Wszystkie pola: Makowski, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A single-phase induction motor operating as a self-excited induction generator
Autorzy:: Leicht, A.
Makowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/141000.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: induction generator
single-phase
circuit modelling
self-excited
induction motor
Opis:: The purpose of the paper is the investigation of possibility of utilization of a single-phase induction machine, designed and normally operating as a single-phase capacitor induction motor, as a self-excited single-phase induction generator, which can be used to generate electrical energy from non-conventional energy sources. The paper presents dq model of the self-excited single-phase induction generator for dynamic characteristics simulation and steady-state model based on double revolving field theory with two phase symmetrical components – a forward and backward revolving field for performance of the generator under resistive load. Excitation and load characteristics obtained by simulation showed considerable influence of method of capacitor configuration in the load stator winding on terminal voltage, current and output power of the generator under load. An specific construction of the stator windings together with capacitor requirements to obtain nominal output power at desired self-regulating terminal voltage over the operating range will be the aim of further research.
Źródło:: Archives of Electrical Engineering; 2013, 62, 3; 361-373
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of a single-phase capacitor induction motor operating at two power line frequencies
Autorzy:: Leicht, A.
Makowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/140512.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: początkowy współczynnik jakości
silniki indukcyjne
symulacja
induction motors
single-phase
circuit modelling
simulation
starting quality factor
Opis:: The paper presents a modelling mathematical tool for prediction of dynamic and steady-states operation of the single-phase capacitor induction motor for different values of the capacitor capacitance and different frequency of voltage supply at no-load and rated load conditions. Developed mathematical model of the capacitor induction motor was implemented for calculation using Matlab/Simulink software. Presented simulation results may be utilized to achieve better starting quality of single-phase capacitor induction motors.
Źródło:: Archives of Electrical Engineering; 2012, 61, 2; 251-266
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Coherence investigations of DC voltage group standard
Autorzy:: Musioł, K.
Makowski, P.
Skubis, T.
Powiązania:: https://bibliotekanauki.pl/articles/200496.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: coherence
comparison
group standard
voltage standard
spójność
koherencja
porównanie
napięcie standardowe
Opis:: A method of checking coherence of comparison results of primary DC voltage group standards is described in the paper. Usefulness of the proposed method was proved by coherence investigation of DC voltage group standard kept in the Central Military Calibration Laboratory (CWOM, Warsaw, Poland). Results obtained for the group of five Fluke DC voltage standards prove very good coherence of voltage differences results and confirmed accuracy of DC voltage unit in the CWOM at the level of 10-6 .
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 2; 443-456
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Comparison of Large Eddy Simulations and κ-ε Modelling of Fluid Velocity and Tracer Concentration in Impinging Jet Mixers
Autorzy:: Wojtas, K.
Orciuch, W.
Makowski, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/185361.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: jet mixer
mixing
PIV
PLIF
LES
mieszalnik strumieniowy
mieszanie
Opis:: Simulations of turbulent mixing in two types of jet mixers were carried out using two CFD models, large eddy simulation and k-ε model. Modelling approaches were compared with experimental data obtained by the application of particle image velocimetry and planar laser-induced fluorescence methods. Measured local microstructures of fluid velocity and inert tracer concentration can be used for direct validation of numerical simulations. Presented results show that for higher tested values of jet Reynolds number both models are in good agreement with the experiments. Differences between models were observed for lower Reynolds numbers when the effects of large scale inhomogeneity are important.
Źródło:: Chemical and Process Engineering; 2015, 36, 2; 251-262
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Theoretical and experimental research of supersonic missile ballistics
Autorzy:: Zygmunt, B.
Motyl, K.
Machowski, B.
Makowski, M.
Olejniczak, E.
Powiązania:: https://bibliotekanauki.pl/articles/201046.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: missile exterior ballistics
mathematical model
computer simulation
test range experiment
pociski balistyczne
model matematyczny
symulacja komputerowa
Opis:: A mathematical-physical model of a supersonic missile was built, taking into account the mass and inertia properties. The model was implemented in the MathCAD14 simulation program. A numerical analysis of the missile ballistics was conducted and basic parameters were determined: range, altitude, velocity and acceleration, which enabled a test range program for manufactured missile models to be drawn up. Initial flight tests of missiles were carried out at the test range. Satisfactory accordance of experimental and theoretical dynamic parameters of the missile under study was obtained.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 1; 229-233
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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