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    Wyświetlanie 1-3 z 3
    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:
    Energy and economic analysis of the carbon dioxide capture installation with the use of monoethanolamine and ammonia
    Autorzy:
    Bochon, K.
    Chmielniak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/240312.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    CO2 separation
    carbon capture
    MEA
    chilled ammonia
    economic analysis
    separacja CO2
    wychwytywanie dwutlenku węgla
    schłodzony amoniak
    analiza ekonomiczna
    Opis:
    In the study an accurate energy and economic analysis of the carbon capture installation was carried out. Chemical absorption with the use of monoethanolamine (MEA) and ammonia was adopted as the technology of carbon dioxide (CO2) capture from flue gases. The energy analysis was performed using a commercial software package to analyze the chemical processes. In the case of MEA, the demand for regeneration heat was about 3.5 MJ/kg of CO2, whereas for ammonia it totalled 2 MJ/kg CO2. The economic analysis was based on the net present value (NPV) method. The limit price for CO2 emissions allowances at which the investment project becomes profitable (NPV = 0) was more than 160 PLN/Mg for MEA and less than 150 PLN/Mg for ammonia. A sensitivity analysis was also carried out to determine the limit price of CO2 emissions allowances depending on electricity generation costs at different values of investment expenditures.
    Źródło:
    Archives of Thermodynamics; 2015, 36, 1; 93-110
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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