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Wyszukujesz frazę "low pressure steam turbine" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    3D multistage computations of turbine flows using different state equations
    Autorzy:
    Rusanov, A. V.
    Yershov, S.
    Lampart, P.
    Świrdyczuk, J.
    Gardzielewicz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1931597.pdf
    Data publikacji:
    2002
    Wydawca:
    Politechnika Gdańska
    Tematy:
    3D RANS model
    state equation
    low pressure steam turbine
    Opis:
    The paper describes the implementation of a modified state equation for perfect gas and Tammann equation into a 3D RANS solver FlowER. In the modification the specific heats are assumed as linear functions of temperature. A 5-stage LP steam turbine stage is calculated, and the comparison of results for constant and variable specific heats is illustrated. The modification significantly improves the correctness of determination of thermodynamic parameters in the entire flow region, especially in the exit stage.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2002, 6, 4; 591-600
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of innovative solutions to improve the efficiency of the LPC flow part of the 220 MW NPP steam turbine
    Autorzy:
    Rusanov, Andrii
    Subotin, Viktor
    Shvetsov, Viktor
    Rusanov, Roman
    Palkov, Serhii
    Palkov, Ihor
    Chugay, Marina
    Powiązania:
    https://bibliotekanauki.pl/articles/2091359.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    steam turbine
    low-pressure cylinder
    flow part
    meridional contours
    spatial flow
    computational investigation
    Opis:
    The results of the gas-dynamic calculation of the low-pressure cylinder flow part of the K-220-44 type steam turbine intended for operation at nuclear power plants are presented. The ways of the flow part improvement were determined. Some of those ways include the use of innovative approaches that were not previously used in steam turbines. The design of the new flow part was carried out on the basis of a comprehensive methodology implemented in the IPMFlow software package. The methodology includes gas-dynamic calculations of various levels of complexity, as well as methods for analytical construction of the spatial shape of the blade tracts based on a limited number of parameterized values. The real thermodynamic properties of water and steam were taken into account in 3D calculations of turbulent flows. At the final step, end-to-end 3D calculations of the lowpressure cylinder that consists of 5 stages were performed. The technology of parallel computing was applied in those calculations. It is shown that due to the application of innovative solutions, a significant increase in efficiency can be achieved in the developed low-pressure cylinder.
    Źródło:
    Archives of Thermodynamics; 2022, 43, 1; 63--87
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling 3D steam turbine flow using thermodynamic properties of steam IAPWS-95
    Autorzy:
    Rusanow, A. V.
    Lampart, P.
    Pashchenko, N. V.
    Rusanov, R. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/258730.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    three-dimensional viscous flow
    steam turbine
    low-pressure cylinder
    sets of equations of state for water and steam IAPWS-95
    approximations of equations
    Opis:
    An approach to approximate equations of state for water and steam (IAPWS-95) for the calculation of three-dimensional flows of steam in turbomachinery in a range of operation of the present and future steam turbines is described. Test calculations of three-dimensional viscous flow in an LP steam turbine using various equations of state (perfect gas, Van der Waals equation, equation of state for water and steam IAPWS-95) are made. The comparison of numerical results with experimental data is also presented.
    Źródło:
    Polish Maritime Research; 2016, 1; 61-67
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Approach to Impact Assessment of the Rated Power Uprate of NPP Unit on the Service Life of the Turbine Critical Elements
    Autorzy:
    Chernousenko, Olga
    Nikulenkova, Tetyana
    Peshko, Vitaliy
    Nikulenkov, Anatolii
    Powiązania:
    https://bibliotekanauki.pl/articles/1811575.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    nuclear power plant
    reliability
    turbine
    steam flow
    computational fluid dynamics
    high pressure rotor
    service life
    long-term strength
    low cycle fatigue
    Opis:
    Nuclear power plants play an important role in power systems of many countries. Ability to reasonable increase installed capacity of nuclear power units allow to reduce the cost for building of new power plants. When increasing NPP capacity to 104% there is a need to estimate the residual life of plant’s typical elements and continue their operation. The mathematical model of estimation of service life indicators of steam turbine K-1000-60/3000 is developed. The effect of increasing the capacity of a nuclear reactor on the heat transfer coefficients of a steam in the nozzle segments of high-pressure cylinder was established by using CFD modeling. The thermal and stress-strain state of the high-pressure rotor for the most typical operating modes are calculated. Using the correlation dependences of low-cycle fatigue, the rate of accumulation of cyclic damage of the base metal is established. The resistance of the metal to the exhaustion of long-term strength is also determined. On the example of the high pressure rotor of the 3rd power unit of Rivne NPP the service life indicators are calculated. The validity of increasing the installed capacity of the power unit was also confirmed.
    Źródło:
    Rocznik Ochrona Środowiska; 2020, Tom 22, cz. 1; 105-116
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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