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    Wyświetlanie 1-4 z 4
    Tytuł:
    A robust 18-pulse diode rectifier with coupled reactors
    Autorzy:
    Mysiak, P.
    Strzelecki, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/200065.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    series active power filters
    multi-pulse rectifiers
    coupled reactors
    power conditioning
    Opis:
    The article presents the principle of operation and selected results of simulation and laboratory tests of the 18-pulse rectifier system with coupled reactors and small series active power filter. The presented system makes it possible to reduce, especially in distribution supply networks, undesired higher current harmonics. The 18-pulse nature of operation of the rectifier is reached using a set of coupled three-phase network reactors (CDT and CTR). The simultaneous use of the coupled reactors and the small active power filter provides opportunities for reduction of the supply current distortion, especially in case of voltage harmonic distortion and voltage unbalance.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 4; 541-550
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study on the influence of output inductance on DBD plasma uniformit
    Autorzy:
    Hołub, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/141400.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    non-thermal plasma
    power electronic supply
    plasma uniformity
    dielectric barrier discharge reactors
    Opis:
    The presented work gives an overview on simulation and experimental results of the power supply parameters’ influence on DBD discharge uniformity. The proposed study is about the use of quasi-pulsed, power electronic power supply and a saturable inductor in series with the discharge cell [1]. The simulation results are presented with a parallel DBD reactor model with linear critical voltage distribution. A more uniform current waveform is observed, however, due to small reactor capacitances no streamer formation could be verified in calculations. An experimental test stand was prepared with a double dielectric barrier discharge arrangement. The experimental results are presented with regard to the electrical oscilloscope waveforms and ICCD camera imaging. A more homogenous plasma was observed in the case of saturable inductor with saturation current set at the point of discharge formation. Two possible mechanisms are connected with this phenomenon – inductive element current support during discharge and/or current rise-time limitation [1].
    Źródło:
    Archives of Electrical Engineering; 2014, 63, 2; 263-272
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Production and formation modelling of CaCO3 in multiphase reactions – A review
    Autorzy:
    Gierycz, Paweł
    Poświata, Artur
    Powiązania:
    https://bibliotekanauki.pl/articles/2034048.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    CaCO3 production
    CaCO3 formation modelling
    continues reactors
    bubble column reactor
    thin film reactor
    produkcja CaCO3
    modelowanie powstawania CaCO3
    reaktor cienkowarstwowy
    Opis:
    The paper presents different approaches to the proper and accurate production and modelling (multi- phase reaction) of CaCO3 formation in the most popular, different types of reactors, i.e. continuous reactor (STR – stirred tank reactors, MSMPR – mixed suspension, mixed product removal; tube reactor), a bubble column reactor and a thin film reactor. Many different methods of calcium carbonate production and their effect on the various characteristics of the product have been presented and discussed. One of the most important, from the point of view of practical applications, is the morphology and size of the produced particles as well as their agglomerates and size distribution. The size of the obtained CaCO3 particles and their agglomerates can vary from nanometers to micrometers. It depends on many factors but the most important are the conditions calcium carbonate precipitation and then stored. The experimental research was strongly aided by theoretical considerations on the correct description of the process of calcium carbonate precipitation. More than once, the correct modelling of a specific process contributed to the explanation of the phenomena observed during the experiment (i.e. formation of polyforms, intermediate products, etc.). Moreover, different methods and approaches to the accurate description of crystallization processes as well as main CFD problems has been widely reviewed. It can be used as a basic material to formulation and implementation of new, accurate models describing not only multiphase crystallization processes but also any processes taking place in different chemical reactors.
    Źródło:
    Chemical and Process Engineering; 2021, 42, 1; 15-34
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sorption-enhanced steam methane reforming (SE-SMR) – a review: reactor types, catalyst and sorbent characterization, process modeling
    Autorzy:
    Cherbański, R.
    Molga, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/185562.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    reactive adsorption
    adsorptive reactors
    reactor modeling
    sorption-enhanced reaction
    process SERP
    steam methane reforming (SMR)
    reaktywna adsorpcja
    modelowanie reaktora
    reakcja zwiększona przez sorpcję
    proces (SERP)
    reformowanie metanu parowego (SMR)
    Opis:
    In this review, research carried out on sorption-enhanced steam methane reforming (SESMR) process is presented and discussed. The reactor types employed to carry out this process, fixed packed bed and fluidized bed reactors, are characterized as well as their main operating conditions indicated. Also the concepts developed and investigations performed by the main research groups involved in the subject are summarized. Next the catalysts and CO2 sorbents developed to carry out SE-SMR are characterized and the relationships describing the reaction and sorption kinetics are collected. A general approach to model the process is presented as well as results obtained for a calculation example, which demonstrate the main properties of SE-SMR.
    Źródło:
    Chemical and Process Engineering; 2018, 39, 4; 427--448
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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