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Wyszukujesz frazę "Lampart, P." wg kryterium: Autor

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Selected technical problems of cogeneration of electric energy and heat
    Autorzy:
    Lampart, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/175508.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cogeneration of electric energy and heat
    extraction-condensing turbine
    adaptive control
    distributed cogeneration
    organic Rankine cycle
    recovery heat
    Opis:
    The paper is focused on selected technical problems of cogeneration of heat and electric power (combined heat and power – CHP) both in a large and small scale. First, largescale cogeneration systems applied in large power industry are discussed and results of adaptive control of extraction condensing turbines are presented. Then, advantages of distributed cogeneration are pointed out and small-scale cogeneration systems aimed for modernisation of a fossil-fuel district heating plant are investigated. At the end of the paper, organic Rankine cycle (ORC) heat and power units are described for biomassfuelled cogeneration and topping of main generation units to use the recovery heat.
    Źródło:
    Transactions of the Institute of Fluid-Flow Machinery; 2015, 127; 137-152
    0079-3205
    Pojawia się w:
    Transactions of the Institute of Fluid-Flow Machinery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Adjustable (rotated) stator blade aerodynamics in adaptive control of extraction/condensing turbines
    Autorzy:
    Lampart, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/175580.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    LP turbine
    turbine stage group
    adaptive control
    Opis:
    Cogeneration of electric energy and heat as well as seasonal changes of the condenser pressure in low-pressure extraction/condensing turbines require adaptive control to adapt the geometry of the blading system to the changing flow conditions. In this paper adaptive control is achieved by means of restaggering (rotating) adjustable stator blades. An increase of turbine efficiency and power coming from adaptive control is numerically estimated for a group of two exit stages of an extraction/condensing turbine of power 60 MW. The calculations are made with the help of a computer code FlowER – a 3D solver of turbomachinery flows based on Reynolds-averaged Navier-Stokes equations for perfect gas.
    Źródło:
    Transactions of the Institute of Fluid-Flow Machinery; 2018, 141; 41-52
    0079-3205
    Pojawia się w:
    Transactions of the Institute of Fluid-Flow Machinery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biomass drying: Experimental and numerical investigations
    Autorzy:
    Żabski, J.
    Lampart, P.
    Gumkowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/240060.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wood chips drying
    drying simulation
    drying front
    packed bed
    zrębki drewniane
    symulacja
    suszenie
    złoże stałe
    Opis:
    Results of experimental and numerical investigations of wood chips drying are described in the paper. Experiments are carried out on two test facilities: a small laboratory rig and a larger pre-prototype dryer. Both facilities are thorough-circulation convective air dryers. The first one is a batch dryer, whereas the second one is a continuous dryer with wood chips flowing down by gravity from a charging hopper to a gutter with the aid of screw-conveyor. The latter is considered a half scale model (preprototype) for professional drying installations. A low feeding rate of wood chips into the pre-prototype dryer makes the process quasi-stationary and the difference between it and a batch drying is negligible. So, most experiments at this facility were carried out as batch dryers with non-agitated packed beds. The investigations exhibit the same linear correlation between the mass of evaporated water from the packed bed and the drying air velocity for both facilities. Numerical analysis of the drying process is conducted using the Ansys Fluent software enriched in drying capabilities by means of self-written procedures – user defined functions. Simulations confirmed a phenomenon of a drying front observed in the small laboratory rig. A thin layer of wood chips comprises the whole heat exchange and moisture evaporation phenomenon. The drying front travels downstream in the course of the process separating the already dried layer and still wet layer.
    Źródło:
    Archives of Thermodynamics; 2018, 39, 1; 39-73
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The analysis of energy and emission indicators of a piston engine supplied by a mixture of biogas
    Autorzy:
    Stępniak, D.
    Surwiło, J.
    Lampart, P.
    Szymaniak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/175362.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    piston combustion engine
    low caloric fuels
    biogas
    CO
    CO₂
    NOx emission
    Opis:
    The paper presents the methodology and results of research focused on experimental investigation of combustion of biogas fuels in a combustion piston engine. The study highlights the variability of exhaust gases parameters produced by the engine running in an idle mode and in a generation mode. The experimental analysis includes research about variability of temperature in the cylinders, depending on the composition of fuel used to supply the engine. The qualitative and quantitative analysis of exhaust gases extends on biogas substitutes with different proportions of CH₄ and CO₂. Characteristics of a piston combustion engine were created, including CO, CO₂, NOx emission indicators, for a range of engine load and fuel composition.
    Źródło:
    Transactions of the Institute of Fluid-Flow Machinery; 2016, 134; 109-120
    0079-3205
    Pojawia się w:
    Transactions of the Institute of Fluid-Flow Machinery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and performance study of a small-scale waste heat recovery turbine
    Autorzy:
    Rusanov, R.
    Jędrzejewski, Ł.
    Klonowicz, P.
    Żywica, G.
    Lampart, P.
    Rusanov, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/175197.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cogeneration unit
    low-boiling working media
    numerical method
    turbine
    radialaxial stage
    Opis:
    The paper presents the design process of a radial-axial turbine working with SES36 working fluid. First, the mean-line design process is performed and then the geometry is developed. In the next stage the numerical verification is performed taking into account the real properties of the working fluid. The properties are implemented via a look-up table and by a modified Benedict-Webb-Rubin equation of state. The presented turbine is characterized by a very small stator outflow angle which is about 4.5◦ but despite this small value, the efficiency of the machine is relatively high and equal to about 88%. The influence of internal leakages has also been investigated.
    Źródło:
    Transactions of the Institute of Fluid-Flow Machinery; 2016, 133; 145-162
    0079-3205
    Pojawia się w:
    Transactions of the Institute of Fluid-Flow Machinery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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