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    Tytuł:
    Supercritical power plant 600 MW with cryogenic oxygen plant and CCS installation
    Autorzy:
    Kotowicz, J.
    Dryjańska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/240262.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    CFB oxy boiler
    oxy-combustion system
    supercritical oxy power plant
    electricity generation efficiency
    cryogenic air separation
    kocioł oxy
    system spalania
    elektrownia
    sprawność wytwarzania energii elektrycznej
    kriogeniczny rozdział powietrza
    Opis:
    This article describes a thermodynamic analysis of an oxy type power plant. The analyzed power plant consists of: 1) steam turbine for supercritical steam parameters of 600°C/29 MPa with a capacity of 600 MW; 2) circulating fluidized bed boiler, in which brown coal with high moisture content (42.5%) is burned in the atmosphere enriched in oxygen; 3) air separation unit (ASU); 4) CO2 capture installation, where flue gases obtained in the combustion process are compressed to the pressure of 150 MPa. The circulated fluidized bed (CFB) boiler is integrated with a fuel dryer and a cryogenic air separation unit. Waste nitrogen from ASU is heated in the boiler, and then is used as a coal drying medium. In this study, the thermal efficiency of the boiler, steam cycle thermal efficiency and power demand were determined. These quantities made possible to determine the net efficiency of the test power plant.
    Źródło:
    Archives of Thermodynamics; 2013, 34, 3; 123-137
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermodynamic analysis of an innovative steam turbine power plant with oxy-methane combustors
    Autorzy:
    Kindra, Vladimir Olegovich
    Osipov, Sergey Konstantinovich
    Zlyvko, Olga Vladimirovna
    Shcherbatov, Igor Alexandrovich
    Sokolov, Vladimir Petrovich
    Powiązania:
    https://bibliotekanauki.pl/articles/1955067.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Combined cycle power plant
    carbon capture
    storage system
    precombustion capture
    post-combustion capture
    oxy-fuel combustion
    Opis:
    The Rankine cycle steam turbine power plants make a base for world electricity production. The efficiency of modern steam turbine units is not higher than 43–45%, which is remarkably lower compared to the combined cycle power plants. However, an increase in steam turbine power plant efficiency could be achieved by the rise of initial cycle parameters up to ultra-supercritical values: 700–780◦C, 30–35 MPa. A prospective steam superheating technology is the oxy-fuel combustion heating in a sidemounted combustor located in the steam pipelines. This paper reviews thermal schemes of steam turbine power plants with one or two side-mounted steam superheaters. An influence of the initial steam parameters on the facility thermal efficiency was identified and primary and secondary superheater parameters were optimized. It was found that the working fluid superheating in the side-mounted oxy-methane combustors leads to an increase of thermal efficiency higher than that with the traditional boiler superheating in the initial temperature ranges of 700–780◦C and 660–780◦C by 0.6% and 1.4%, respectively.
    Źródło:
    Archives of Thermodynamics; 2021, 42, 4; 123-140
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermodynamic analysis of cycle arrangements of the coal-fired thermal power plants with carbon capture
    Autorzy:
    Kindra, Vladimir Olegovich
    Milukov, Igor Alexandrovich
    Shevchenko, Igor Vladimirovich
    Shabalova, Sofia Igorevna
    Kovalev, Dmitriy Sergeevich
    Powiązania:
    https://bibliotekanauki.pl/articles/1955057.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    combined cycle power plant
    carbon capture
    storage system
    precombustion capture
    post-combustion capture
    oxy-fuel combustion
    Opis:
    The electricity production by combustion of organic fuels, especially coal, increases the atmospheric CO2 content, which contributes to global warming. The greenhouse gas emissions by the power production industry may be reduced by the application of CO2 capture and storage systems, but it remarkably decreases the thermal power plant (TPP) efficiency because of the considerable increase of the auxiliary electricity requirements. This paper describes the thermodynamic analysis of a combined cycle TPP with coal gasification and preliminary carbon dioxide capture from the syngas. Utilization of the heat produced in the fuel preparation increases the TPP net efficiency from 42.3% to 47.2%. Moreover, the analysis included the combined cycle power plant with coal gasification and the CO2 capture from the heat recovery steam generator exhaust gas, and the oxy-fuel combustion power cycle with coal gasification. The coal-fired combined cycle power plant efficiency with the preliminary CO2 capture from syngas is 0.6% higher than that of the CO2 capture after combustion and 9.9% higher than that with the oxy-fuel combustion and further CO2 capture. The specific CO2 emissions are equal to 103 g/kWh for the case of CO2 capture from syngas, 90 g/kWh for the case of CO2 capture from the exhaust gas and 9 g/kWh for the case of oxy-fuel combustion.
    Źródło:
    Archives of Thermodynamics; 2021, 42, 4; 103-121
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficiency of Supercritical Coal Power Stations with Integrated CO2 Capture and Compression Systems Based on Oxy-combustion Technology
    Efektywność nadkrytycznych elektrowni węglowych zintegrowanych z instalacjami wychwytu i sprężania CO2 w technologii oxy-combustion
    Autorzy:
    Kotowicz, J.
    Brzęczek, M.
    Job, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/397478.pdf
    Data publikacji:
    2016
    Wydawca:
    ENERGA
    Tematy:
    supercritical coal power stations
    oxy-combustion technology
    CO2
    capture system
    nadkrytyczne elektrownie węglowe
    technologia oxy-spalania
    instalacja wychwytu CO2
    Opis:
    This paper presents supercritical coal-fired power stations integrated withCO2 capture and compression systems based on oxy-combustion. The efficiency and key performance indicators of analysed units with different oxygen generation methods have been compared. The following methods are presented: cryogenic, cryogenic-membrane based on polymer membranes, and membrane methods with three-end and four-end HTM membranes. Loss of efficiency in reference to a plant operating in classic arrangement (without CO2 capture) is given for all analysed systems. The main thermodynamic parameters of the considered power units were presented. The paper is a summary of results of the strategic programme ”Development of oxygen combustion technology for pulverised- and fluidised-bed boilers with integrated CO2 capture” carried out by the authors.
    W artykule przedstawiono nadkrytyczne elektrownie węglowe zintegrowane z instalacjami wychwytu i sprężania CO2 w technologii oxy-spalania. Porównano efektywność oraz główne parametry pracy analizowanych bloków dla różnych metod produkcji tlenu. Przedstawiono metody: kriogeniczną, kriogeniczno-membranową wykorzystującą membrany polimerowe i metody membranowe wykorzystujące membrany ceramiczne HTM typu three-end oraz four-end. Pokazano utratę sprawności wszystkich analizowanych układów względem elektrowni pracującej w trybie klasycznym (bez instalacji wychwytu CO2). Przedstawiono główne parametry termodynamiczne rozpatrywanych bloków. Praca jest syntezą rezultatów w realizowanym przez autorów projekcie strategicznym „Opracowanie technologii spalania tlenowego dla kotłów pyłowych i fluidalnych zintegrowanych z wychwytem CO2”.
    Źródło:
    Acta Energetica; 2016, 1; 69-76
    2300-3022
    Pojawia się w:
    Acta Energetica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    System approach to the analysis of an integrated oxy-fuel combustion power plant
    Autorzy:
    Ziębik, A.
    Gładysz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/240507.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    system approach
    input-output analysis
    oxy-fuel combustion
    cumulative energy
    exergy consumption
    system exergy losses
    thermoecological cost
    zarządzanie jakością
    analiza wejścia-wyjścia
    spalanie w tlenie
    energia skumulowana
    zużycie egzergii
    straty egzergii
    koszt termoekologiczny
    Opis:
    Oxy-fuel combustion (OFC) belongs to one of the three commonly known clean coal technologies for power generation sector and other industry sectors responsible for CO2 emissions (e.g., steel or cement production). The OFC capture technology is based on using high-purity oxygen in the combustion process instead of atmospheric air. Therefore flue gases have a high concentration of CO2 - Due to the limited adiabatic temperature of combustion some part of CO2 must be recycled to the boiler in order to maintain a proper flame temperature. An integrated oxy-fuel combustion power plant constitutes a system consisting of the following technological modules: boiler, steam cycle, air separation unit, cooling water and water treatment system, flue gas quality control system and CO2 processing unit. Due to the interconnections between technological modules, energy, exergy and ecological analyses require a system approach. The paper present the system approach based on the 'input-output' method to the analysis of the: direct energy and material consumption, cumulative energy and exergy consumption, system (local and cumulative) exergy losses, and thermoecological cost. Other measures like cumulative degree of perfection or index of sustainable development are also proposed. The paper presents a complex example of the system analysis (from direct energy consumption to thermoecological cost) of an advanced integrated OFC power plant.
    Źródło:
    Archives of Thermodynamics; 2014, 35, 3; 39-57
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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