures were selected to build a fuel consumption model. The models obtained were verified, after which those that best describe the real fuel consumption of the engine were selected. The paper proves that the vibration signal, in addition to its applications in jet engine diagnostics, can be used to determine engine performance, which can contribute to reducing the complexity of construction and increasing the economics of engine operation.
    Źródło:
    Combustion Engines; 2023, 62, 3; 13--20
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Usage of wing in ground effect to maintain lift force with reduced fuel consumption of aircraft
    Autorzy:
    Rojewski, A.
    Bartoszewicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/133656.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    ekranoplan
    numerical analysis
    fuel consumption
    jet engine
    energy consumption
    analiza numeryczna
    zużycie paliwa
    silnik odrzutowy
    zużycie energii
    Opis:
    The main purpose of this article was to point out causes of reduced fuel consumption in aircraft jet engine when aircraft is in ground effect influence. Wing in ground effect occurs in the direct proximity of ground. The paper presents wing in ground effect description, with the numerical analysis of NACA M8 airfoil in three different conditions of flight. Numerical analysis was conduct in Ansys Fluent 17.2 software. The paper shows results of simulations which describes wing in ground effect influence on NACA M8 airfoil with two cases of jet engine exhaust gasses usage, first with exhaust gasses stream turns on upper airfoil surface, and second with exhaust gasses stream turns under lower airfoil surface. Results allow to define characteristics of NACA M8 airfoil in the influence of wing in ground effect which are lift coefficient, drag coefficient, drop of fuel consumption usage by the jet engine when lift force remains still in the wing in ground effect. The paper shows that in the wing in ground effect aircraft energy usage for flight in ground effect is smaller than for free air flight.
    Źródło:
    Combustion Engines; 2017, 56, 2; 158-161
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Emission of selected exhaust compounds in jet engines of a jet aircraft in cruise phase
    Autorzy:
    Pawlak, M.
    Majka, A.
    Kuźniar, M.
    Pawluczy, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/134256.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    jet engine
    emission
    fuel consumption
    cruise phase
    ATM
    SESAR
    silnik odrzutowy
    emisja
    zużycie paliwa
    faza rejsu
    zarządzanie ruchem lotniczym
    Opis:
    Nowadays, air transport is in an intense development phase. In order to optimize air communication and make it even more economical and environmentally friendly, attempts are made to undertake such activities as, e.g., SESAR project, which aims to develop and implement a modern ATM system. One of the parts of this project is the research on minimizing fuel consumption and emissions of pollutants in the engine exhausts. In the paper there is therefore presented the methodology for determining emission of those pollutants for the longest stage of the flight - the cruise phase. First, the value of the thrust required for the flight of an exemplary aircraft was deter-mined, and then the values of the engines trust and specific fuel consumption were computed. Additionally, it was necessary to determine the Emission Indexes (EI) of CO, NOx, HC and CO2 for the cruise phase, based on known such indexes for the LTO. Total emissions of these pollutants for the mission adopted to conduct research - a 1000 km long cruise - were determined. These emissions were computed for the exemplary aircraft per one kilometre, as well as per one hour of flight for various cruising altitudes and flight speeds.
    Źródło:
    Combustion Engines; 2018, 57, 2; 67-72
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of wind impact on emission of selected exhaust compounds in jet engines of a business jet aircraft in cruise phase
    Autorzy:
    Pawlak, M.
    Majka, A.
    Kuźniar, M.
    Pawluczy, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/134098.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    jet engine
    emission
    exhausts
    fuel consumption
    cruise phase
    Air Traffic Management
    ATM
    SESAR
    silnik odrzutowy
    emisja
    spaliny
    zużycie paliwa
    faza rejsu
    zarządzanie ruchem lotniczym
    Opis:
    Among the most important problems currently faced by air transport, we can distinguish the adverse impact of aircrafts on the natural environment, as well as the rising costs of transport. One of the possibilities to improve this situation is better adjustment of aircraft characteristics to the performed transport tasks, taking into account all the requirements and limitations that exist in air traffic and the adverse impact of air transport on the natural environment. It is reflected in the research tasks conducted under the SESAR program. The aspiration to minimize the adverse impact of aircrafts on the environment is executed, among others, through determining such trajectories that are characterized by minimal fuel consumption or minimal emission of harmful substances in the engines exhausts. These goals are corresponding with the research conducted and described in the paper. The main aim of the work was to analyse the impact of wind speed and direction on the emission of harmful substances of a jet aircraft performing a flight on a given route. For research purposes, the route between two Polish cities Gdansk and Rzeszow was considered. The distance between the two airports was divided into sections for which wind direction and strength were determined (read from the windy.com website). Next, the aircraft performance was determined and the fuel consumption and the amount of harmful compounds (CO2, NOx, CO and HC), emitted in the engines exhausts were determined for the route from Gdansk to Rzeszow (under favourable wind conditions) and on the return route - from Rzeszow to Gdansk (under unfavourable wind conditions). For comparative purposes, emission of these substances for windless conditions was also determined. The results are presented in tables and depicted in the graph, as well as discussed in the conclusions of the paper.
    Źródło:
    Combustion Engines; 2018, 57, 2; 55-60
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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