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 "gas-chamber" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-12 z 12
    Tytuł:
    Investigations of the working process in a dual-fuel low-emission combustion chamber for an FPSO gas turbine engine
    Autorzy:
    Serbin, Serhiy
    Diasamidze, Badri
    Dzida, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/1585065.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    gas turbine engine
    dual-fuel combustion
    combustion chamber
    liquid fuel
    Opis:
    This investigation is devoted to an analysis of the working process in a dual-fuel low-emission combustion chamber for a floating vessel’s gas turbine. The low-emission gas turbine combustion chamber with partial pre-mixing of fuel and air inside the outer and inner radial-axial swirlers was chosen as the object of research. When modelling processes in a dualflow low-emission gas turbine combustion chamber, a generalized method is used, based on the numerical solution of the system of conservation and transport equations for a multi-component chemically reactive turbulent system, taking into consideration nitrogen oxides formation. The Eddy-Dissipation-Concept model, which incorporates Arrhenius chemical kinetics in a turbulent flame, and the Discrete Phase Model describing the interfacial interaction are used in the investigation. The obtained results confirmed the possibility of organizing efficient combustion of distillate liquid fuel in a low-emission gas turbine combustion chamber operating on the principle of partial preliminary formation of a fuel-air mixture. Comparison of four methods of liquid fuel supply to the channels of radial-axial swirlers (centrifugal, axial, combined, and radial) revealed the advantages of the radial supply method, which are manifested in a decrease in the overall temperature field non-uniformity at the outlet and a decrease in nitrogen oxides emissions. The calculated concentrations of nitrogen oxides and carbon monoxide at the flame tube outlet for the radial method of fuel supply are 32 and 9.1 ppm, respectively. The results can be useful for further modification and improvement of the characteristics of dual-fuel gas turbine combustion chambers operating with both gaseous and liquid fuels.
    Źródło:
    Polish Maritime Research; 2020, 3; 89-99
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical studies of variable geometry : hot section of the miniature jet engine
    Autorzy:
    Chmielewski, M.
    Fulara, S.
    Gieras, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/243769.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    small gas turbine
    variable geometry
    combustor chamber
    turbine nozzle
    efficiency
    Opis:
    The aim of this article is to present the results of theoretical studies regarding the use of variable geometry hot section of a miniature gas turbine. The variable geometry combustor and variable area nozzle concepts for GTM-120 miniature jet engine are presented in particular. Recent trends of propulsion system size reduction, low-emission combustion and improved fuel efficiency have been considered. A system of variable geometry combustor and variable area nozzle has been proposed as solution. The basic zero-dimensional analytical models for variable geometry combustor and variable area nozzle are developed. Chemkin based model shows significant NOX/CO emissions reduction and combustor outlet enthalpy increases with the use of variable geometry combustor chamber. The analytical model of the variable area nozzle has been proposed. It shows turbine effectiveness increase across its operating range by raising the compressor working line. As a result, noticeable turbine stage efficiency increase has been obtained. Finally, physical implications and future work plans regarding variable geometry hot section of miniature gas turbines are discussed.
    Źródło:
    Journal of KONES; 2016, 23, 2; 69-80
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of a Catalyst for Flue Gas Purification from Carbon Monoxide of Multi-Chamber Furnaces for Baking Electrode Blanks
    Autorzy:
    Ivanenko, Olena
    Trypolskyi, Andrii
    Gomelya, Nikolai
    Karvatskii, Anton
    Vahin, Andrii
    Didenko, Olga
    Konovalova, Viktoria
    Strizhak, Peter
    Powiązania:
    https://bibliotekanauki.pl/articles/1839547.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    carbon monoxide
    flue gas
    purification
    catalyst
    oxidation
    conversion
    multi-chamber furnace
    Opis:
    The catalysts based on natural zeolite-clinoptilolite of Sokyrnytsia deposit modified with oxides of Mn4+, Fe2+, Fe3+, Cu2+, Cr3+ were synthesized. It was determined that 100% conversion of carbon monoxide was achieved at a temperature of 390°C when using the copper-manganese-oxide catalyst (30% CuO + 70% MnO2). It was shown that although the use of the manganese-oxide catalyst provided 92.8% of CO conversion degree, this catalyst had the most advantages for application compared to the other studied solids. The structural parameters of the manganese-oxide catalyst were determined using XRD, SEM, and nitrogen adsorption. The composition of the main elements of the catalyst samples was determined by micro-X-ray spectral analysis. It was shown that using the catalyst containers in chambers heated by flue gases in the fire channels of a multi-chamber furnace for baking of electrode blanks can be one of the constructive solutions to the problem of flue gas purification from carbon monoxide. The environmental safety of the copper-manganese-oxide catalyst application for the treatment of the flue gases of electrode production is justified by obtaining a catalyst from spent sorbents for purification of the manganese-containing natural water and its non-toxicity in the case of burial or storage in landfills.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 1; 174-187
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigations of the emission characteristics of a dual-fuel gas turbine combustion chamber operating simultaneously on liquid and gaseous fuels
    Autorzy:
    Serbin, Serhiy
    Diasamidze, Badri
    Gorbov, Viktor
    Kowalski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/1573591.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    gas turbine engine
    dual-fuel combustion
    combustion chamber
    liquid and gaseous fuels
    Opis:
    This study is dedicated to investigations of the working process in a dual-fuel low-emission combustion chamber for a floating vessel’s gas turbine. As the object of the research, a low-emission gas turbine combustion chamber with partial premixing of fuel and air inside the outer and inner radial-axial swirls was chosen. The method of the research is based on the numerical solution of the system of differential equations which represent the physical process of mass and energy conservation and transformations and species transport for a multi-component chemically reactive turbulent system, considering nitrogen oxides formation and a discrete ordinates model of radiation. The chemistry kinetics is presented by the 6-step mechanism of combustion. Seven fuel supply operating modes, varying from 100% gaseous fuel to 100% liquid fuel, have been analysed. This analysis has revealed the possibility of the application of computational fluid dynamics for problems of dual-fuel combustion chambers for the design of a floating vessel’s gas turbine. Moreover, the study has shown the possibility of working in different transitional gaseous and liquid fuel supply modes, as they satisfy modern ecological requirements. The dependencies of the averaged temperature, NO, and CO concentrations along the length of the low-emission gas turbine combustion chamber for different cases of fuel supply are presented. Depending on the different operating modes, the calculated emission of nitrogen oxides NO and carbon monoxide CO at the outlet cross-section of a flame tube are different, but, they lie in the ranges of 31‒50 and 23‒24 mg/nm3 on the peak of 100% liquid fuel supply mode. At operating modes where a gaseous fuel supply prevails, nitrogen oxide NO and carbon monoxide CO emissions lie in the ranges of 1.2‒4.0 and 0.04‒18 mg/nm3 respectively.
    Źródło:
    Polish Maritime Research; 2021, 2; 85-95
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of the characteristics of a low-emission gas turbine combustion chamber operating on a mixture of natural gas and hydrogen
    Autorzy:
    Serbin, Serhiy
    Burunsuz, Kateryna
    Chen, Daifen
    Kowalski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/32899814.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    gas turbine
    low-emission combustion chamber
    ecological parameters
    emission of toxic components
    Opis:
    This article is devoted to the investigation of the characteristics of a low-emission gas turbine combustion chamber, which can be used in Floating Production, Storage and Offloading (FPSO) vessels and operates on a mixture of natural gas and hydrogen. A new approach is proposed for modelling the processes of burning out a mixture of natural gas with hydrogen under preliminary mixing conditions in gaseous fuel with an oxidizer in the channels of radial-axial swirlers of flame tubes. The proposed kinetic hydrocarbon combustion scheme is used in three-dimensional calculations for a cannular combustion chamber of a 25 MW gas turbine engine for two combustion models: the Finite-Rate/Eddy-Dissipation and the Eddy Dissipation Concept. It was found that, for the investigated combustion chamber, the range of stable operations, without the formation of a flashback zone in the channels of radial-axial swirlers, is determined by the hydrogen content in the mixture, which is less than 25-30% (by volume). For the operating modes of the chamber without the formation of a flashback zone inside the swirler channels, the emissions of nitrogen oxide NO and carbon monoxide CO do not exceed the values corresponding to modern environmental requirements for emissions of toxic components by gas turbine engines.
    Źródło:
    Polish Maritime Research; 2022, 2; 64-76
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mathematical simulation of gas bubble moving in central region of the short vortex chamber
    Мatematicheskoe modelirovanie dvizhenija gazovogo puzyr'ka v central'nojj oblasti korotkojj vikhrevojj kamery
    Autorzy:
    Syomin, D.
    Rogovyi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/792750.pdf
    Data publikacji:
    2012
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    gas bubble
    dropping liquid
    transportation
    angular velocity
    vortex chamber
    mathematical simulation
    trajectory calculation
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 4
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical investigation of the internal flue gas recirculation system applied to methane powered gas microturbine combustor
    Autorzy:
    Fąfara, Jean-Marc
    Modliński, Norbert
    Powiązania:
    https://bibliotekanauki.pl/articles/2097605.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    gas microturbine
    exhaust gas recirculation
    combustion chamber
    CO emission
    NOx emission
    mikroturbina gazowa
    recyrkulacja spalin
    komora spalania
    emisja CO
    emisja NOx
    Opis:
    The gas microturbines gain significance in various industry sectors. One of their most crucial advantages is the capability of utilizing variety of fuels. At the same time, the emissions regulations become increasingly strict. This is why there is a need to look for a new technological solution to limit the emissions of selected substances, like carbon monoxide (CO) and nitrogen oxides (NOx). The internal recirculation of the flue gases is well known to limit the temperature peak and for the homogenization of the temperature field gradient in different combustion chambers. This paper presents a numerical investigation of a novel internal flue gas recirculation system applied to gas microturbine combustors. The ability to perform an internal exhaust gases recirculation by adding a combustor internal pipe system was verified numerically. This paper exposed the numerical investigation methods and obtained results. The study presents the concept and results performed on three cases of internal exhaust gases recirculation systems applied to a reference combustor. The work permitted to demonstrate numerically that it is possible to perform an autonomous exhaust gases recirculation inside gas micro-turbine combustor at a maximum global rate of 0.51%, and that the recirculation system has an impact on the combustion processes without specially modifying the combustor work parameters.
    Źródło:
    Combustion Engines; 2021, 60, 4; 21--29
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pressure analysis and controlin an industrial gas heating furnace as a way to reduce CO2 emission
    Autorzy:
    Wnęk, Mariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/27324369.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Techniki Górniczej KOMAG
    Tematy:
    burning of fuels
    combustion chamber
    gas burners
    gas fuel savings
    reduced emission of CO2
    paliwo
    ciekły gaz
    redukcja emisji CO2
    Opis:
    Emission of carbon dioxide, which may affect the greenhouse effect leading to global warming is acritical aspect of the industrial use of thermal devices. The article presents the results of testing thecombustion processes in theoperating conditions in an industrial heating device fired by gas burners. technical, energy and operational parameters of theselected chamber for thermal processof the selected fuel inputwere characterized and analysed. A solution related to pressure controlin thecombustion chamber, which should be used to reduce the level of CO2emissions, which will enable a positive environmental impact is presented. Pro-ecologicalcharacterof the presented solution isa very important practical effect. Especially nowadays, when there is a strong need to reduce the negative impact of production processes on environment, and all solutions leading to a reduction in CO2emission should also be perceived as very important for business.
    Źródło:
    Mining Machines; 2023, 41, 3; 212--219
    2719-3306
    Pojawia się w:
    Mining Machines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of the efficiency of a dual-fuel gas turbine combustion chamber with a plasma‒chemical element
    Autorzy:
    Serbin, Serhiy
    Diasamidze, Badri
    Dzida, Marek
    Chen, Daifen
    Powiązania:
    https://bibliotekanauki.pl/articles/32921246.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    gas turbine engine
    power plant
    dual-fuel combustion
    combustion chamber
    liquid fuel
    gaseous fuel
    plasma-assisted combustion
    Opis:
    The study is devoted to the possibility of increasing the efficiency of the working process in dual-fuel combustion chambers of gas turbine engines for FPSO vessels. For the first time, it is proposed to use the advantages of plasma‒chemical intensification of the combustion of hydrocarbon fuels in the dual-fuel combustion chambers, which can simultaneously operate on gaseous and liquid fuels. A design scheme of a combustion chamber with a plasma‒chemical element is proposed. A continuous type mathematical model of a combustion chamber with a plasma‒chemical element has been developed, which is based on the solution of a system of differential equations describing the processes of chemical reactions in a turbulent system, taking into consideration the initiating effect of the products of plasma‒chemical reactions on the processes of flame propagation. A modified six-stage kinetic scheme of hydrocarbon oxidation was used to simultaneously predict the combustion characteristics of the gaseous and liquid fuels, taking into account the decrease in the activation energy of carbon monoxide oxidation reactions when the products of the plasma‒chemical element are added. The results reveal that the addition of plasma‒chemical products significantly reduces CO emissions in the outlet section of the flame tube (from 25‒28 ppm to 3.9‒4.6 ppm), while the emission of nitrogen oxides remains practically unchanged for the studied combustion chamber. Further research directions are proposed to enhance the working process efficiency of a dual-fuel combustion chamber for gas turbine engines as part of the power plant of FSPO vessels.
    Źródło:
    Polish Maritime Research; 2023, 2; 68-75
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurements of selected greenhouse gases exhalation by using the closed-chamber technique and calculation of hour expiration with regard to CO₂ emissions
    Pomiar eksahalacji wybranych gazów cieplarnianych za pomocą komory zamkniętej oraz obliczanie wielkości emisji godzinowej na przykładzie wydzielania CO₂
    Autorzy:
    Tołoczko, Wojciech
    Niewiadomski, Arkadiusz
    Powiązania:
    https://bibliotekanauki.pl/articles/944941.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    closed-chamber method
    soil respiration
    CO₂ expiration
    gas analyzer
    metoda komorowa zamknięta
    respiracja gleb
    wydzielanie co2
    analizator gazów.
    Opis:
    The article presents the use of a closed-chamber method used for measuring the size of exhalation gases from the soil. The paper presents the assumptions of the method, the measuring kit and information regarding the conversion of the gas concentration in the measuring chamber into the amount of gases emitted from the soil. The authors presented a way of converting concentration of emission gases (for example CO₂) in [ppm] units into the exhalation values [mg (CO₂) x m⁻² x h⁻¹], which are more convenient for comparing the results of environmental tests. The work also includes guidelines for conducting the field measurements and allows one to estimate the size of the exchange of gases between soil and atmosphere.
    Artykuł prezentuje zastosowanie metody komorowej, przy wykorzystaniu statycznej komory zamkniętej, służącej do pomiarów wielkości ekshalacji gazów z gleby. W pracy przedstawiono założenia metody, skład zestawu pomiarowego oraz informacje dotyczące przeliczania wartości stężenia gazów w komorze pomiarowej na ilość gazów. Autorzy zaprezentowali sposób przeliczania stężenia gazów (na przykładzie CO₂) w jednostkach [ppm] na wartości ekshalacji [mg (CO₂) x m⁻² x h⁻¹], które są wygodniejsze do porównań wyników badań środowiskowych. Praca zawiera ponadto wskazówki dla prowadzenia pomiarów terenowych i pozwala na szacowanie wielkości wymiany gazów pomiędzy glebą i atmosferą.
    Źródło:
    Acta Universitatis Lodziensis. Folia Geographica Physica; 2015, 14
    1427-9711
    2353-6063
    Pojawia się w:
    Acta Universitatis Lodziensis. Folia Geographica Physica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Development of Mathematical Model of Gas-Turbine Unit Combustion for Chamber Functioning
    Opracowanie matematycznego modelu spalania w komorach turbin gazowych
    Autorzy:
    Mandryk, O. M.
    Mykhayliuk, Y. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/385498.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    komora spalania
    model matematyczny
    silnik turbiny gazowej
    charakterystyka ekologiczna
    płyn roboczy
    combustion chamber
    mathematical model
    gas-turbine engine
    ecological characteristics
    actuating medium
    Opis:
    W artykule przedstawiono podstawowe zagadnienia zwiększenia bezpieczeństwa ekologicznego nowoczesnych stacjonarnych silników turbin gazowych (UTG). Został utworzony matematyczny model komory spalania uwzględniający główne parametry eksploatacji urządzenia. W modelu wykorzystania turbiny gazowej w różnych trybach technologicznych uwzględniono temperaturę powietrza na otworze wlotowym sprężarki osiowej, temperaturę płynu roboczego wlotowych łopatek kierowniczych turbiny i temperaturę środowiska.
    This article presents the basic issues of ecological safety improvement of present-day steady-state gas-turbine units. It has been developed the mathematical model diagnostics of combustion chamber considering the basic parameters of gas-turbine unit (GTU) operation under diff erent technological modes including the intake air temperature of the axial-flow compressor, the intake temperature of the actuating medium of the directing set of the high pressure turbine as well as the temperature of the environment.
    Źródło:
    Geomatics and Environmental Engineering; 2016, 10, 1; 69-78
    1898-1135
    Pojawia się w:
    Geomatics and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of intake canal geometry on kinematics of load in combustion chamber
    Wplyw geometrii kanalu dolotowego na kinematyke ruchu ladunku w przestrzeni roboczej silnika tlokowego
    Autorzy:
    Piatkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/793234.pdf
    Data publikacji:
    2011
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    supply system
    engine
    modern engine
    combustion chamber
    intake canal geometry
    spark ignition
    fume emission
    toxic gas
    hydrocarbon
    carbon monoxide
    nitric oxide
    sulphur oxide
    fuel consumption
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

      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