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Wyszukujesz frazę "gas-steam power plant" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Parametric analysis of the efficiency of the combined gas-steam turbine unit of a hybrid cycle for the FPSO vessel
Autorzy:
Serbin, Serhiy
Washchilenko, Nikolay
Dzida, Marek
Kowalski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/2033277.pdf
Data publikacji:
2021
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
combined-cycle
gas turbine
steam turbine
power plant
Opis:
A thermal diagram of the combined gas‒steam turbine unit of a hybrid cycle, which is an energy complex consisting of a base gas turbine engine with a steam turbine heat recovery circuit and a steam-injected gas turbine operating with overexpansion, is proposed. A mathematical model of a power plant has been developed, taking into consideration the features of thermodynamic processes of simple, binary, and steam-injected gas‒steam cycles. Thermodynamic investigations and optimization of the parameters of a combined installation of a hybrid cycle for the generation of electrical energy have been carried out. Three-dimensional calculations of the combustion chamber of a steam-injected gas turbine were carried out, which confirmed the low emissions of the main toxic components.
Źródło:
Polish Maritime Research; 2021, 4; 122-132
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gas-steam cycle as a source of energy for carbon dioxide capture from flue gases of a large coal power plant
Układ gazowo-parowy jako źródło energii dla układu wychwytu CO2 ze spalin bloku węgłowego dużej mocy
Autorzy:
Wójcik, K.
Lepszy, S.
Chmielniak, T.
Powiązania:
https://bibliotekanauki.pl/articles/172837.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
układ gazowo-parowy
CO2
blok węglowy
gas-steam cycle
coal power plant
Opis:
Separation of carbon dioxide from flue gas carried by the chemical absorption is associated with a high energy demand for desorption process and increased demand for electricity. Satisfying these needs through the use of energy generated in the same power plant, where CO2 is emitted, has a significant influence on the parameters of the plant (reduction of power and decrease of the electricity generation efficiency). It examines the use of additional power source, serving on the need to install CO2 capture. The paper presents the technical and economic parameters of the combined system, formed from a power plant fueled by coal with the CO2 capture system that is associated with gas-steam cycle, producing energy for CO2 separation plant.
Separacja CO2 ze spalin przeprowadzana metodą absorpcji chemicznej wiąże się z dużym zapotrzebowaniem na energię cieplną (na cele desorpcji) oraz zwiększonym zapotrzebowaniem na energię elektryczną. Zaspokojenie tych potrzeb poprzez dostarczenie energii wytworzonej w bloku, dla którego przeprowadza się wydzielanie CO2 ze spalin, ma znaczny wpływ na parametry bloku (zmniejszenie mocy wytworzonej oraz spadek sprawności wytwarzania energii elektrycznej). Przeanalizowano wykorzystanie dodatkowego źródła energii, pracującego na potrzeby instalacji wychwytu CO2. W pracy przedstawiono parametry techniczne i ekonomiczne dla układu kombinowanego, powstałego z bloku węglowego z wychwytem CO2, skojarzonego z układem gazowo-parowym i wytwarzającego energię do instalacji separacji CO2.
Źródło:
Archiwum Energetyki; 2011, 41, 3-4; 15-28
0066-684X
Pojawia się w:
Archiwum Energetyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of thermodynamic cycles of selected nuclear ship power plants with hightemperature helium- cooled nuclear reactor
Autorzy:
Szewczuk-Krypa, N.
Grzymkowska, A.
Głuch, J.
Powiązania:
https://bibliotekanauki.pl/articles/260189.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
nuclear ship power plant
nuclear reactor
HTGR
gas turbine
steam turbine
combined cycle
Opis:
This paper presents a comparative analysis of thermodynamic cycles of two ship power plant systems with a hightemperature helium- cooled nuclear reactor. The first of them is a gas system with recuperator , in which classical gas chamber is substituted for a HTGR reactor (High Temperature Gas-cooled Reactor) . The second of the considered cycles is a combined gas-steam system where working medium flux from gas turbine outlet is directed into waste heat boiler and its heat is utilized for production of superheated steam to drive steam turbine. Preliminary calculations of the combine cycles showed that it is necessary to expand the system by adding to its steam part an inter-stage overheat for secondary steam, owing to that a required degree of steam dryness at outlet from the turbine can be reached, ensuring its correct operational conditions. The analyzed power systems were compared to each other with regard to efficiency of their thermodynamic cycles. Also, efficiency of particular cycles were subjected to optimization in respect to such parameters as : working gas temperature at outlet from reactor in gas system as well as steam pressure at outlet from waste heat boiler and partition pressure in steam part of combined system. Advantages of nuclear power plants compared with the classical power systems dominating currently in sea transport were also discussed.
Źródło:
Polish Maritime Research; 2018, S 1; 218-224
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A mathematical model of two-stage Solid Oxide Fuel Cell, SOFC, stacks for dynamic simulation of Combined Heat and Power system fed by natural gas
Autorzy:
Palus, Mateusz
Pianko-Oprych, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/1849273.pdf
Data publikacji:
2021
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
dynamic model
natural gas
Solid Oxide Fuel Cell stacks
Combined Heat and Power
CHP
system
Balance of Plant
BoP
modelling
Catalytic Partial Oxidation
CPOx
reformer
steam reformer
Opis:
Zero-dimensional two-stage SOFC stacks dynamic model was developed to investigate the effect of operating parameters on stacks performance. The model resolves spatially thermal and thermo-electrochemical behaviour for electrochemical reactions, Catalytic Partial Oxidation and Steam Reforming processes. Design variables and thermo-electrochemical properties were obtained from in-house-fabricated SOFCs carried out by project partners. The completed SOFCs based Combined Heat and Power, CHP, system model was validated by data18 and numerical results obtained at steady-state mode showing its high-fidelity. A parametric study with respect to key operating parameters including changes in fuel utilization, lambda number and current density values was conducted. The global CHP system dynamic response, in term of the current/voltage delivered by two-stage SOFC stacks, under a fi xed fuel utilization, has been determined resulting in greater variations in the voltage of a single cell in the first stack in comparison to the corresponding values in the second stack.
Źródło:
Polish Journal of Chemical Technology; 2021, 23, 2; 1-11
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A mathematical model of two-stage Solid Oxide Fuel Cell, SOFC, stacks for dynamic simulation of Combined Heat and Power system fed by natural gas
Autorzy:
Palus, Mateusz
Pianko-Oprych, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/1849268.pdf
Data publikacji:
2021
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
dynamic model
natural gas
Solid Oxide Fuel Cell stacks
Combined Heat and Power
CHP
system
Balance of Plant
BoP
modelling
Catalytic Partial Oxidation
CPOx
reformer
steam reformer
Opis:
Zero-dimensional two-stage SOFC stacks dynamic model was developed to investigate the effect of operating parameters on stacks performance. The model resolves spatially thermal and thermo-electrochemical behaviour for electrochemical reactions, Catalytic Partial Oxidation and Steam Reforming processes. Design variables and thermo-electrochemical properties were obtained from in-house-fabricated SOFCs carried out by project partners. The completed SOFCs based Combined Heat and Power, CHP, system model was validated by data18 and numerical results obtained at steady-state mode showing its high-fidelity. A parametric study with respect to key operating parameters including changes in fuel utilization, lambda number and current density values was conducted. The global CHP system dynamic response, in term of the current/voltage delivered by two-stage SOFC stacks, under a fi xed fuel utilization, has been determined resulting in greater variations in the voltage of a single cell in the first stack in comparison to the corresponding values in the second stack.
Źródło:
Polish Journal of Chemical Technology; 2021, 23, 2; 1-11
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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